Performance enhancement in MIMO self-encoded spread spectrum systems by using multiple codes

Authors:
Shichuan Ma;Lim Nguyen;Won Mee Jang;Yaoqing Yang
Affiliations:
Department of Computer and Electronics Engineering, University of Nebraska-Lincoln, Omaha, NE;Department of Computer and Electronics Engineering, University of Nebraska-Lincoln, Omaha, NE;Department of Computer and Electronics Engineering, University of Nebraska-Lincoln, Omaha, NE;Department of Computer and Electronics Engineering, University of Nebraska-Lincoln, Omaha, NE
Venue:
Sarnoff'10 Proceedings of the 33rd IEEE conference on Sarnoff
Year:
2010

Citing 2
Cited 1

Introduction to Space-Time Wireless Communications

Introduction to Space-Time Wireless Communications
A simple transmit diversity technique for wireless communications

IEEE Journal on Selected Areas in Communications

MIMO self-encoded spread spectrum with iterative detection over Rayleigh fading channels

Journal of Electrical and Computer Engineering - Special issue on iterative signal processing in communications

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Abstract

Self-encoded spread spectrum (SESS) is a novel modulation technique that acquires its spreading sequence from the randomness of the input data stream. In recent work, we incorporated SESS into MIMO system and showed that the system can achieve diversities in both time and space domains. In this paper, we propose a novel multi-code MIMO-SESS system that not only can achieve spatial and temporal diversities, but also can double the throughput compared with previous scheme. Simulation results demonstrate that the performance of the proposed multi-code MIMO-SESS system achieves about 6 dB of gain at 10-4 BER from the combined time and spatial diversities over an Alamouti scheme-based MIMO system under Rayleigh fading channels.