An Intercell Interference Cancellation Method for OFDM-Based Cellular Systems Using A Virtual Smart Antenna

Conference: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
09/11/2005 - 09/14/2005 at Berlin, Germany

Proceedings: PIMRC 2005

Pages: 4Language: englishTyp: PDF

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Park, Kyung Won (KETI (Korea Electronics Technology Institute), Sungnam-si 463-816, Korea)
Lee, Kyu In; Cho, Yong Soo (School of Electrical and Electronic Engineering, Chung-Ang Univ., Seoul 156-756, Korea)
Ahn, Jae Young (ETRI (Electronics and Telecommunications Research Institute), Taejon 305-600, Korea)

In this paper, a concept of virtual smart antenna (SA) is introduced for OFDM-based cellular systems with a frequency reuse factor equal to 1. An estimation method of intercell symbol timing offsets (STOs) from received OFDM signals impinging on virtual antenna is proposed for users at a cell boundary. Also, adaptive beamforming methods for virtual SA are proposed to reduce intercell interference (ICI) from adjacent base stations (BSs).