Title :
Performance analysis of convolutionally coded multicarrier DS/CDMA system in Nakagami fading
Author :
Ugweje, Okechukwu C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Akron Univ., OH, USA
fDate :
6/24/1905 12:00:00 AM
Abstract :
In this paper, we present the performance of a multicarrier code division multiple access (MC-CDMA) system when the data is convolutionally coded before serial-to-parallel conversion. The bit error rate (BER) bound for the decoding metric using the Viterbi algorithm is derived. Two types of performance bounds for the coded system are compared with the uncoded system with respect to bandwidth, bit rate and modulation. Our results indicate that the performance of MC-CDMA is significantly improved when channel coding is applied for the two bounds.
Keywords :
Viterbi decoding; channel coding; code division multiple access; convolutional codes; error statistics; fading channels; mobile radio; spread spectrum communication; BER; DS-CDMA; MC-CDMA; Nakagami fading; Viterbi decoding; bit error rate; channel coding; convolutional code; multicarrier code division multiple access; performance bounds; serial-to-parallel conversion; Bandwidth; Bit error rate; Bit rate; Convolutional codes; Decoding; Fading; Multiaccess communication; Multicarrier code division multiple access; Performance analysis; Viterbi algorithm;
Conference_Titel :
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Print_ISBN :
0-7803-7484-3
DOI :
10.1109/VTC.2002.1002871
