[KSCI] Korea Science Citation Index Service

A Study on the Bandwidth Efficient Self-Cancellation Scheme of Interchannel Interference (ICI) For OFDM Transmission Systems

Kim, Gi-Rae (Department of Electronics, Silla University)
Chung, Yeon-Do (Department of Electronics & Telecommunication, Pukyong National University)

Publication Information

Journal of information and communication convergence engineering / v.4, no.4, 2006 , pp. 162-165 More about this Journal

Abstract

This paper presents a bandwidth efficient self-cancellation scheme for interchannel interference (ICI) in OFDM transmission systems. Conventional self-cancellation schemes provide an excellent cancellation capability of ICI for relatively low frequency offsets. However, this capability is achieved at the expense of bandwidth efficiency and thus a higher modulation level is often used to compensate for desired throughput. By applying a partial differential coding (PDC) to the transmit data prior to the ICI self-cancellation, bandwidth efficiency is greatly improved by a factor of 2, while maintaining a string of data (+1, -1) alternately for the ICI. self-cancellation in OFDM systems. Computer simulations show that the performance of the proposed scheme is comparable to the conventional self-cancellation scheme with slight performance degradation for relatively lower frequency offsets.

Keywords

ICI; OFDM; PDC;

Citations & Related Records

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