@article{MAKHILLJEAS201813615824, title = {A Performance Evaluation of CDMA/MIMO Communication System Using Permutation Spreading}, journal = {Journal of Engineering and Applied Sciences}, volume = {13}, number = {6}, pages = {1526-1530}, year = {2018}, issn = {1816-949x}, doi = {jeasci.2018.1526.1530}, url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2018.1526.1530}, author = {Umasankar,K. and}, keywords = {CDMA,MIMO,fading,Bit Error Rate (BER),compared,Rayleigh}, abstract = {In this study, we propose Code Division Multiple Access (CDMA) systems employing this technique, the calculated parity bits are used to select a spreading sequence from a set of mutually orthogonal spreading sequences. This technique was extended to CDMA systems using Multiple Input Multiple Output (MIMO) techniques. We compare the performance of the two techniques for MIMO-CDMA systems operating on frequency-flat slowly Rayleigh fading channels. The new designs improve the Bit Error Rate (BER) compared to MIMO-CDMA systems that use spreading permutations based on T-designs. This BER improvement comes without any increase in system complexity.} }