Title :
Sequences with exponentially vanishing and signs alternating partial auto-correlation function are not optimal for asynchronous DS-CDMA systems
Author :
Cao, Ming-Wei ; Wang, Mei
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing
Abstract :
The performance of spreading sequences for asynchronous direct-sequence code division multiple access (DS-CDMA) systems is analyzed. Then the sequences with exponentially vanishing and signs alternating partial autocorrelation function prove to be not the optimal spreading sequences for asynchronous DS-CDMA systems.
Keywords :
code division multiple access; spread spectrum communication; asynchronous DS-CDMA systems; direct-sequence code division multiple access systems; exponentially vanishing sequences; optimal spreading sequences; signs alternating partial auto-correlation function; spreading sequences; Autocorrelation; Bit error rate; Gaussian noise; Information technology; Laboratories; Linear feedback shift registers; Mobile communication; Multiaccess communication; Multiple access interference; Performance analysis;
Conference_Titel :
Communication Technology, 2006. ICCT '06. International Conference on
Conference_Location :
Guilin
Print_ISBN :
1-4244-0800-8
Electronic_ISBN :
1-4244-0801-6
DOI :
10.1109/ICCT.2006.342041
