Title :
Realization of multi-carrier direct sequence CDMA using viterbi decoder
Author :
Joseph, Neenu ; Sathyabhama, S. ; Nirmal Kumar, P.
Author_Institution :
Dept. of ECE, Anna Univ., Chennai, India
Abstract :
In this paper, MULTI CARRIER-DIRECT SEQUENCE Code-division multiple-access (MC-DS-CDMA) system has been considered to candidate to support multimedia services in mobile communication. It provides higher capacity over conventional access schemes Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA) and Multi -Carrier CDMA (MC-CDMA). Recently, a new CDMA system based on a combination of DS-CDMA scheme and orthogonal frequency division multiplexing (OFDM) signaling, which is called “multi- carrier direct sequence CDMA (MC-DS-CDMA) system,” and combined with the viterbi decoder has been reported. The transmitter/receiver bit error rate of transmitted signal spectrum is compared effectively with those of a conventional direct-sequence (DS) CDMA system, MC-CDMA and MC-DS CDMA design method.
Keywords :
OFDM modulation; Viterbi decoding; code division multiple access; codecs; error statistics; frequency division multiple access; radio receivers; radio transmitters; spread spectrum communication; time division multiple access; FDMA; MC-CDMA design method; MC-DS-CDMA system; OFDM signaling; TDMA; Viterbi decoder; code-division multiple-access system; frequency division multiple access; mobile communication; multi-carrier direct sequence CDMA system; multimedia services; orthogonal frequency division multiplexing; receiver bit error rate; signal spectrum; time division multiple access; transmitter bit error rate; Bit error rate; Field programmable gate arrays; Lead; Manganese; Multiaccess communication; OFDM; Speech; MC-DS CDMA; OFDM; Viterbi Decoder;
Conference_Titel :
Electronics and Communication Systems (ICECS), 2014 International Conference on
Conference_Location :
Coimbatore
Print_ISBN :
978-1-4799-2321-2
DOI :
10.1109/ECS.2014.6892758
