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Capacity Improvement of DS-CDMA Mobile Satellite Communication System Using the Adaptive Duplicated Filters and Interference Canceller

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2 Author(s)
Nougarou, F. ; Electr. & Comput. Eng. Dept., Univ. du Quebec a Trois-Rivieres, Trois-Rivieres, QC, Canada ; Massicotte, D.

An efficient adaptive multistage multiuser detection (MUD) method known as adaptive duplicated filters and interference canceller (ADIC), is presented in the context of an uplink terrestrial mobile network DS-CDMA. The performance of this proposed MUD scheme has been proven equivalent to a DF soft MPIC while affording complexity reductions by a factor of 4 (64 kbps). In this paper, an ADIC receiver is applied to yield a link satellite mobile environment based on DS-CDMA systems and able to outperform DF soft MPIC and soft MPIC methods using complexity reduction. At 64 kbps, compared to DF soft MPIC, soft MPIC and Rake receivers, ADIC MUD allows capacity increases of 8%, 30%, and 160% respectively.

Published in:

Advances in Satellite and Space Communications, 2009. SPACOMM 2009. First International Conference on

Date of Conference:

20-25 July 2009