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Equal Gain Combining SC-FDMA Performance over Correlated Shadowed Rice Land Mobile Satellite Channel

Authors:
Jyoti Gangane
Mari-Carmen Aguayo-Torres
Juan Sánchez-Sánchez
Francisco Blánquez-Casado4

Keywords: OFDMA, SC-FDMA, LOS, LMS

Abstract:
— Single Carrier Frequency Division Multiple Access (SC-FDMA) has shown robustness to multipath fading and similar characteristics to those of Orthogonal Frequency Division Multiple Access (OFDMA). The main advantage of SC-FDMA over OFDMA is its lower Peak to Power Average Ratio (PAPR). Because of this, Single Carrier Frequency Division Multiple Access has been proposed for transmission in Land Mobile Satellite (LMS) Systems. The link level performance of LMS system is diminished by rapid amplitude and phase variations of the received signal. These fluctuations are caused by multipath propagation and attenuation due to shadowing and can be alleviated by the use of diversity at receiver. In this paper, we have investigated SC-FDMA performance for Equal Gain Combining (EGC) diversity over a correlated Shadowed Rice LMS channel, a generalized Rice channel in which the Line of Sight is following Nakagami-m distribution and received echoes following an exponentially decreasing Power Delay Profile. We show that Interleaved SC-FDMA performance is better than Localized SC-FDMA.

Pages: 157 to 161

Copyright: Copyright (c) IARIA, 2013

Publication date: July 21, 2013

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-284-4

Location: Nice, France

Dates: from July 21, 2013 to July 26, 2013