Title :
An intercell interference cancellation method for OFDM-based cellular systems using a virtual smart antenna
Author :
Park, Kyung Won ; Kyu In Lee ; Jae Young Ahn ; Yong Soo Cho
Author_Institution :
KETI, Sungnam-Si
Abstract :
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)
Keywords :
OFDM modulation; adaptive antenna arrays; array signal processing; cellular radio; interference suppression; intersymbol interference; ICI; OFDM-based cellular system; STO; adaptive beamforming method; adjacent base station; estimation method; frequency reuse factor; intercell interference; intercell symbol timing offset; interference cancellation method; orthogonal frequency division multiplexing; virtual smart antenna; AWGN; Adaptive arrays; Additive white noise; Array signal processing; Base stations; Baseband; Interference cancellation; OFDM; Receiving antennas; Timing;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on
Conference_Location :
Berlin
Print_ISBN :
9.7838007291e+012
DOI :
10.1109/PIMRC.2005.1651626
