Optimized Selection of Spread Spectrum Sequence for Parallel Combinatory Spread Spectrum Communication
Yang Zhang · Communications technology · 2012
Compared with traditional spread spectrum communication system,parallel combinatory spread spectrum communication system is of more superiorities in efficiency and security.However,the interference between the parallel channels could reduce the transmission reliability of the system.In order to improve the performance of parallel combinatory spread spectrum communication system,suitable spread spectrum sequences for data-sequence mapping should be selected from the alternative spread spectrum sequences.Based on analyzing the principle of parallel combinatory spread spectrum communication and for reducing the cross correlation of the receiving terminal,a method for optimizing the selection of the spread spectrum sequences is proposed.The simulation results show this method could effectively reduce the bit error rate of the system and thus improve the reliability of the system.