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An Intercell Interference Cancellation Method for OFDM-based Cellular Systems Using a Virtual Smart Antenna  

Park Kyung-won (전자부품연구원 DxB 통신융합연구센터)
Lee Kyu-in (중앙대학교 전자전기공학부 디지털통신 연구실)
Ahn Jae-young (전자통신연구원 차세대무선전송연구팀)
Cho Yong-soo (중앙대학교 전자전기공학부 디지털통신 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.12A, 2005 , pp. 1161-1167 More about this Journal
Abstract
In this Paper, a concept of virtual smart antenna (SA) is introduced for orthogonal Sequency division multiplexing (OFDM)-based cellular systems with a frequency reuse factor equal to 1. The OFDM-based cellular system is robust to multipath channels but has a disadvantage that the intercell interference (ICI) caused by adjacent base stations is large at the edge of a cell. In this paper, after deriving the symbol timing offset estimation scheme for the OFDM signal received from multiple base stations in a quasi-static fading channel, the ICI cancellation method based on virtual smart antenna is proposed using the steering vector formed by the symbol timing offset of the desired signal and interference signals.
Keywords
OFDM; Smart Antenna; Intercell Interference; Symbol Timing-offset; MUSIC;
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  • Reference
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