Performance comparison of modulation techniques for underlay cognitive radio transceivers

Imtiyaz Khan; Poonam Singh

doi:10.1117/12.2009099

28 January 2013 Performance comparison of modulation techniques for underlay cognitive radio transceivers

Imtiyaz Khan, Poonam Singh

Proceedings Volume 8760, International Conference on Communication and Electronics System Design; 876003 (2013) https://doi.org/10.1117/12.2009099
Event: International Conference on Communication and Electronics System Design, 2013, Jaipur, India

Abstract

In this paper, we present a quantitative comparison of two agile modulation techniques employed by cognitive radio transceivers operating in a dynamic spectrum access (DSA) network. One of the modulation techniques is single carrier frequency division multiple access (SC-FDMA). The other modulation technique under study is a variant of multicarrier code division multiple access (MCCDMA). Although several studies comparing conventional OFDM and MC-CDMA has been conducted in literature to justify robust error performance of MC-CDMA, a quantitative performance evaluation of these schemes has not been performed when employed in a DSA network. In this paper we show that their performances can be significantly different from the conventional setup. Analytical expressions for the error probability of an SC-FDMA transceiver have been derived and compared with computer simulation results. The results show that the error robustness of SC-FDMA is relatively better then MC-CDMA in underlay communication.

Citation Download Citation

Imtiyaz Khan and Poonam Singh "Performance comparison of modulation techniques for underlay cognitive radio transceivers", Proc. SPIE 8760, International Conference on Communication and Electronics System Design, 876003 (28 January 2013); https://doi.org/10.1117/12.2009099

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KEYWORDS

Modulation

Signal to noise ratio

Transceivers

Error analysis

Orthogonal frequency division multiplexing

Transmitters

Data conversion

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