Multi-rate MC-DS-CDMA with multiuser detections for wireless multimedia communications
Resource
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Journal
55th Vehicular Technology Conference, 2002. VTC Spring 2002
Pages
-
Date Issued
2002-05
Date
2002-05
Author(s)
Fu, Po-Wei
DOI
N/A
Abstract
In this paper, we study multi-rate transmission for MC-DS-CDMA systems based on the concepts of multi-code (MC) access and variable-spreading-length (VSL) code access. The general system model is derived for multi-rate MC-DS-CDMA systems of either multi-rate access and multiuser detection (MUD) are proposed thereof. We analyze the characteristics of multi-rate MC-DS-CDMA signals and investigate the behavior of the MUD. Compared studies and simulations among the proposed MUD and access methods suggest VSL-code access with the proposed LMMSE detection to multi-rate MC-DS-CDMA systems, especially for transceiving high-rate users.
Type
journal article
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