A promising set of spreading sequences to mitigate MAI effects in MIMO STS systems

Authors

Anh Tuyen Le, University of Wollongong
Le Chung Tran, University of WollongongFollow
Prashan Premaratne, University of WollongongFollow
David Stirling, University of WollongongFollow
Beata J. Wysocki, University of Nebraska, University of WollongongFollow
Tadeusz A. Wysocki, University of Nebraska, University of WollongongFollow
Peter J. Vial, University of WollongongFollow

RIS ID

105414

Publication Details

A. Tuyen. Le, L. Tran, P. Premaratne, D. Stirling, B. Wysocki, T. Wysocki & P. James. Vial, "A promising set of spreading sequences to mitigate MAI effects in MIMO STS systems," in Signal Processing and Communication Systems (ICSPCS), 2015 9th International Conference on, 2015, pp. 1-4.

Abstract

Multiple input, Multiple output space time spreading (MIMO STS) system is a scheme which can provide full diversity gain without extra resource requirements. However, its performance degrades significantly when multiple access interference (MAI) occurs. In order to mitigate MAI effects, we propose a criterion to build a promising set of combination of spreading sequences for users. Simulation results show that the average BER performance of users using this promising set is about thirty percent lower than that of users using another set in case of 64 chip length Walsh-Hadamard code.