Blind user detection in doubly-dispersive DS/CDMA channels
Information Theory
2010-02-17 v1 math.IT
Abstract
In this work, we consider the problem of detecting the presence of a new user in a direct-sequence/code-division-multiple-access (DS/CDMA) system with a doubly-dispersive fading channel, and we propose a novel blind detection strategy which only requires knowledge of the spreading code of the user to be detected, but no prior information as to the time-varying channel impulse response and the structure of the multiaccess interference. The proposed detector has a bounded constant false alarm rate (CFAR) under the design assumptions, while providing satisfactory detection performance even in the presence of strong cochannel interference and high user mobility.
Cite
@article{arxiv.0909.3226,
title = {Blind user detection in doubly-dispersive DS/CDMA channels},
author = {Stefano Buzzi and Luca Venturino and Alessio Zappone and Antonio De Maio},
journal= {arXiv preprint arXiv:0909.3226},
year = {2010}
}
Comments
Accepted for publication on IEEE Transactions on Signal Processing