Performance Evaluation of Orthogonal Multi-level Chaos Shift Keying Modulation Scheme Aided MIMO Wireless Communication System

摘要

In this paper, a comprehensive study has been made on observing the performance of orthogonal multi-level chaos shift keying modulation scheme aided MIMO wireless communication system. The 4 4 multi antenna supported such simulated system incorporates various channel coding (1/2-rated Convolutional, (3, 2) SPC, LDPC and concatenated 1/2-rated Convolutional) and signal detection (MMSE, ZF and MMSE-SIC) techniques. Under scenario of audio signal transmission over AWGN and Rayleigh fading channels with utilization of Chaotic Walsh-Hadamard Transform codes, it is observable that the impact of channel coding concatenation under implementation of MMSE signal detection technique is very much significant in performance enhancement of the presently considered simulated system.