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Performance of Joint User Cooperation Diversity and Successive Interference Cancellation for CDMA

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posted on 2023-06-07, 21:30 authored by I Shakya, Falah AliFalah Ali, E Stipidis
In this paper, we propose a new approach of providing diversity in uplink CDMA with practical multiuser interference environments, by employing a joint scheme consisting of user cooperation transmitter diversity and a successive interference cancellation (SIC) at the base station receiver. Under the proposed cooperation scheme, in the first signal period the users broadcast their data using their own spreading sequences, and in the second period their partners receiving the broadcasted signals, forward the detected data with the users spreading sequences. The new SIC receiver removes the multiple access inference (MAI) in serial manner and also combines signals from the desired cooperating users for data detection. Bit error simulation results are shown which confirm that under all user cooperation conditions the proposed joint Cooperative SIC offers significant improvement in the error performance compared to a SIC without cooperation under various system load and near-far channel conditions.

History

Publication status

  • Published

Publisher

IET

Pages

4.0

Presentation Type

  • paper

Event name

Smart Antennas and Cooperative Communications

Event location

IET, Savoy Place, London, 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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