Title :
A study on ZCZ-CDMA systems in Short-Range Wireless communications
Author :
Huang, Jincheng ; Matsufuji, Shinya ; Matsumoto, Takahiro ; Kuroyanagi, Noriyoshi
Author_Institution :
Grad. Sch. of Sci. & Eng., Yamaguchi Univ., Ube, Japan
Abstract :
ZCZ-CDMA systems, which can remove co-channel interference by means of synchronization control and use of ZCZ codes, are useful for Short-Range Wireless communications. This paper investigates BER performance on ZCZ-CDMA systems using ASK, PSK, and BFSK modulations. This paper proposes a ZCZ-CDMA demodulation using signals which result from the combination of the preceding signal and the delayed signal. Because the preceding signal and delayed signal contain the same information, the path diversity gain is obtained by combining them. Computer simulations confirm that the BER performance is improved by combining the desired signals over Multipath fading channels.
Keywords :
amplitude shift keying; code division multiple access; demodulation; error statistics; fading channels; multipath channels; phase shift keying; synchronisation; ASK; BER performance; BFSK modulations; PSK; ZCZ codes; ZCZ-CDMA demodulation; ZCZ-CDMA systems; cochannel interference; computer simulations; delayed signal; multipath fading channels; path diversity gain; preceding signal; short-range wireless communications; synchronization control; Amplitude shift keying; Bit error rate; Communication system control; Control systems; Delay; Demodulation; Diversity methods; Interchannel interference; Phase shift keying; Wireless communication; BER performance; CDMA; ZCZ; path diversity gain; short-range communications;
Conference_Titel :
Communications (MICC), 2009 IEEE 9th Malaysia International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-5531-7
DOI :
10.1109/MICC.2009.5431434
