TY - JOUR
T1 - Multiuser detection in impulsive channels
AU - Poor, H. Vincent
AU - Tanda, Mario
N1 - Funding Information:
Advanced signal processing techniques for enhancing the performance of non-orthogonal signaling schemes for multiple-access communications fall under the category of multiuser detection \[23\], which refer to optimum or near-optimum demodulation in such situations. By and large, the research in this area has focused on the situation in which the ambient noise is additive white Gaussian noise. This has been a suitable model since the focus has been on the mitigation of the most severe noise source, the multiple-access interference (MA\[).H owever, since multiuser detection techniques are *This research was supported in part by the U. S. National Science Foundation under Grant NCR-9613108. **Electrical Engineering Department, Princeton University, Princeton, NJ 08544, e-mail: poor@ee.princeton.edu ***Universith di Napoli Federico II Dipartimento di ingegneria Elettronica e delle Telecomunicazioni,V ia Claudio 21 1-80125, Napoli, Italy, e-mail: tanda@cds.unina.it
PY - 1999/7
Y1 - 1999/7
N2 - The present paper deals with the problem of data detection in direct-sequence code-division multiple-access (CDMA) systems with non-Gaussian ambient noise. This issue arises in practical situations because many physical channels in which multiple-access communications is applied are known to be decidedly non-Gaussian, due largely to impulsive phenomena. (Such channels include urban and indoor radio channels, and underwater acoustic-modem channels). The optimum multiuser detector for the additive noise channel model is derived, and several suboptimal multiuser detectors are proposed. Moreover, for performance comparison purposes the robust multiuser detector, recently proposed in the literature, is also considered.
AB - The present paper deals with the problem of data detection in direct-sequence code-division multiple-access (CDMA) systems with non-Gaussian ambient noise. This issue arises in practical situations because many physical channels in which multiple-access communications is applied are known to be decidedly non-Gaussian, due largely to impulsive phenomena. (Such channels include urban and indoor radio channels, and underwater acoustic-modem channels). The optimum multiuser detector for the additive noise channel model is derived, and several suboptimal multiuser detectors are proposed. Moreover, for performance comparison purposes the robust multiuser detector, recently proposed in the literature, is also considered.
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M3 - Article
AN - SCOPUS:0032594201
SN - 0003-4347
VL - 54
SP - 392
EP - 400
JO - Annales des Telecommunications
JF - Annales des Telecommunications
IS - 7
ER -