Title :
Convolutional Coding Quasi-Synchronous CDMA System Using Real-Valued Self-Orthogonal Finite-Length Sequences
Author :
Le, Jiong ; Tanada, Yoshihiro
Author_Institution :
Graduate Sch. of Sci. & Eng., Yamaguchi Univ., Ube
Abstract :
A set of real-valued self-orthogonal sequences of a zero correlation zone is applied to a variable rate quasi-synchronous CDMA system without interchannel interferences in a limited shift range. In each transmitter, the synchronizing sequence and the multi-rate data are convolved with the user sequence, and quantized to the integer signal. In a receiver, the synchronizing pulse and the data train are detected with suppressed distortions and interferences
Keywords :
code division multiple access; convolutional codes; mobile radio; quantisation (signal); convolutional coding quasisynchronous CDMA system; integer signal quantization; interchannel interferences; real-valued self-orthogonal finite-length sequences; sequence synchronization; zero correlation zone; Autocorrelation; Convolution; Convolutional codes; Frequency synchronization; Interchannel interference; Interference suppression; Intersymbol interference; Multiaccess communication; OFDM; Quantization;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on
Conference_Location :
Wuhan
Print_ISBN :
1-4244-0517-3
DOI :
10.1109/WiCOM.2006.94
