Universal Journal of Communications and Network Vol. 1(3), pp. 81 - 87
DOI: 10.13189/ujcn.2013.010301
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BER Enhancement of MC-CDMA through B-STTC Based STBC and STBC Based B-STTC Site Diversity Techniques


M.Pushpakodi 1, N. Kumaratharan 2,*
1 Department of Electronics and Communication Engineering, Cahcet, Melvisharam, India
2 Department of Information Technology, Sri Venkateswara College of Engineering, Irungatukottai – 602 117, Chennai, India

ABSTRACT

The combination of multiple antennas and multi-carrier code division multiple access (MC-CDMA) is a strong candidate for the downlink of future mobile communications. The advancement of such systems, in scenarios that model real life transmissions is an additional step towards an optimised achievement. Nevertheless, when transmitting over fading channel multi-cell interference occurs and this degrades the performance of the system. Site diversity technique is applied to the system to overcome multi-cell interference. Due to non orthogonality of spreading codes multi-cell interference is not completely eradicated. To overcome this problem, space time block code (STBC) based space time trellis code (STTC) site diversity technique was introduced to reduce multi-cell interference. In this paper, balanced STTC (B-STTC) based STBC site diversity is proposed to further improve the performance of MC-CDMA system by mitigating multi-cell interference and is extended to STBC based B-STTC site diversity technique. Simulation result shows that STBC based B-STTC site diversity outperforms B-STTC based STBC site diversity technique.

KEYWORDS
MC-CDMA, STBC, STTC, B-STTC

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] M.Pushpakodi , N. Kumaratharan , "BER Enhancement of MC-CDMA through B-STTC Based STBC and STBC Based B-STTC Site Diversity Techniques," Universal Journal of Communications and Network, Vol. 1, No. 3, pp. 81 - 87, 2013. DOI: 10.13189/ujcn.2013.010301.

(b). APA Format:
M.Pushpakodi , N. Kumaratharan (2013). BER Enhancement of MC-CDMA through B-STTC Based STBC and STBC Based B-STTC Site Diversity Techniques. Universal Journal of Communications and Network, 1(3), 81 - 87. DOI: 10.13189/ujcn.2013.010301.