NDLI: OFDM and SCFDE performance comparison for indoor optical wireless communication systems

Content Provider	IEEE Xplore Digital Library
Author	Mesleh, R.
Copyright Year	2012
Description	Author affiliation: University of Tabuk, Electrical Engineering Department & Sensor Networks and Cellular Systems (SNCS) Research Center, P.O.Box: 6592-2, 47315/4031, Saudi Arabia (Mesleh, R.)
Abstract	Single-carrier frequency domain equalization (SCFDE) modulation is a promising technique for highly dispersive channels in broadband wireless communications. Similar to OFDM (orthogonal frequency division multiplexing), SCFDE attach a cyclic prefix (CP) to the transmitted symbol to eliminate inter-carrier interference (ICI) and converts the convolution with the channel to circular convolution. However and unlike OFDM, SCFDE is essentially a single carrier system. Thereby, some of the major OFDM problems, such as high PAPR (peak to average power ratio), are inherently resolved. The high PAPR problem in OFDM and the resulting nonlinear distortions are shown to have significant impact on the performance of indoor optical wireless (OW) systems [1]. Hence, it is the aim of this paper to study the performance of SCFDE for indoor OW systems and compare the performance to OFDM system. It is shown that, indeed, OW SCFDE system has low PAPR as compared to the corresponding OFDM system. However, the performance of OW OFDM systems and their counterpart SCFDE systems are traded off for certain input signal powers and modulation orders.
Starting Page	1
Ending Page	5
File Size	203164
Page Count	5
File Format	PDF
ISBN	9781467307451
e-ISBN	9781467307475
e-ISBN	9781467307468
DOI	10.1109/ICTEL.2012.6221267
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-04-23
Publisher Place	Lebanon
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Integrated optics DC-biased OFDM SCFDE Peak to average power ratio Optical distortion LED nonlinearity Light emitting diodes ACO Wireless communication Modulation direct detection intensity modulation Optical wireless communication
Content Type	Text
Resource Type	Article

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