Title :
Diversity combining for MT-CDMA signals in a fading channel
Author :
Rahman, Quazi Mehbubar ; Sesay, Abu B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
Abstract :
A multi-tone code division multiple access (MT-CDMA) system with post-detection diversity combining is analyzed. The analysis is presented in terms of average bit error rate (BER). The modulator uses differential quadrature phase shift keying (DQPSK) signaling over a slowly Rician fading and frequency selective channel in the indoor environment. Here, the influence of the order of diversity and number of tones is studied for given bandwidth (BW), bit rate and transmitter power. The paper also compares the BER performance between differential binary phase shift keying (DBPSK) and DQPSK based MT-CDMA systems
Keywords :
Rician channels; code division multiple access; differential phase shift keying; diversity reception; error statistics; indoor radio; multipath channels; multiuser channels; quadrature phase shift keying; signal detection; BER performance; DQPSK signaling; MT-CDMA signals; MT-CDMA systems; average BER; bandwidth; bit error rate; differential binary phase shift keying; differential quadrature phase shift keying; diversity combining; diversity order; fading channel; frequency selective channel; indoor environment; multi-tone code division multiple access; post-detection diversity combining; slowly Rician fading channel; transmitter power; Bandwidth; Bit error rate; Differential quadrature phase shift keying; Diversity reception; Fading; Frequency shift keying; Indoor environments; Multiaccess communication; Phase modulation; Rician channels;
Conference_Titel :
Communications, Computers and signal Processing, 2001. PACRIM. 2001 IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-7080-5
DOI :
10.1109/PACRIM.2001.953542
