TY - JOUR
T1 - Inter-group complementary codes for interference-resistant CDMA wireless communications
AU - Li, Jing
AU - Huang, Aiping
AU - Guizani, Mohsen
AU - Chen, Hsiao Hwa
N1 - Funding Information:
The authors would like to acknowledge the research grants from the National Natural Science Foundation of China (60472080), the SRFDP project of the Ministry of Education of China (20060335063), and the National Science Council of Taiwan (NSC96-2221-E-110-035 and NSC96-2221-E-110-050). They would like also to thank the anonymous reviewers for their constructive comments.
PY - 2008/1
Y1 - 2008/1
N2 - Spreading code plays an extremely important role on the overall performance of a CDMA system. The correlation properties and available number of spreading codes determine the interference-resist capability as well as system capacity. In this paper, we analyze the characteristics and limitations of traditional and recently reported spreading codes. Based on the analysis, we propose a new code design approach which will be used to generate inter-group complementary (IGC) codes. The correlation functions of the IGC codes possess definite and bi-valued interference-free windows. In addition, a corresponding code assignment algorithm and spreading scheme will be introduced to take advantage of the desirable properties of the IGC codes for their applications in CDMA systems. Both theoretical analysis and simulation results show that an IGC-CDMA system is interference-resistant and capable to offer a high spectral efficiency if compared with the ones based on other spreading codes.
AB - Spreading code plays an extremely important role on the overall performance of a CDMA system. The correlation properties and available number of spreading codes determine the interference-resist capability as well as system capacity. In this paper, we analyze the characteristics and limitations of traditional and recently reported spreading codes. Based on the analysis, we propose a new code design approach which will be used to generate inter-group complementary (IGC) codes. The correlation functions of the IGC codes possess definite and bi-valued interference-free windows. In addition, a corresponding code assignment algorithm and spreading scheme will be introduced to take advantage of the desirable properties of the IGC codes for their applications in CDMA systems. Both theoretical analysis and simulation results show that an IGC-CDMA system is interference-resistant and capable to offer a high spectral efficiency if compared with the ones based on other spreading codes.
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U2 - 10.1109/TWC.2008.060414
DO - 10.1109/TWC.2008.060414
M3 - Article
AN - SCOPUS:38349094477
SN - 1536-1276
VL - 7
SP - 166
EP - 174
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 1
ER -