Title :
Constructions of ZCZ Sequences over 16-QAM Constellation Based on Binary ZCZ Sequences
Author :
Zeng, Fanxin ; Zeng, Xiaoping ; Zhang, Zhenyu ; Xuan, Guixin
Author_Institution :
Coll. of Commun. Eng., Chongqing Univ., Chongqing, China
Abstract :
The spread-spectrum communication systems making use of the spreading sequences over the QAM constellation are with high transmission data rate. In order to satisfy the above mentioned systems´ requirement, the ZCZ sequences over 16-QAM constellation are discussed and three constructions for producing such sequences are presented from the known binary ZCZ sequences. Moreover, if the binary ZCZ sequences employed are optimal, the resultant constructions I and II are also optimal under their own conditions.
Keywords :
binary sequences; quadrature amplitude modulation; spread spectrum communication; 16-QAM constellation; binary ZCZ sequence; binary zero-correlation-zone sequence; high transmission data rate; spread-spectrum communication system; spreading sequence; Correlation; Educational institutions; Interchannel interference; Multiaccess communication; Phase shift keying; Quadrature amplitude modulation;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6250-6
DOI :
10.1109/wicom.2011.6040045
