Multicode DS/CDMA Systems Transmitter Adaptation Based on Optimal Sequence
HE Xian-gang · Journal of Chongqing University of Posts and Telecommunications · 2003
To improve the performance of multicode DS/CDMA, an adaptation method of optimal sequence and power control is disussed in this paper, which can suppress multi-path and multi-access interference. In this method,a particular algorithm with high convergence and low calculation complexity is used.With the algorithm,good spread sequences and receiver despread sequences are obtained, which can maximize signal- interference-noise-rate(SINR), suppress multi-access interference, and get the multi-path diversity gain. Based on the optimal sequence and allocation transmitter power, the receiver SINR is improved and reaches the expected SINR, which satisfies the quality of servers in the system.