Computer Science – Information Theory
Scientific paper
2009-09-17
IEEE Transactions on Signal Processing, Vol. 58, No. 3, pp. 1446 - 1451, March 2010
Computer Science
Information Theory
Accepted for publication on IEEE Transactions on Signal Processing
Scientific paper
10.1109/TSP.2009.2033001
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.
Buzzi Stefano
Maio Antonio de
Venturino Luca
Zappone Alessio
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