Title :
Grouped complementary codes for multicarrier CDMA systems
Author :
Zhang, Zhenyu ; Zeng, Fanxin ; Chen, Wei ; Zhiyong Shi
Author_Institution :
Coll. of Commun. Eng., Chongqing Univ., Chongqing, China
fDate :
June 28 2009-July 3 2009
Abstract :
A general construction of grouped complementary (GC) codes for multicarrier CDMA systems is proposed. The construction is based on perfect codes which have ideal periodic autocorrelation function. Different from traditional complementary codes, the constructed GC codes are divided into multiple code groups. The codes in the same group have ideal correlation properties and those from the different groups have almost ideal correlation properties. The system bit error rate (BER) performance is presented in comparison with complete complementary (CC) codes and results show that the proposed GC codes can support much more users than CC codes while the good performance is approximately maintained.
Keywords :
binary codes; code division multiple access; error statistics; bit error rate performance; complete complementary codes; grouped complementary codes; multicarrier CDMA systems; multiple code groups; periodic autocorrelation function; Algorithm design and analysis; Autocorrelation; Binary codes; Bit error rate; Educational institutions; Equations; Multiaccess communication; Multiple access interference; Performance gain; System performance;
Conference_Titel :
Information Theory, 2009. ISIT 2009. IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-4312-3
Electronic_ISBN :
978-1-4244-4313-0
DOI :
10.1109/ISIT.2009.5205753
