Iterated Soft-Decision Interference Cancellation for CDMA (1998)
| Venue: | in Broadband Wireless Communications, Luise and Pupolin, Eds |
| Citations: | 13 - 8 self |
BibTeX
@INPROCEEDINGS{Müller98iteratedsoft-decision,
author = {Ralf R. Müller and Johannes B. Huber},
title = {Iterated Soft-Decision Interference Cancellation for CDMA},
booktitle = {in Broadband Wireless Communications, Luise and Pupolin, Eds},
year = {1998},
pages = {110--115},
publisher = {Springer}
}
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Abstract
. Multiuser detection by iterated soft--decision interference cancellation is known to achieve almost single user performance in low and moderate interference scenarios. In this paper, it is shown how this detection scheme can be further improved by adaptive calculation of the soft--decision rule. This enables a significantly higher number of active users signaling within the same bandwidth to be detected, implying that spectral efficiency is increased. 1 Introduction Code--division multiple--access (CDMA) is a promising multiple--access technique for future mobile communication systems. Its main advantages are firstly a wideband transmitter signal reducing the negative effects of frequency --selective fading, and secondly the fact, that in cellular environments the same carrier frequency can be used in every cell. An important drawback of CDMA systems is the distortion caused by multiple--access interference (MAI). Since the pioneering work of [1], who has shown that single user perf...
