IEEE
P802.11 - WIRELESS NEXT GENERATION (WNG) STANDING COMMITTEE (SC)
More recent presentations given in WNG SC (together with agenda and minutes) can be found here
September 2009, Waikoloa, Hawaii, USA
WNG had 1 presentation in this meeting:
1. 11-09-1000-01-0wng-ieee802-11-for-high-speed-mobility.ppt
Presentation about IEEE802.11 enhancement for high speed mobility support.
Mobile vs. Nomadic, Limitation of Market, Connectivity Lost
Straw Poll 1 – “IEEE802.11 should proceed to mobile communication.”
Yes: 8, No: 0, Need More Discussion: 15, Don’t Care: 1
Straw Poll 2 - “A Study Group to develop a PAR and 5C for
Fast Authentication and Key Exchange Method should be created”
Yes: 4, No: 4, Need More Discussion: 17, Don’t Care: 0
July
2009, San Francisco, California, USA
WNG had 7 presentations in this meeting:
1. 802.11
Energy Consumption and Policy
2. QoS for Management Frames - 11-09/0817r0
a. MOTION:
Request approval by IEEE 802 LMSC to form an 802.11 Study Group to Address QoS for Management Frames [as described in doc
11-09/0817r1] with the intent of creating a PAR and five criteria.
b. Result:
34 – Yes; 3 – No; 14 – Abstain. Motion Passes.
3. 802.11
in TVWS - 11-09-0749-01-0wng-802-11-in-the-tvws.ppt
a. MOTION:
Because of its suitability as a primary candidate for a TVWS technology, and in
the expectation that the FCC and Ofcom will clarify
their requirements for the database in the interim, the 802.11 WG should begin
a Study Group to develop PAR and 5 Criteria documents for approval by the EC at
the Atlanta Plenary in November 2009.
b. Result:
39 – Yes; 0– No; 15 – Abstain. Motion passes
4. Enhancement
Technology for vehicular communications – 11-09-0832-02-0wng-enhancement-technology-for-vehicular-communications.ppt
a. STRAW
POLL: Should IEEE 802.11 WNG receive further presentations on the topic of
enhanced technology for vehicular communications.
b. Result:
13 – Yes; 0 – No; 18 – Need more information.
5. WLAN
Public Easements - 11-09-0830-01-0wng-public-easements-for-802-11.ppt
a. STRAW
POLL: Should 802.11 WNG receive further presentations on the topic of public
easements?
b. Result:
19 – Yes; 0 – No.
6. Enhanced
Security for 802.11i - 11-09-0315-04-0wng-enhanced-security.ppt
a. MOTION:
Move to request the 802.11 Working Group to approve and forward to the IEEE 802
Executive Committee the creation of a new IEEE 802.11 Study Group, called the
Enhanced 802.11 Security Study Group (ESSG), to investigate ways to provide
security enhancements to 802.11 on the following:
• Secure,
robust, de-centralized, peer-to-peer key management.
• Faster,
more robust, or more power-efficient ciphers.
Upon
confirmation of feasibility and per 802 operating rules, the ESSG shall draft a
PAR and 5 criteria to be submitted to the 802.11 WG.
b. Result:
22 – Yes; 8 – No; 10 – Abstain. Motion Fails.
7. Broadband
V2I Access for High Speed Transportation – 11-09-0111-03-0wng-broadband-v2i-access-for-high-speed-transportation.ppt
a. STRAW
POLL: A Study Group to develop a PAR and 5C for High-speed Broadband Access for
802.11 should be created.
b. Result:
6 – Yes; 0 – No; 13 – Need more discussion; 0 –
Don’t care.
May 2009,
Montreal, Canada
WNG had 4 presentations in this meeting:
1. 11-09-0111-02-0wng-broadband-v2i-access-for-high-speed-transportation.ppt
StrawPoll: A study group to develop a PAR and Five
Criteria for “High Speed Broadband Access for high speed vehicular transportation
systems” should be created.
a)Yes – 2 b)No -3 c) Don’t
know, Need more information - 23 d)Don’t care. -3
2. 21-09-0069-03-0000-mrpm-principle.ppt
3. 11-09-0315-02-0wng-enhanced-security.ppt
MOTION: Move to request the 802.11 Working Group to approve and forward to
the IEEE 802 Executive Committee the creation of a new IEEE 802.11 Study Group,
called the Enhanced 802.11 Security Study Group (ESSG), to investigate ways to
provide security enhancements to 802.11 on the following:
• Secure,
robust, de-centralized key management using public key-based and password-based
credentials.
• Faster,
more robust, or more power-efficient ciphers to protect 802.11 frames.
Upon confirmation of feasibility and per 802 operating rules, the ESSG shall
draft a PAR and 5 criteria to be submitted to the 802.11 WG.
Yes: 10, No: 7, Abstain: 22 (Motion Failed).
4. 11-09-0580-00-0wng-future-security-activities.ppt
March
2009, Vancouver, British Colombia, Canada
WNG had 3 presentations in this meeting:
- 11-09-0315r1 "Enhanced
Security Features for 802.11". The result of the straw poll question
"A study group to develop a PAR and Five Criteria for Enhanced
Security for 802.11 should be created." resulted in Yes: 11, No: 1,
Don’t know, Need more information:11, Don’t care: 6.
- 11-09-0338r0
"Enhancement of 802.11 ad-hoc Mode".
The result of straw poll question "Should IEEE 802.11 WNG receive
further presentations on the topic of performance improvement for IEEE
802.11 ad hoc mode?" resulted in Yes: 10, No: 1, Abstain: 14
- 11-09-0337r0 "802 Next
Generation Security". Generated a lot of debate about where the
future security requirements of IEEE 802.11 (and indeed IEEE 802) could be
going.
January
2009, Los Angeles, California, USA
WNG had 4 presentations in this meeting:
- 11-08-1337r0:
"Broadband access for high-speed transportation". Straw poll
indicated sufficient interest to continue further study.
- 11-08-1358r2: "Fast
handover support for highly mobile users using cots 802-11 cards. This
presentation discussed how a fast and seamless handover for Real-Time
Telemetry is possible using standard COTS IEEE 802.11 chipsets
- 11-09-0123r1: "Secure
802.11 Authentication Using Only A Password" .
This presentation explained why Authentication using a password or
pre-shared key has not been done properly in 802.11.
As a result there is no way to use these credentials to secure a WLAN.
More to follow
- 11-09-0077r3: "TV white
space update 1". This presentation provided
an update on the FCC Rules For Unlicensed Use of
Television White Spaces and its impact on Part 15 devices.
It discusses the use of TV White Space and provided a set of straw polls
to determine the 802.11 position.
November
2008, Dallas, Texas, USA
WNG had 5 presentations in this meeting:
- 11-08-1337r0: "Broadband
access for high-speed transportation"
- 11-08-1273r1: "Hybrid
MAC for VANET"
- 11-08-1259r0: "Security
of wireless networks: how low layers security can help"
- 11-08-1346r0: "Topology
discovery and coverage area approximation with 802.11k"
- 11-08-1254r1: "TV white
space FCC action". A motion on Request for approval by IEEE 802 LMSC
to form an 802 Study Group to review TV white space in the light of the
FCC's TV white space actions of November 4, 2008 ,
with the intent of creating a PAR and five criteria was passed.
September
2008, Waikoloa, Hawaii, USA
WNG had 5 presentations in this meeting:
1) 11-08-1086r0: "IEEE 802.21 Broadcast Handovers Study Group"
also see 21-08-0258-00-bcst-indoor-coverage-of-dvb.ppt
2) 11-08-1046r0: "WAVE Channel Modeling and The Midamble
Insertion Effects"
3) 11-08-1020r1: "WLAN field trial in high speed moving environment"
4) 11-08-0973r0: "Security in Wireless Networks: using PHY resources to do
better"
A straw poll indicated that there was not enough interest to pursue study
group creation at this point.
5) 11-08-1022r0: "SlyFi: Enhancing 802.11 Privacy by Concealing Link Layer Identifiers"
July
2008, Denver, Colorado, USA
WNG had 1 presentations in this meeting.
1) Radio Transmission Technology for V2V/V2I Applications. This presentation
is a follow-on to the March presentation, Simulation
results were presented to highlight the impact of two technology areas:
a) Mid-amble based Channel estimation for long packet
b) CSMA/CA-TDMA combined MAC for service priority
The strawpoll result indicates a strong interest
in continuing the presentations in the V2V and V2I areas in future meeting.
May
2008, Jacksonville, Florida, USA
WNG had 3 presentations in this meeting
1) Segregated Data Services in 802.11. This presentation is a revised
version of an earlier presentation given at the Taipei meeting. It introduced the segregation
of traffic between a mesh and fixed infrastructure. The author is invited to
provide a more detailed presentation at the next meeting.
2) Faciliting Powerline Communication (PLC) PHYs.
This presentation focused on an alternative to wireless communication - powerline communication (PLC). There exists several
consumer and SOHO use cases where wireless
communication cannot reach with sufficient bandwidth and it is impossible to
pull new wiring. Powerline communication usefulness
could be facilitated by combining an 802.11 MAC with a powerline
PHY.
3) Presence information in large mesh networks. This presentation describes
a protocol that provides upper layers with a means of communication with remote
nodes, but no efficient means of knowing which nodes are reachable in the first
place. Accordingly, presence service should be implemented at Layer-2 because
it can make reactive routing protocols more efficient and does not break
power-saving schemes at Layer-2.
March
2008, Orlando, Florida, USA
WNG had 3 presentations in this meeting
1) Mobility Concepts in 802.11. This presentation highlighted several
fundamental topics related to mobility extension. The author is invited to provide
a more detailed presentation at the next meeting.
2) WAVE Enhancement. This presentation focused on enhancements to V2V
(vehicle to vehicle) and V2I (vehicle to Infrastructure) and why its important to consider the issues relevant to 802.11 for
vehicular deployments.
3) Impact of Multi-hop MESH flows on WLANs. This presentation is a follow up
from a presentation in 2007 and the author has done some simulations based on
feedback from earlier meetings.
Plans for May 2008 Jacksonville
meeting
Call for Presentation on emerging topics of wireless communications.
January
2008, Taipei, Taiwan
WNG had 2 presentation in this meeting
1) Next Generation Security for 802.11. This presentation highlighted
elements of next generation wireless security that's needed for future work
within 802.11.
2) Segregated Data Services in 802.11. This presentation provided a narrower
scope from an earlier presentation given in Atlanta. The author solicited feedback which
will be incorporated in the next revision of the presentation to be given in
the Orlando
meeting.
Plans for March 2008 Orlando
meeting
Call for Presentation on emerging topics of wireless communications.
November
2007, Atlanta, USA
WNG had 3 presentations in this meeting.
Terahertz Frequencies
1) Introduction to terahertz (300 GHz+) technologies.
(doc:
11-07-2068-00-0vht-extreme-bandwidth-wireless-area-networks-utilizing-terahertz-frequencies.ppt)
2) Recent actions by the US Delegation to the ITU/WRC 2007 conference have
managed to forestalled impending spectrum allocations within terahertz (THz)
frequencies until at the earliest the next WRC conference in 2011.
(doc: 11-07-2731-00-0vht-current-sataus-on-terahertz-spectrum-allocation.ppt)
3) Content Protection Support
(doc:
11-07-2778-00-0wng-content-protection-support-in-802-11.ppt)
High definition audio and video applications are becoming popular for WLAN,
and content protection requirement is ubiquitous. Due to the characteristics of
the wireless media, content protection in wireless LAN requires support from
the MAC and PHY layer. The requirement of content protection support and
possible working areas in WLAN are presented.
Plans for Jan 2008 Session (Taipei)
Call for Presentation on emerging topics of wireless communications.
September
2007, Hawaii, USA
WNG had 1 presentation in this meeting.
1) Segregated Data Services (doc:
11-07-2491-01-0wng-segregated-data-services.ppt)
A motion to request the IEEE 802.11 Working Group to approve and forward to
the IEEE 802 Executive Committee the creation of a "WLAN Segregated Data
Services" Study Group to consider how best to meet requirements as follows
and how best to coordinate such activities with 802.1 was approved by the
Standing Committee.
July
2007, San Francisco, USA
WNG had 3 presentations in this meeting.
1) Segregated Data Services (doc:
11-07-2161-00-0wng-segregated-data-services.ppt)
2) Rotated and Scaled Alamouti Coding (doc:
11-07-2114-00-0wng-rotated-and-scaled-alamouti-coding.ppt)
3) WPAN, WLAN, WWAN Mutli-radio
Coexistence (doc:
11-07-2117-00-0wng-wpan-wlan-wwan-multi-radio-coexistence.ppt)
May
2007, Montreal, Canada
WNG had 3 presentations in this meeting:
1) "Supporting Drop Eligibility in IEEE 802.11 MAC", Osama Aboul-Magd, 11-07/693r0.
2) "Dynamic Point-to-Point OFDM Adaptation for IEEE 802.11a/g
Systems", Marc Emmelmann, 11-07/0720r0.
3) "Real-Time Deployment of a Reliable Multihop
Network", Michael Souryal 11-07/297r1.
March
2007, Florida, USA
WNG had 5 presentations in this meeting:
1) 802.11 versus WMM Analysis (doc:11-07-0314-00-0wng-802-11-vs-wmm-analysis.xls)
Spreadsheet which compares various parameters between the
existing IEEE 802.11 standard and those in Wi-Fi Alliance's WMM specification.
2) Video Streaming over 802.11 networks (doc:11-07-0400-00-0wng-video-streaming-over-802.11.ppt)
This was a presentation of use cases, building on previous meetings
presentations and also Monday evening's tutorial : (http://grouper.ieee.org/groups/802/802_tutorials/march07/video%20over%20802%2011%20Tutorial-final.ppt
3) IPN-WLAN: IPN Enabled Wireless LANs (doc:11-07-0299-00-0wng
(IPN-WLAN: IPN enabled Wireless LANs)
This presentation introduced a new 'mutual authentication' technology for
IEEE802.11 wireless LANs called 'IPN-WLAN'.
4) High Speed Broadband Wireless LAN solution (doc:
11-07-0402-00-0wng-high-speed-broadband-wireless-lan-solution.ppt)
The presentation presented a way to improve the data transmission speed of
802.11a/g, using a high-speed broadband wireless LAN solution
5) Looking Ahead to The Future (doc:11-07-0412-01-0wng-looking-ahead-to-future.ppt)
This presentation provided an encouragement to initiate the development of
new enhancements to 802.11 to deliver very high data rates.
January
2007, London, UK
WNG had 1 session at this meeting, with 3 presentations
- WMM/11e PAR Considerations (11-07-0116r0).
The presentation considers the need to transition IEEE 802.11e to
WMM (Wi-Fi Multimedia) as it is felt that WMM has been adopted in the
market place and has aspects that do not interoperate with IEEE 802.11e.
Following a short introduction the presentation requests, that a new Task
Group (PAR and 5C proposal available in 11-07-0029r1) be established
within IEEE 802.11, to harmonise these two
specifications.
- Audio Video Multicast Protocol
(11-07-0034r0). The presenters want to support services such as
IPTV. It is known that IEEE 802.11e provides QoS
for AV connections, however, AC-VO and AC-VI have
high collision probability because of the small contention window. AV
multicast protocol can't provide QoS because the
collided frames are lost and unfair channel access between AV multicast
and AV unicast occurs. This presentation
addresses some of these issues in more detail.
- An update of Video over WLAN
(11-07-0105r0). For over a year, there have been various presentations
within WNG SC looking at the need to provide a
higher level of QoS in particular for video
transmission over IEEE 802.11. The presenters are trying to narrow the
scope of potential work in this area. Between November 2006 and this
meeting, the presenters have had a couple of conference calls and it was
decided that it is now appropriate to give an update on what was discussed
and what conclusions have been arrived at.
November
2006, Dallas, Texas, USA
WNG had 1 session at this meeting:
There were 4 presentations:
- Multicast Issues Multimedia Application:( 11-06-1687r0). The basic premise is that
current multicast support in IEEE 802.11 is not suitable for high speed
video Multimedia transmission. This submission builds on an earlier
presentation made in WNG in July 2006. It would be useful to allow
multicast transmission for the home environment and possibly the
enterprise environment. It talks about the current unreliable multicast
mechanism, which does not use an acknowledgement mechanism. The submission
presents 4 separate issues which need to be addressed. A strawpoll was taken to ascertain if there is
sufficient interest to start a new Study Group.
- Power Saving Limitation for
Multicast Applications (11-06-1747r0) . This
submission presents an overview of the power management scheme in IEEE
802.11 standards and discusses its limitation with regard to the multicast
cases. This would be typically useful to live TV and Video on Demand transmissions.Again it refers to the limitations of
the current IEEE 802.11 multicast scheme, especially when considering
power saving. It is felt that this is important for light weight battery
terminals (e.g. PDAs). Results are shown for various IEEE 802.11 power
saving modes. The conclusion is that a new power conservation system
should be designed for STAs.
- Cooperative Cross-Layer
Communication (11-06-1767r0). This submission introduces various PHY layer
cooperative communication concepts to the IEEE 802.11 community.
Significant performance (throughput, range, reliability, etc.)
enhancements are possible by the "cooperative" use of STAs in an
IEEE 802.11 network, as opposed to "combative" use. Following
these strategies all the STAs in a cell can win. This concept is different
from multihop, where STAs are essentially relays
within a network. Co-operation can use a partner STAs within the network
and utilizes macro-diversity in the receiver as shown in slide 3 (i.e.
simultaneous reception of the same frame from difference sources). The
paper then goes onto to present various co-operative methods which have
currently being discussed within academia. These operate at both PHY and
MAC layers. They would be very useful for in-home networks and provides
considerable benefits for video distribution.
- CoopMAC:
A cooperative MAC compliant with IEEE 802.11 (11-06-1642r0): This
submission also dealt with cooperation between the MAC and PHY layers. It
presents some of the motivations of co-operation. Essentially co-operation
is useful as the wireless link is unreliable. It builds on the previous
submission and shows how receiver combining can work in practice. In
addition it has some performance results for IEEE 802.11g with and without
co-operation. The results also show channel access delay and energy
efficient measurements when using this system. A demo was constructed with
4 laptops, utilizing 2 helps (partners) and results were presented. The
conclusion is that co-operation in the MAC layer, significantly improves
the performance of the system.
September
2006, Melbourne, Victoria, Australia
WNG had 1 sessions at this meeting:
There were 3 presentations:
802-11a-in-outdoor-mobile-environments(06/1339r0).
This presentation demonstrated the IEEE 802.11a waveform can be used in
outdoor, mobile environments without modification. This is achieved with
receive side PHY processing improvements only. The channel experienced under
outdoor, mobile conditions is reviewed and a baseband receive processor is
presented that can cope with these conditions. This was followed by results
from a recent field trial incorporating such a receiver. A video was also
shown.
Extensions to DLS (06/1478r0) . This presentation
identified few short comings in current DLS scheme defined as part of
802.11-REVma/D8.0 draft. It provided the rationale for examining DLS operation
with non 802.11e APs and also power saving extensions to DLS. The presentation
ended with a motion to form a Study Group in order to examine DLS operation
with non 802.11e APs and to examine power saving extensions to DLS with the
intent to create a PAR and five criteria to form a new task group.
Traffic-aware(06/0912r0). This presentation
provided the rationale for traffic aware mechanism in WLAN and mesh environments.The benefits of traffic aware mechanisms can
help alleviate traffic congestion in WLAN mesh. The benefits of load balancing
and QoS guarantee were also explained.
July
2006, San Diego, California, USA
WNG had 2 sessions at this meeting:
There were 5 presentations:
- 802.64 amendments to
support CE (Consumer Electronic) Applications: Technical Requirements 11-06-0898r2.
This document discusses consumer electronic (CE) applications and
describes the technical requirements that should be met to provide high
quality audio and video contents over IEEE 802.11. It is an revised presentation from 11-06-0655r0, presented in
May 2006. There is a trend for more and more CE devices which now support
wireless connectivity (e.g. home theatres, game consoles, Digital TV, Set
Top Box). Document goes on to discuss many WLAN CE applications and
discusses the adoption of DRM.
- Layer 3 based MESH networking : 11-06-0916r1. Work also related to IETF
activities (e.g. MANET, MASE) and they have several internet drafts
already. This submission presents the work of various Japanese
universities and groups, within the project "next generation ad hoc
network base technologies". They have developed a test bed
demonstrator across the university with more than 50 nodes.
- MIMO-OFDM Beamforming
: 11-06-0979r0. Detailed submission looking at a beamforming technique, showing mathematical techniques
to solve and reduce the output matrix values.
- Multi-media challenges for
IEEE 802.11 : 11-06-0892r1. The submission looks
at AV networks and also some of the requirements in the TV production
studio, with typically 6-12 High Definition cameras. It must be remembered
that a camera control channel is also required. TV studios are quite
attractive for MIMO system, but unfortunately outdoor locations are
completely different environments and up to 40 channels may be required.
- WLAN for next generation AV : Motion for SG Creation : 11-06-1021r1.
Presentation about the motivation and objective behind the proposed audio
visual study group. It is felt that such extensions to IEEE 802.11 will
allow it to play a major role in the entertainment industry. The ITU has
just established a group looking at home networking, examining all wired
solutions (but not wireless).
May
2006, Jacksonville, Florida, USA
WNG had 2 sessions at this meeting:
The first session had 4 presentations and the second session had 2
presentations:
- IEEE 802 - 2001 Overview
and Architecture General Bit Rates :
11-06-0635r1r0. This document proposes that the IEEE 802 - 2001 Overview
and Architecture (Wireless Delivery) error rate specification is
impossible to meet. This is essentially because you can not control the
packet error rate or the latency of the system. There are so many
parameters than you cannot control, e.g. CRC checksums, PLCP checksums
etc. This is further complicated within a mesh architecture (e.g. IEEE
802.11s).
- Use Cases of WLAN for
Audio/Video Streams : 11-06-0655r0. This
presentation introduces typical consumer electronic devices which could
use WLANs (IEEE 802.11n) in the future (e.g. Digital TV, Home Theatres,
Portable Multimedia Players - PMP), which typically use high data rate
audio/video (AV) streams. These devices all have stringent QoS requirements.
- MAC performance improvement
using random AIFSN: 11-06-0713r1. This presentation looks at ways to
alleviate contention within the home environment. AIFSN (Arbitration inter
frame space number). The use case is very similar to that presented in the
previous presentation, which shows the digital home of the future. The
presentation suggests that IEEE 802.11e can be used for the channel access
mechanism, but by using a random AIFSN, the channel access mechanism can
be improved for multiple stream operation.
- Multi-channel Direct Link Protocol for HD
video: 11-06-0691r0. This presentation is an updated presentation
from TGv in March 2006. Initially WLAN had low
congestion, and therefore high QoS. But this situation
will change in the future. However, channels will be limited, even with
direct link (peer to peer) IEEE 802.11n operation. The document discusses
these issues. 3 straw polls were taken.
- Liaison-request-from-tia-tr41-4:
11-06-0720r1. This presentation is a summary of the liaison request from
TIA TR-41.4 contained in IEEE 802.11-06/0557r0. It seeks information on
whether 802.11 has mechanisms in place to support
admissions control and prioritization requirements necessary for emergency
calls from VoWLAN phones.
- Proposed-multi-purpose-802-11-mac-extensions:
11-06-0632r1. This presentation described a possible extension of the
802.11 MAC protocol to allow parallel use of multiple channels by a set of
wireless devices which can boost aggregate throughput beyond what an
enhanced link protocol can.
March
2006, Denver, Colorado, USA
WNG had 2 sessions at this meeting:
The first session had 4 presentations:
- 802.21 Liaison
(11-06-0374r0). This presentation initiated a discussion on the liaison
received from 802.21.
- A presentation of the OBAN
concept: An IST Project under EC's 6th framework (11-06-0353r0): This
presentation introduces the concept of OBAN (Open Broadband Access
Network), an European funded project under the
IST 6th framework program. It focussed on the
mobility architecture and the challenges and potential solutions for fast
handovers.
- Introduction to CIRCLE
(Communications Infrastructure Restoration in the event of Catastrophic
Loss of Equipment) (11-06-0433r0). This presentation initiated a
discussion of catastrophic loss of communications infrastructure and
highlighted the need for a standards approach to providing rapid recovery.
- 802.11 MAC Extensions for
Increasing Aggregate WLAN Throughput (11-06-0408r0). This presentation
described a MAC protocol that allows parallel use of multiple channels
which can boost WLAN aggregate throughput beyond what a link protocol can.
The second session (held as part of mid-week plenary) had 3 presentations:
- 802.11 and
PLC (11-06-0474r0). This presentation IEEE 802.11
technologies are relevant to Power Line Communications (PLC). It introduced
IEEE PLC standardization effort (P1901) and offered some ideas of where
partnerships can be established
- Update on HD Video over WLAN
(11-06-0360r0). This presentation provided a summary of activities on HD
video over WLAN. The discussion focused on trends, use-cases in HD video, and relevant MAC enhancements with respect to
these cases. The scope of a possible amendment to 802.11 was also
presented.
- More "what is
802.11u?" (11-06-0375r0). This presentation
provided a deeper understanding of the scope of 802.11u. It provided an
overview of the current status and process of 802.11u within the IEEE
802.11 standardization activities.
March 2006 Goals
- Ambient Project Update
- OBAN (European IST Project)
January
2006, Big Island, Hawaii, USA
WNG had 2 main topics for discussion this meeting:
- Video transmission
update (11-06-0039r2). This paper gave a brief update to the video
transmission presentation given in the previous November meeting.
- CBP and David Allen's
methods (11-06-0056r0): This paper explained how can Dave Allen's
(reference in document 11-06-0056r0) ideas be applied to the running and
organization of the study group (organization, brainstorming, quality).
March 2006 Goals
- Ambient Project Update
- OBAN (European IST Project)
November
2005, Vancouver, British Columbia, Canada
WNG had 2 main topics for discussion this meeting:
- Opportunities and use of
IEEE 802.11 for short range communications in Space (11-05-1132r0). This
paper introduced opportunities for he
exploitation of IEEE 802.11 within spacecraft and short range
communications between spacecraft.
- Video transmission
update (11-05-1164r0). This paper gave a brief update to the video tranmission presentation given in the previous
September meeting.
January 2006 Goals
- Video transmission
- OBAN (European IST Project)
September
2005, Garden Grove, California, USA
WNG had 4 main topics for discussion during the meeting:
1. IEEE 802.1AM PAR issues. WNG continued the discussion from the last
meeting in July. Data brought into the group were discussed and considered very
valid as part of a living document.
2. Update on FMCA. This presentation provided an overview of the FMCA. There
is general interest from FMCA to foster good working relationship with IEEE
802.11.
3. Improving IEEE 802.11 Performance with
Cross-Layer Design and Multipacket Reception via
Multiuser Iterative Decoding. Receivers today have the ability to decode more
than one packets from multiple users. Such a physical
layer can deliver significant improvements to network performances. Thus, the
classical collision model is no longer realistic and a cross-layer approach
should be employed when designing multiple access protocols. This is especially
the case for CSMA communications, which previously have not been implemented
with a multipacket reception (MPR) model. The author
proposed applying recent information theoretic results in multiuser iterative
decoding to help improve IEEE 802.11 wireless LAN standards' performances. This
method also preserves the underlying physical layer's implementation.
4. 802.11 MAC extensions for high rate video. This presentation identified a
two-dimensional QoS and dynamic priority, rate and FEC
adaptation based on RRM. Initial results were presented on the home networking
scenarios, simulation of 802.11e, and a direct link selection mechanism.
USEFUL LINKS TO OTHER SITES:
IEEE P802.11 WLANs RELATED
OTHER SITES
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