Title :
MT-CDMA system with two stage maximum likelihood symbol estimation
Author :
Rahman, Quazi Mehbubar ; Sesay, Abu B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Canada
Abstract :
This paper presents a theoretical analysis for two-stage maximum likelihood estimation (TSMLE) based multi-tone code division multiple access (MT-CDMA) system in terms of average bit error rate (BER). The analysis is presented for slowly Rician fading and frequency selective channel in the indoor environment. A model for the computation of average bit error probability is derived for quadrature phase shift keying (QPSK) modulation. The influence of number of tones is studied for given bandwidth (BW), bit rate and transmission power.
Keywords :
OFDM modulation; Rician channels; code division multiple access; error statistics; indoor radio; maximum likelihood estimation; multiuser channels; quadrature phase shift keying; spread spectrum communication; BER; DS-SS; MT-CDMA system; OFDM; QPSK; average bit error probability; average bit error rate; bandwidth; bit rate; code lengths; direct-sequence spread-spectrum; frequency selective channel; indoor environment; multitone code division multiple access; orthogonal frequency division multiplexing; quadrature phase shift keying; slowly Rician fading; transmission power; two stage maximum likelihood symbol estimation; two-stage MLE; Bit error rate; Computational modeling; Error probability; Frequency; Indoor environments; Maximum likelihood estimation; Multiaccess communication; Power system modeling; Quadrature phase shift keying; Rician channels;
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
Print_ISBN :
0-7803-7467-3
DOI :
10.1109/VETECF.2002.1040402
