You are here: silicon.com > Resources > White Papers > Networking and Communications > Mobile and Wireless > Wireless LAN

Wireless LAN White Papers

Adaptive Prediction Iterative Channel Estimation for OFDM Signal Reception in a Frequency Selective Fading Channel

Overview In this paper, pilot-assisted adaptive prediction iterative channel estimation is proposed for the antenna diversity reception of Orthogonal Frequency Division Multiplexing (OFDM) signals. Adaptive prediction filtering is incorporated into iterative channel estimation process with decision feedback and reverse modulation. The filter tap weights are adaptively updated according to changes in the multipath propagation environment. For the adaptation of tap weights, the Normalized Least Mean Square (NLMS) algorithm is applied that uses the noisy instantaneous channel gains obtained by reverse modulation and from pilot symbols as the reference signal. The average Bit Error Rate (BER) performance in a frequency selective fading channel is evaluated by computer simulation for the frequency and time multiplexed pilot cases.

Further White Paper Details
Publisher	Tohoku University	File Format	PDF
Date Published	April 2003
Format	White Papers
Topics	Wireless LAN, Mobile - Wireless Communications

Did you find this white paper useful?

Peter Cochrane's Uncommon Sense: Wireless everything

We now stand to reverse history through electronic sophistication only made commercially possible by recent advances in chip technology. It was the arrival of electronics in the early 1900s that allowed electronic filtering to give us the channel...

Channel:
Comment & Analysis

Safeway: RFID will become "ubiquitous"

Safeway ran an RFID pilot with Unilever last year on 40,000 cases of Lynx deodorant tracking them from the factory through to the shelves of three stores and, in an exclusive interview with silicon.com, Safeway CIO Ric Francis said that while the...

Channel:
IT Director
Tags:
safeway,
rfid

HP kicks off RFID pilot package for business

HP launched three packages that essentially create a shrink-wrapped pilot program when strung together. The retail giant launched a major RFID pilot with eight of its largest suppliers, including HP, earlier this month.

Channel:
Storage

RFID blood-tracking trial planned

NHS Connecting for Health (CfH) is looking to work with one or more trusts in England to pilot a national IT specification for blood tracking. The pilot - due to commence by March 2007 - will test and develop the IT specification for blood tracking...

Channel:
Public Sector
Tags:
rfid

O2: A wannabe BT?

Unlike BT, which is using wi-fi to route calls over a broadband connection, O2 fancies the idea of a mini-GSM reverse-engineered base station instead - the thinking being that the user won't need to upgrade to a new dual-mode device.

Peter Cochrane's Blog: Aerial bombardment

Until that day, we will have to continue the struggle for antenna real estate and sufficient signal quality. Over the past 50 years antenna technology has blossomed beyond recognition with fixed and multi-frequency designs based on regular planar...

Live Webcast: Telecoms 2.0 - Where is telecoms heading?

In this webcast, our panel of experts will review where we are with next generation telecoms in the UK, working through the concept of 'Telecoms 2.0': - Realising the potential of Next Generation Networks - why it isn't just about the technology? - What attributes should firms be looking for in their telco partner? - Is the relationship between telco provider and customer changing? - What things need to happen to make next generation services a reality? - You say you want the supplier to change. Do you want to change too? - What is Telecoms 2.0?

Publisher:
ZDNet UK

Telecom 2.0: Mind over matter

ntl:Telewest Business believes that the role of the telco is evolving. Gone are the days when it was enough to simply focus on circuits and minutes, customers now need a far higher degree of interaction and look for suppliers who will talk business solutions with them.

Publisher:
ntl:Telewest Business

IBM Information Server Change Data Capture

In today's fast-paced world, access to real-time data has never been more important. To be successful, organizations need to be able to report and analyze corporate data quickly and easily, regardless of what applications created the data, what platform they're running on, or what database they're stored in.

Publisher:
IBM

An examination of server consolidation: the trends that can drive efficiencies and help businesses gain a competitive edge

This white paper provides a starting point for organizations contemplating server consolidation. It includes an overview of server consolidation concepts and techniques and provides guidance on methodologies. It also looks at the potential cost savings associated with server consolidation and offers information on how organizations can sustain the advantage they have gained by consolidating their servers.

Publisher:
IBM

Also on silicon.com

Site Navigation:

Wireless LAN White Papers

Adaptive Prediction Iterative Channel Estimation for OFDM Signal Reception in a Frequency Selective Fading Channel

Quick Sitemap Links:

About Us

Search

Blogs

Verticals

Advertising Features

CNET Networks in Europe

CNET Networks in the United States

CNET Networks in Asia Pacific