The tutorial rules are explained in the 802 Chair's Tutorial Guidelines (part of the IEEE 802 LMSC Guidelines).
To propose a tutorial, submit the IEEE 802 LMSC Official Tutorial Request Form to the Working Group Chair with a request that the proposal be forwarded to the 802 Executive Committee.
Slides of previous 802 tutorials are cataloged on the 802 tutorial page.
List of 802.16 Tutorials at 802 LMSC Plenary Sessions:
Abtract and Speaker Details
Steve Dick, InterDigital Communications
Avi Freedman, Hexagon System Engineering
Joe Kwak, InterDigital Communications (T1P1 Representative)
Bob O'Hara, Black Storm Networks (Editor, P802.11F Inter-Access Point Protocol)
Richard Paine, Boeing (Chair, 802.11 Radio Resource Measurement Study Group)
Charles Perkins, Nokia (Editor of numerous IEEE IP Mobility documents)
TK Tan, Philips Semiconductors (Chair, Wireless LAN Interworking Group [802/ETSI/ARIB])
In traditional cellular networks, handoff of a terminal from one base station to another is a critical function to support mobile devices. Since such handoff is handled primarily at network Layers 3 and 4, it is not directly supported by IEEE 802 standards, which specify only Layers 1 and 2. As handoff is becoming increasingly important for 802 wireless standards, this tutorial explores the general issue of handoff and the means by which it is achieved in cellular networks and in IP Mobility specifications. It also explores the means by which 802 standards might interface with higher layer mechanisms and thereby support handoff specified at higher layers. Since the focus is on the direct support of higher layer functionality, the general approach is that a single 802 handoff interface might be implemented for all 802 devices. This would allow handoff among mixed 802 networks as well to and from non-802 systems.
Wayne Pleasant, Telaxis Communications
Doug Lockie, Endwave
The upper millimeter-wave bands, typically 40 to 320 GHz, are quickly emerging as the bands of choice for high-speed multi-gigabit communications services. Historically significant uses of this technology have primarily been focused on government applications but, with the emergence of lower cost devices, commercial opportunities abound. This presentation will cover technology from the device to the system level, with focus on the current state of the art as well as future concepts. The data focus will be on legacy applications like SDH/PDH as well as Gigabit Ethernet and fiber channel transport. The current status of the regulatory environment will be discussed, with particular emphasis on the international harmonization of frequency bands and standards.
David Zufall, Nextel Communications, Inc.
Rajiv Laroia, Flarion Technologies
Ruben Montoya, Cisco Systems
Alan O'Neill, Flarion Technologies
Jim Mann, Compaq Computer Corp.
User experience with broadband access to the Internet and corporate intranets via high-speed wireline technologies and via 802.11 LANs have raised the user's expectations of what should be achievable in a fully mobile environment. Applications that flourish in the high speed environment, e.g. peer-to-peer networking, gaming, m-commerce, etc., can then become ubiquitous. The tutorial session consists of presentations focusing on the requirements needed to support transparent access to Internet and intranet services and the technological feasibility of realizing these requirements with OFDM technology.
The primary objective of the tutorial is to drive toward the formation of an
Executive Committee Study Group to develop a project proposal addressing the
development of a standard for a Wireless Broadband IP Data Air Interface in
the 450 MHz to 3 GHz Licensed Spectrum and Supporting Vehicular Mobility.
Roger B. Marks, NIST
Carl Eklund, Nokia
Ken Stanwood, Ensemble Communications Inc.
Stanley Wang, Ensemble Communications Inc.
The IEEE 802.16 Working Group on Broadband Wireless Access has virtually completed IEEE Standard 802.16, the core WirelessMAN standard. This adds a new and fundamentally different MAC to the 802 portfolio. The 802.16 MAC supports a metropolitan area network, not a local area network. It assumes a point-to-multipoint topology, with a controlling base station that connects subscriber stations not to each other but to various public networks linked to the base station. It is a connection-oriented MAC that carries arbitrary protocols transparently, with full Quality of Service support. It places great emphasis on mechanisms for efficient bandwidth allocation, but it leaves the specific implementation of scheduling mechanisms to the vendor or operator. A privacy sublayer, using an authenticated key management protocol, provides encryption and protection from theft of service.
In this tutorial, we provide an overview of the 802.16 MAC. We also summarize some of the
MAC enhancements in development under amendment PARs 802.16a and 802.16b.
Presentation materials must follow the rules of the 802.16 Presentation Cover Sheet. In particular, logos and other unnecessary commercial graphics are not permitted. The 802.16 Presentation Cover Sheet is required if the authors intend to submit the material for posting to the web.
To have a presentation scheduled on the agenda, request a specific amount of time from the 802.16 Chair. Include with your request a title and an abstract. Also submit presentation slides, if available. The Chair intends to fulfil requests on a first-come, first served basis. However, the Chair may choose to limit the duration of presentations based on allowable time. The Chair may also refuse presentations on grounds of overly commercial content.
Announcement of Agenda
802.16 will notify session attendees of the Tutorial Open Forum agenda so that they may chose which presentations to attend.
The Tutorial Open Forum is not an official 802.16 meeting. Attendance will not be recorded.
List of 802.16 Tutorials:
Session #18 Tutorial: 12 March 2002
802.16 MAC Layer Mesh Extensions Overview
Dave Beyer, Carl Eklund, Mika Kasslin, and Nico van Waes
Session #11, Open Forum Tutorial #1: 22 January 2001, 7:00-8:00 pm
Frequency Domain Equalization for 2-11 GHz Broadband Wireless Systems
Dept. of Systems and Computer Engineering
Broadband Wireless Solutions
Broadband wireless systems deployed in outdoor non-line of sight environments may encounter delay spreads of over 5 to 10 _s - which can cause potential intersymbol interference over 50 or more data symbol intervals. OFDM (orthogonal frequency division multiplexing) has been suggested to combat this ISI problem with reasonable complexity. However OFDM systems generate high transmitted peak-to-average ratios and are sensitive to phase noise; this can increase RF subsystem cost and complexity.
In this tutorial we survey recent advances in frequency domain equalization (FDE) for single carrier (SC) systems. SC modulation systems have lower peak-to average-ratios than OFDM, and when combined with FDE, their performance is at least as good as OFDM systems (in some cases better); furthermore, they have the same reduced signal processing complexity enjoyed by OFDM systems.
We introduce linear and decision feedback equalization versions of SC-FDE, and present some comparative performance results. We briefly explore the possible interoperability of OFDM and SC-FDE systems, and also present a proposal for reducing subscriber unit cost and complexity by employing OFDM in the downlink and SC-FDE in the uplink.
Session #7, Open Forum Tutorial #1: 1 May 2000, 7:00-8:00 pm
Turbo Product Code Tutorial
Dave Williams, Advanced Hardware Architectures
In this tutorial, I cover basic theory of turbo codes comparing various FEC technologies including Reed-Solomon, convolutional codes, Turbo Convolutional Codes, and Turbo Product Codes. I also compare TPCs against TCM concatenated with Reed-Solomon coding.
The tutorial also covers the use of TPCs with higher order modulation such as QAM and m-ary PSK for the purpose of bandwidth reduction. Other topics include burst error correction, tradeoffs between block size, code rates and soft decision resolution.
In its entirety, this tutorial will take 90 minutes, including time for audience interaction, questions, and discussion.
Session #7, Open Forum Tutorial #2: 2 May 2000, 8:30-10:00 pm
Coded Orthogonal Frequency Division Multiple Access
Zion Hadad, Runcom Ltd.
In this tutorial I shell discuss the Coded Orthogonal Frequency Division Multiple Access (COFDMA) technique. The tutorial will contain explanation on the OFDM basics and coverage options, including Single Frequency Network (SFN) and its possible application for fixed and mobile applications. I discuss several possible coding and multiplexing implementations, including scenarios for multiple access and bandwidth on demand allocations. I also present a newly innovative approach for multiple access allocation using Reed Solomon series, which allows a better Carrier Allocation.
Session #5 Open Forum Tutorial: 13 January 2000
Turbo Code Tutorial
Moshe Ran, TelesciCOM Ltd.