TY - GEN
T1 - Study of DS-CDMA wireless communication over a Nakagami-m multipath fading channel in presence of imperfect power control
AU - Hossain, Md Farhad
AU - Majumder, Satya Prasad
PY - 2005
Y1 - 2005
N2 - The reverse link performance of direct sequence code division multiple access (DS-CDMA) system in wireless communication over a frequency selective multipath fading channel has been investigated in this paper. The channel has been modeled as Nakagami-m distributed frequency selective multipath fading channel. A conventional correlator type receiver has been considered for the analysis. Noise is taken as additive white Gaussian noise (AWGN) with two sided power spectral density N0/2. To model multiple access interference (MAI), standard Gaussian approximation (SGA) has been considered in this paper. To mitigate the near-far problem, a power control scheme, but imperfect has been assumed in this paper. The bit error rate (BER) expression for the system has been derived and simulated by varying number of users, number of fading path, processing gain, fading parameter, SNR per bit Eb/N0 and variation in the amplitude of the received signal. The analysis shows that as the number of simultaneous active user, the number of fading path and the variation in the power of the received signal increases, the BER of the system increases indicating the performance degradation. As the value of the processing gain, the ratio Eb/N0 and the fading parameter increases, the BER performance of the system improves.
AB - The reverse link performance of direct sequence code division multiple access (DS-CDMA) system in wireless communication over a frequency selective multipath fading channel has been investigated in this paper. The channel has been modeled as Nakagami-m distributed frequency selective multipath fading channel. A conventional correlator type receiver has been considered for the analysis. Noise is taken as additive white Gaussian noise (AWGN) with two sided power spectral density N0/2. To model multiple access interference (MAI), standard Gaussian approximation (SGA) has been considered in this paper. To mitigate the near-far problem, a power control scheme, but imperfect has been assumed in this paper. The bit error rate (BER) expression for the system has been derived and simulated by varying number of users, number of fading path, processing gain, fading parameter, SNR per bit Eb/N0 and variation in the amplitude of the received signal. The analysis shows that as the number of simultaneous active user, the number of fading path and the variation in the power of the received signal increases, the BER of the system increases indicating the performance degradation. As the value of the processing gain, the ratio Eb/N0 and the fading parameter increases, the BER performance of the system improves.
KW - BER
KW - Correlator type receiver
KW - DS-CDMA
KW - Imperfect power control
KW - Nakagami-m fading channel
UR - http://www.scopus.com/inward/record.url?scp=33847287691&partnerID=8YFLogxK
U2 - 10.1109/ICON.2005.1635662
DO - 10.1109/ICON.2005.1635662
M3 - Conference contribution
AN - SCOPUS:33847287691
SN - 1424400007
SN - 9781424400003
T3 - 2005 13th IEEE International Conference on Networks jointly held with the 2005 7th IEEE Malaysia International Conference on Communications, Proceedings
SP - 1017
EP - 1022
BT - 2005 13th IEEE International Conference on Networks jointly held with the 2005 7th IEEE Malaysia International Conference on Communications, Proceedings
T2 - 2005 13th IEEE International Conference on Networks jointly held with the 2005 7th IEEE Malaysia International Conference on Communications
Y2 - 16 November 2005 through 18 November 2005
ER -