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Proceedings Paper

Performance comparison of modulation techniques for underlay cognitive radio transceivers
Author(s): Imtiyaz Khan; Poonam Singh
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Paper 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.

Paper Details

Date Published: 28 January 2013
PDF: 7 pages
Proc. SPIE 8760, International Conference on Communication and Electronics System Design, 876003 (28 January 2013); doi: 10.1117/12.2009099
Show Author Affiliations
Imtiyaz Khan, National Institute of Technology (India)
Poonam Singh, National Institute of Technology (India)

Published in SPIE Proceedings Vol. 8760:
International Conference on Communication and Electronics System Design
Vijay Janyani; M. Salim; K. K. Sharma, Editor(s)

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