Noise interference and multiple access interference are the main impairment to the performance of DS/CDMA communication system.This letter presents that OverSampled Chaotic Map(OSCM)binary sequences are secure as spre...Noise interference and multiple access interference are the main impairment to the performance of DS/CDMA communication system.This letter presents that OverSampled Chaotic Map(OSCM)binary sequences are secure as spreading sequences,and based on the optimal quantizing method,the BER performance of the system has been derived in detail,the internal relationships among the number of users,the power of noise and the lengh of code chips are revealed in mathematical formulae.The performance of the system can be improved by employing these formulae.Numerical results conform the efficiency of discussion in this letter.展开更多
文摘Noise interference and multiple access interference are the main impairment to the performance of DS/CDMA communication system.This letter presents that OverSampled Chaotic Map(OSCM)binary sequences are secure as spreading sequences,and based on the optimal quantizing method,the BER performance of the system has been derived in detail,the internal relationships among the number of users,the power of noise and the lengh of code chips are revealed in mathematical formulae.The performance of the system can be improved by employing these formulae.Numerical results conform the efficiency of discussion in this letter.
