Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

Low complexity channel shortening technique applied to MB-OFDM UWB systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Ragoubi, K. ; INSA Rennes, Eur. Univ. of Brittany (UEB), Rennes, France ; Helard, M. ; Crussiere, M.

In this paper, we investigate the use of a channel shortening filter (CSF) for multiband orthogonal frequency division multiplexing ultra wideband (MB-OFDM UWB) communication systems. Indoor wideband channels are known as rich scattering environments resulting in potentially large delay spread. When the delay spread exceeds the guard interval length, intersymbol interference (ISI) and intercarrier interference (ICI) may occur. The aim of this paper is to reduce the time dispersion of the indoor wideband channels while not increasing the system complexity compared to the conventional channel shortening techniques. We propose to divide the CSF into an energy concentration and a tail suppression parts. We then introduce an algorithm to efficiently compute the coefficients of each CSF part. We show that the proposed method can considerably improve the system performance at high data rate as well as the computational complexity compared to classical channel shortening designs.

Published in:

Signal Processing and Communication Systems (ICSPCS), 2010 4th International Conference on

Date of Conference:

13-15 Dec. 2010