TY  - JOUR
T1  - A Performance Evaluation of CDMA/MIMO Communication System Using
Permutation Spreading
AU - Chilumuri, Umasankar AU - Haribabu, K. AU - Prasad, S.V.S. 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 6
SP  - 1526
EP  - 1530
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.1526.1530
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.1526.1530
KW  - CDMA
KW  -MIMO
KW  -fading
KW  -Bit Error Rate (BER)
KW  -compared
KW  -Rayleigh
AB  - 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.
ER  -