Title :
Complementary sequence and its anti-interference performance in multi-carrier CDMA system
Author :
Long, Xiuhong ; Zeng, Fanxin ; Zhang, Wenchao ; Sun, Chengchao ; Liang Guo
Author_Institution :
Dept. of Inf. Eng., Chongqing Commun. Inst., Chongqing, China
Abstract :
Complementary sequences are well studied in the communication field for their good correlation properties. Besides being used as spreading sequences, they can also be used for channel estimation, synchronization, reduction of peak-to-average power ratio of symbols, preamble design, sequence design, Target detection and so on. A recursive construction of complementary sequences based on orthogonal matrix and permutation matrix is proposed, which increases the number of complementary sequences in the set by increasing the number of their sub-sequences with the same sequences´ length. Then the anti-interference performance of multi-carrier CDMA (MCCDMA) system based on complementary sequences is simulated, and the obtained results show that it has better anti-interference ability than traditional CDMA system.
Keywords :
code division multiple access; matrix algebra; radiofrequency interference; antiinterference performance; channel estimation; communication field; complementary sequence; correlation property; multicarrier CDMA system; orthogonal matrix; peak-to-average power ratio; permutation matrix; preamble design; sequence design; spreading sequence; synchronization; target detection; Autocorrelation; Channel estimation; Multiaccess communication; Multicarrier code division multiple access; Multiple access interference; Object detection; Power engineering and energy; Sun; MC-CDMA; anti-interference; complementary sequence; recursive construction;
Conference_Titel :
Wireless and Optical Communications Conference (WOCC), 2010 19th Annual
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7597-1
DOI :
10.1109/WOCC.2010.5510645
