The Vision

1
The Vision !

• Where have we been?
• Where are we today?
• Where are we going?
• What is the long-term?
• Stuart J. Kerry
• Chair, IEEE 802.11 WLANs WG

2
Objectives of IEEE 802

• To develop consensus standards that benefits the
  World Wide Networked Society
• Maintain the imperative principals of standards
  making
• Due process
• Consensus
• Openness
• Balance
• Rights of appeal
• Publish LAN / MAN Standards in electronic format

3
802.11 Which Layers are Standardized?
Application
Presentation
Session
Transport
ISO/OSI Reference Model
Network

Data Link
LLC (802.2) and Bridging (802.1)
Area of Focus
Medium Access Control Sub Layer
Physical
Physical Layer
4
802.11 Standards Organization in IEEE
IEEE Standards Association
Standards Activities Board
Sponsor Local and Metropolitan Area
Networks (LMSC, IEEE 802)
Sponsor
Sponsor
802.3 CSMA/CD Ethernet 1-100 Mbps
802.5 Token Passing Ring
802.15 Wireless Personal Area Networks
802.16 Broadband Wireless Broadband Access
802.11 Wireless WLAN
802.18 Radio Regulatory TAG
802.20 MBWA Mobile IP
802.19 Co-existence TAG

• IEEE 802.11 1497 Members, 300 supporting
  companies
• www.ieee802.org/11

5
802.11 Processes
STANDARD
Passage Requires 75 or greater
approval (Typically 95 Acceptance)
RevCom
Review Draft, Approve or reject
IEEE 802 SPONSOR GROUP
Rejected
Review Draft, Approve or reject
802.11 WORKING GROUP
Debate Technology, Write a Draft Standard
802.11a-n TASK GROUPS
PAR Approved
Gain support, prepare and submit a PAR
802.11 STUDY GROUPS
Initial Idea for a standard or improvement to
a standard
802.11 AD_HOC GROUPS
6

• IEEE 802.11 Working Group for WLANs
• Completed Standards

1997 802.11 Standard
1999 8802.11 ISO Standard
1999 802.11a
1999 802.11b
2001 802.11b-Cor1
2001 802.11d
7

• IEEE 802.11 Working Group for WLANs
• Completed Standards

• 802.11-1999 (2003 EDITION)TM Wireless LAN Medium
  Access Control (MAC) and Physical Layer (PHY)
  Specifications
• 802.11b up to 11 Mbps, DSSS, 2.4 GHz band
• 802.11a up to 54 Mbps, OFDM, 5 GHz band
• 802.11d - Specification for Operation in
  Additional Regulatory Domains

8
IEEE 802.11 Working Group for WLANs

• 802.11f-2003TM IEEE Recommended Practice for
  Multi-Vendor Access Point Interoperability via an
  Inter-access Point Protocol Across Distribution
  Systems Supporting IEEE 802.11TM Operation
• 2 Year Trial Use Recommended Practice, published
  separately from the 802.11 standard document

9
IEEE 802.11 Working Group for WLANs

• 802.11g-2003TM Wireless LAN Medium Access Control
  (MAC) and Physical Layer (PHY) specifications
  Amendment 4 Further Higher Data Rate Extension
  in the 2.4 GHz Band
• 802.11g up to 54 Mbps, DSSS/OFDM, operating at
  2.4 GHz
• (backward compatible with 802.11b)

10
IEEE 802.11 Working Group for WLANs

• 802.11h-2003TM Wireless LAN Medium Access
  Control (MAC) and Physical Layer (PHY)
  specifications, for Spectrum and Transmit Power
  Management extensions
• Dynamic Frequency Selection (DFS)
• Transmit Power Control (TPC)
• Both techniques facilitate sharing of spectrum
  with incumbent services (interference
  mitigation) and improve the efficiency of WLAN
  operations (avoiding interference between
  adjacent WLAN cells by spreading usage across
  the band in a relatively uniform manner)

11
IEEE 802.11 Working Group
International Standard ISO/IEC 8802-11
1999 Completed additions in Green
1999
1997
Published as IEEE Standard IEEE Std.
802.11-1997 Initial capabilities in White
12
802.11 Liaisons with Standards Organizations
Industry Bodies
IEEE 802.15/.16./18/.19/.20 / .21
OFDM Forum
IETF
IEEE 1394
Europe ETSI
IEEE 802.11
Japan MMAC/PC
Bluetooth
3GPP
Wi-Fi Alliance
5GIAG
Cable Labs
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Wireless Interworking
Roaming Broker
3GPP MNO
Mobile Client
HLR
AAAH
3GPP2 MNO
AC
AAAH
Internet
W-ISP Access Network
Home ISP
AAAH
Source IEEE 802.11 WNG
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802.11 Wireless Interworking Group (WIG)

• Objectives
• To be an integral part in the production of a
  generically applicable interworking standard for
  WWAN and other public networks.
• To be the point of resolution for ETSI, IEEE and
  MMAC on issues and questions related to
  interworking with WWAN and other public networks.

• Convergence of WLAN, WWAN, Networks
• Multiple Standards
• Internet
• Service Providers
• QoS
• Security
• Authentication

MMAC
3GPP2
15
The Connected World
16
Vision
A world where everyone can always connect to
information, entertainment services
17
802.11 Indoor Wireless LAN Migration

• IEEE 802.11
• Fourth-Generation of
• Wireless Communications
• Large User Protection
• Full Roaming/Handoff Capability
• Contiguous Coverage in Dense Areas
• Wider Area Coverage for Community LANs
• Mobility (Follow-Me Service)
• Mix of Async and Isochronous Traffic
• Higher System Utilization
• Enhanced Security

First Generation Wireless LANs

• Peer/Peer and Client/Server
• Small User Population
• Isolated "Cells" and User Groups
• Non-Contiguous Coverage
• Indoor Operation
• Limited Mobility
• Mostly Asynchronous Traffic
• Slower than Ethernet

18
Overview 802.11 Mesh Architectures
Source IEEE 802.11 WNG
19
IEEE 802.11 Working Group for WLANs http//ieee802
.org/11/ The IEEE 802.11 Working Group develops
consensus standards for Wireless Local Area
Network (WLANs)
20
IEEE 802.11 Working Group for WLANs

• Completed Standards
• 802.11, 2003 EDITIONTM Wireless LAN Medium
  Access Control (MAC) and Physical Layer (PHY)
  Specifications
• 802.11b up to 11 Mbps, DSSS, 2.4 GHz band
• 802.11a up to 54 Mbps, OFDM, 5 GHz band
• 802.11d - Specification for Operation in
  Additional Regulatory Domains
• 802.11g-2003TM Wireless LAN Medium Access
  Control (MAC) and Physical Layer (PHY)
  specifications Amendment 4 Further Higher Data
  Rate Extension in the 2.4 GHz Band
• 802.11g up to 54 Mbps, DSSS/OFDM, operating at
  2.4 GHz
• (backward compatible with 802.11b)

21
IEEE 802.11 Working Group for WLANs

• Active Task Groups
• IEEE 802.11e (Task Group e)
• Wireless LAN Medium Access Control (MAC)
  enhancements to the current 802.11 Standard to
  provide Quality of Service (QoS)
• Quality of Service is important for certain
  applications
• Streaming audio and video
• Voice over IP (VOIP) Telephony
• Others
• IEEE 802.11h (Task Group h) approved
  published SEP 2003
• Wireless LAN Medium Access Control (MAC) and
  Physical Layer (PHY) specifications, for
  Spectrum and Transmit Power Management extensions
• Dynamic Frequency Selection (DFS)
• Transmit Power Control (TPC)
• Both techniques facilitate sharing of spectrum
  with incumbent services (interference
  mitigation) and improve the efficiency of WLAN
  operations (avoiding interference between
  adjacent WLAN cells by spreading usage across
  the band in a relatively uniform manner)

22
IEEE 802.11 Working Group for WLANs
Active Task Groups IEEE 802.11i (Task Group i)
ratified July 2004 Enhancements to the
current 802.11 MAC to provide improvements in
Security The purpose of Task Group i is to
enhance the current 802.11 MAC to provide
improvements in security. IEEE 802.11j (Task
Group j) Enhancements to the current 802.11
Standard to provide 4.9GHz - 5GHz Operations in
Japan The purpose of Task Group j is to
enhance the 802.11 standard and amendments, to
add channel selection for 4.9 GHz and 5 GHz in
Japan to conform to the Japanese rules on
operational mode, operational rate, radiated
power, spurious emissions and channel sense.
23
IEEE 802.11 Working Group for WLANs

• Active Task Groups
• IEEE 802.11k (Task Group k)
• Enhancements to the current 802.11 Standard to
  provide Radio Resource Measurements of Wireless
  LANs 
• Task Group k will define Radio Resource
  Measurement enhancements to provide mechanisms to
  higher layers for radio and network measurements.
• Define and expose radio and network information
  to facilitate the management and maintenance of
  a wireless and mobile LAN
• Shall be compatible with the IEEE 802.11 MAC
• Shall implement all mandatory portions of the
  IEEE 802.11 standards and specifications
• Targets further developing the management of all
  802.11 networks
• IEEE 802.11m (Task Group m)
• Enhancements to the current 802.11 Standard to
  provide Technical Corrections and Clarifications 
  
• Task Group m is a Maintenance Project
• Respond to requests for interpretations
• Define work items for future maintenance of the
  802.11 standards

24
IEEE 802.11 Working Group for WLANs
Active Task Groups IEEE 802.11n (Task Group
n) Enhancements to the current 802.11 Standard to
provide improvements in throughput 2 Major
Competing Alliances TGn Sync Multiple input
/ multiple output (MIMO) antenna technology 40
MHz wide channels (mandatory) Up to 500 Mb/s
data rates achievable Philips, Intel, Sony,
Nokia, Atheros, Agere, Nortel, Samsung, Sanyo,
Marvell, Toshiba, Panasonic World Wide Spectrum
Efficiency (WWiSE) MIMO-OFDM technology 20 MHz
channels TI, Conexant, Airgo, Broadcom,
STMicroelectronics
25
New Areas of Interest

• IEEE 802.11p (Wireless Access for Vehicular
  Environment)
• Formerly DSRC group. Unique use based on 802.11a
  PHY.
• IEEE 802.11r (Fast Roaming)
• Enhancements to the MAC layer to minimize or
  eliminate the amount of time data connectivity
  between the STA and the DS is absent during a BSS
  transition, limited to the state necessary for
  the operation of the MAC. Applied only to the
  STAlt-gtAccess Point (AP) state within the same
  ESS, and will not apply to the IBSS case.
  Security must not be decreased as a result of the
  enhancement.
• IEEE 802.11s (ESS Mesh Networking)
• Extended Service Set (ESS) Mesh with an IEEE
  802.11 Wireless Distribution System (WDS) using
  the IEEE 802.11 MAC/PHY layers that supports both
  broadcast/multicast and unicast delivery over
  self-configuring multi-hop topologies
• IEEE 802.11T 802.11.2 (Wireless Performance
  Prediction)
• Testing, comparison, and deployment planning of
  802.11 WLAN devices based on a common and
  accepted set of performance metrics, measurement
  methodologies and test conditions. Performance
  Parameter Stabilization across systems
• WIEN SG TGu (Wireless Interworking with
  External Networks)
• Standard for the interworking of IEEE 802.11 with
  external networks. It is necessary for IEEE
  802.11 to create a standard, which specifies the
  requirements and interfaces between IEEE 802.11
  and external networks, such as those found in
  Cellular systems.
• WNM SG TGv (Wireless Network Management)
• Global Wireless Management extension of TGk

26
New Areas of Interest Soon

• IEEE 802.11WNG (Standing Committee)
• Wireless Next Generation Standing Committee
• The Wireless Next Generation Standing Committee
  is tasked with exploring and considering future
  technologies, architectures, with the goal of
  proposing future projects that provide
  enhancements to the overall 802.11 standard
• Higher throughput
• More efficient network architectures for
  enhanced features
• Roaming
• Handoff
• Integration with other services
• Other improvements based on the availability of
  advancements in technology
• WLAN 3G InterWorking
• Telematics
• IEEE 802.11 WLAN Advanced Security SG (Wireless
  LAN Security)
• Considered by 802.11 Chair / formation November
  2004
• Future ongoing Enharsments and Maintenance for
  802.11

27
IEEE 802.11 Architecture
Reaffirmed 802.11 Active work in red Completed
work in yellow
2003
n
u
WIEN
5 GHz High Throughput
i
Enhanced Security Mechanisms
k
s
Radio Resource Measurements
ESS Mesh
e
MAC QoS Enhancements
SG
j
SC
Japan Extensions
Wireless Next Generation
Wireless Access Vehicular Environment
MAC
h
r
SC
5 GHz Spectrum Managed
Publicity
Fast Roaming
g
PHY
F
T
2.4GHz High Rate gt20Mbps
Inter-Access Port Protocol
Wireless Performance Prediction
m
c
Maintenance
b
a
2.4 GHz 802.11b 5.5 Mbps 11 Mbps
5 GHz 802.11a 6, 12, 24 Mbps 9-54 Mbps (opt)
2.4 GHz Frequency Hopped Spread Spectrum 1
Mbps 2 Mbps (optional)
2.4 GHz Direct Sequence Spread Spectrum 1 Mbps 2
Mbps
Infra-Red 1 Mbps 2 Mbps (opt)
d
Regulatory Updates
International Standard ISO/IEC 8802-11
1999 Completed additions in green
1999
1997
Published as IEEE Standard IEEE Std.
802.11-1997 Initial capabilities in White
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Archive, Mailing Lists, URL

• 802.11 Web Site www.ieee802.org/11/
• Members Site www.802wirelessworld.com
• Email Reflectors
• Working Group stds-802-11_at_listsev.ieee.org
• Task Group e stds-802-11-tge_at_listsev.ieee.org
• Task Group k stds-802-11-tgk_at_listsev.ieee.org
• Task Group m stds-802-11-tgm_at_listsev.ieee.org
• Task Group n stds-802-11-tgn_at_listsev.ieee.org
• Task Group p stds-802-11-tgp_at_listsev.ieee.org
• Task Group r stds-802-11-tgr_at_listsev.ieee.org
• Task Group s stds-802-11-tgs_at_listsev.ieee.org
• Task Group t stds-802-11-tgt_at_listsev.ieee.org
• The Email Reflectors are closed and restricted to
  those on the list to reduce SPAM
• Membership of all 802.11 reflectors is strictly
  controlled and adheres to the current WG Policies
  and Procedures
• To send to the list you must use your exact email
  address that is subscribed as the From address

To be added to the IEEE 802.11 WG mailing lists,
please review http//www.ieee802.org/11/Email_Subs
cribe.html
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Back-Up Material

• 802.11 WLANs Working Group
• November 14th-19th, 2004
• San Antonio, TX, USA

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Archive, Mailing Lists, URL

• 802.11 Web Site www.ieee802.org/11/
• Members Site www.802wirelessworld.com
• Email Reflectors
• Working Group stds-802-11_at_listsev.ieee.org
• Task Group e stds-802-11-tge_at_listsev.ieee.org
• Task Group k stds-802-11-tgk_at_listsev.ieee.org
• Task Group m stds-802-11-tgm_at_listsev.ieee.org
• Task Group n stds-802-11-tgn_at_listsev.ieee.org
• Task Group p stds-802-11-tgp_at_listsev.ieee.org
• Task Group r stds-802-11-tgr_at_listsev.ieee.org
• Task Group s stds-802-11-tgs_at_listsev.ieee.org
• Task Group t stds-802-11-tgt_at_listsev.ieee.org
• The Email Reflectors are closed and restricted to
  those on the list to reduce SPAM
• Membership of all 802.11 reflectors is strictly
  controlled and adheres to the current WG Policies
  and Procedures
• To send to the list you must use your exact email
  address that is subscribed as the From address

To be added to the IEEE 802.11 WG mailing lists,
please review http//www.ieee802.org/11/Email_Subs
cribe.html
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