Performance Analysis of MIMO MC-DS/CDMA System Using Chaotic Spreading Sequence
V. Nagarajan, P. Dananjayan · International Journal of Computer and Electrical Engineering · 2010
This paper presents a novel chaotic spreading sequence for multiple input multiple output multi-carrier direct sequence code division multiple access (MIMO MC-DS/CDMA) systems.The effect of multiple access interference can be mitigated by choosing the spreading sequences with appropriate cross-correlation properties.The performance of the system is analysed in multiuser scenario with the aid of simulation.The simulation results show that the proposed chaotic code spreading approach achieves a significant improvement in system utility and combats multiple access interference (MAI).The analysis reveals that the proposed system achieves significant performance improvement compared to Walsh Hadamard spreading code in MIMO MC-DS/CDMA systems.