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Improved Successive Interference Cancellation for DS CDMA using constant modulus algorithm

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posted on 2023-06-08, 04:50 authored by I Shakya, Falah AliFalah Ali, E Stipidis
In this paper, we propose an effective design of successive interference cancellation (SIC) multiuser detector for Direct Sequence CDMA using Constant Modulus Algorithm (CMA). The SIC receivers are simple in structure and robust in combating multiple access interference (MAI) and near far effect. However, two of the main practical issues of SIC are the error propagation and imperfect channel estimation. To overcome these problems, we employ a simple adaptive CMA algorithm within SIC despreader to provide reliable estimate of the desired signal amplitude and for mitigating the effect of fading channel. Modeling and simulation of the proposed detector shows impressive single user bound reaching performance in fading channel with AWGN and robustness in different system loading and near far conditions.

History

Publication status

  • Published

Publisher

HW Communications Ltd.

Pages

6.0

Presentation Type

  • paper

Event name

Ninth International Symposium on Communications Theory and Application (ISCTA'07)

Event location

Ambleside, UK

Event type

conference

Department affiliated with

  • Engineering and Design Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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