By Topic

A distributed algorithm for dynamic sub-channel assignment in a multiuser OFDM communication system

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
$33 $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

2 Author(s)
A. Seyedi ; Dept. of Electr. Comput. & Syst. Eng., Rensselaer Polytech. Inst., Troy, NY, USA ; G. J. Saulnier

We propose and study a sub-channel selective OFDM spread spectrum system and a distributed algorithm for sub-channel allocation. The proposed system is a combination of OFDMA and OFDM-CDMA systems. For each user the maximal ratio combining weights of the sub-channels are used as channel information. The algorithm implements a simple but sub-optimal version of the water filling power allocation, thus increasing the transmitter power efficiency and decreasing the interference generated for other users. This algorithm also provides the ability to offer different quality of service (QoS) levels for different users. The convergence of the algorithm and its performance have been studied through simulation. The proposed system has significant advantage in BER performance, over the conventional OFDM-SS system

Published in:

Statistical Signal Processing, 2001. Proceedings of the 11th IEEE Signal Processing Workshop on

Date of Conference: