Title :
Performance analysis of OMC-CDMA on two-ray multipath fading channels
Author :
Moon, Sungdon ; Ko, GwangZeen ; Kim, Kiseon
Author_Institution :
Dept. of Inf. & Commun., K-JIST, Kwangju, South Korea
Abstract :
Orthogonal multi-carrier-code division multiple access (OMC-CDMA) is a scheme that combines multi-carrier modulation with direct sequence-spread spectrum (DS-SS) and allows the efficient utilization of the bandwidth, the resistance against frequency selective fading in broadband mobile radio channels and the efficient implementation by the FFT algorithm. We analyze the bit error probability (BER) of OMC-CDMA on two-ray Rayleigh multipath fading channels and compare the BER performance of OMC-CDMA according to the number of users and subcarriers, attenuation factor of the delayed path, the delay time. We found that the attenuation factor of the delayed path is more sensitive to the BER of OMC-CDMA than the delay time.
Keywords :
Rayleigh channels; broadband networks; code division multiple access; delays; error statistics; fast Fourier transforms; land mobile radio; multipath channels; multiuser channels; personal communication networks; spread spectrum communication; BER performance; DS-SS; FFT algorithm; OMC-CDMA; Rayleigh channels; attenuation factor; bit error probability; broadband mobile radio channels; delay time; delayed path; direct sequence-spread spectrum; efficient bandwidth utilization; frequency selective fading; multi-carrier modulation; orthogonal multi-carrier-code division multiple access; performance analysis; personal wireless communications; subcarriers; two-ray multipath fading channels; wireless broadband telecommunication systems; Attenuation; Bandwidth; Bit error rate; Delay effects; Error analysis; Fading; Frequency conversion; Land mobile radio; Performance analysis; Rayleigh channels;
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Conference_Location :
Beijing, China
Print_ISBN :
7-5635-0402-8
DOI :
10.1109/APCC.1999.824992
