Performance Evaluation of Cooperative ML-IDMA Communications with DF Protocols

Abstract

Relaying and cooperative diversity allow multiple wireless radios to effectively share their antennas and create a virtual antenna array, thereby leveraging the spatial diversity benefits of multiple-input multiple-output antenna systems. In this paper, we consider the bit error rate performance analysis of a cooperative relay communication system on Multi-Layer-IDMA (ML-IDMA) using Maximal-Ratio-Combining (MRC) technique; we examine the effect of layers number on the performance and derive the average bit error probability of the Decode-and-Forward (DF) relay schemes by using the closed-form relay link Signal-to-Noise Ratio (SNR). Based on the analysis, we show that from the simulation results, degradation in the performance is observed when increasing number of layers but on the other hand we saved in the Band Width (BW).