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AUTHOR(S): Maryam Akhozahieh, Nasser Abdellatif
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TITLE Narrowband Interference Suppression in Wavelet Packet Multirate Multicarrier Multicode CDMA System |
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ABSTRACT Multicode (MCD) scheme can be used to transmit information with Multirates (MR) in Multicarrier CodeDivision Multiple Access (MCCDMA) system. Since wavelet packets (WPs) have lower sidelobes compared with sinusoidal carriers, then systems which use WPs as subcarriers are very effective in reducing the problem of intercarrier interference. The CDMA can suppress a given amount of interference. To mitigate the effect of narrowband jammer interference, suppression filter (SF) can be used in the receiver. Also, to reduce multiple access interference diversity techniques can be used. In this paper, the bit error rate performance of a system denoted by WPMRCDMA is tested. The effects of SF type and number of taps were investigated. Also, the effect of service rates is presented. |
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KEYWORDS
Multirate, Suppression filter, Wavelet Packets |
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REFERENCES
[1] M. M. AkhoZahieh, Design and Analysis of Multicarrier Multicode Wavelet Packets Based CDMA Communication Systems With Multiuser Detection, PhD Dissertation, The University of Akron, August 2006. [2] M. M. AkhoZahieh and Okechuk C. Ugweje, Diversity Performance of a WaveletPacketBased Multicarrier Multicode CDMA Communication System", IEEE Trans. Veh. Tech., vol. 57, no. 2, pp. 787797, March 2008. [3] M. M AkhoZahieh and N. Abdellatif, Effect of jamming and diversity on the performance of a wavelet packet based multicarrier multicode CDMA Communications, Vol. 67, No. 2, 2013, pp. 157166 [4] M. M. AkhoZahieh and N. Abdellatif, Narrowband interference suppression in wavelet packets based multicarrier multicode CDMA overlay system, Wireless Communications and Mobile Computing, Vol. 15, Issue 2, February 2015, pp 203 2014. [5] M. M. AkhoZahieh and N. Abdellatif, Performance analysis of wavelet packet multirate multicarrier multicode CDMA for wireless multimedia communications, International Journal of Electronics and Communications, Vol. 68, No. 4, 2014, pp. 291300. [6] M. M. AkhoZahieh and N. Abdellatif, Effect of Diversity and Filtering on the Performance of Wavelet Packets Base Multicarrier Multicode CDMA System, Journal of Signal and Information Processing, Vol 6, May 2015, pp 165179. [7] N. Nakagami, “The mdistribution, a general formula for intensity distribution of rapid fading,” In Statistical Methods in Radio Wave Propagation,W. G Hoffman, ed. Oxford, U.K: Pergamon, pp.335, 1960. [8] Jiangzhou W. On the use of suppression filter for CDMA overlay. IEEE Transactions on Vehicular Technology 1999; 48(2): 405–414 |
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Cite this paper Maryam Akhozahieh, Nasser Abdellatif. (2016) Narrowband Interference Suppression in Wavelet Packet Multirate Multicarrier Multicode CDMA System. International Journal of Communications, 1, 145-149 |
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