Title :
On a Convoluted-Time and Code Division Multiple Access Communication System Using Complete Complementary Codes
Author :
Kojima, Tetsuya ; Aono, Masahiro
Author_Institution :
Tokyo Nat. Coll. of Technol., Tokyo
Abstract :
Signal design methods for the approximately synchronized CDMA systems based on complete complementary codes have been proposed. It has been shown that both the information transmission rate and the frequency usage rate can be increased by these kinds of CDMA systems. However, there are two big problems, that is, the small cell capacity and the large signal power. In this paper, we consider another communication system based on complete complementary codes, which is called the convoluted-time and code division multiple access (CT-CDMA) system. We give both the merits and the shortcomings of this method, and discuss the way to apply this system into some actual communication applications.
Keywords :
code division multiple access; convolutional codes; time division multiple access; CT-CDMA communication system; complete complementary codes; convoluted-time-code division multiple access; frequency usage rate; information transmission rate; signal design method; Autocorrelation; Binary sequences; Convolution; Educational institutions; Fading; Frequency estimation; Frequency synchronization; Interchannel interference; Multiaccess communication; Signal design; CDMA; CT-CDMA; complete complementary code;
Conference_Titel :
Signal Design and Its Applications in Communications, 2007. IWSDA 2007. 3rd International Workshop on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-1074-3
Electronic_ISBN :
978-1-4244-1074-3
DOI :
10.1109/IWSDA.2007.4408384
