Paper Info
Title
Co-Channel Interference Cancellation In Ofdm Networks Using Coordinated Symbol Repetition And Soft Decision Mle Cci Canceler
Abstract
In this paper, a new scheme of downlink co-channel interference (CCI) cancellation in OFDM cellular networks is introduced for users at the cell-edge. Coordinated symbol transmission between base stations (BS) is operated where the same symbol is transmitted from different BS on different sub-carriers. At the mobile station (MS) receiver, we introduce a soft decision maximum likelihood CCI canceler and a modified maximum ratio combining (M-MRC) to obtain an estimate of the transmitted symbols. Weights used in the combining method are derived from the channels coefficients between the cooperated BS and the MS. Simulations show that the proposed scheme works well under frequency-selective channels and frequency non-selective channels. A gain of 9 dB and 6 dB in SIR is obtained under multipath fading and flat-fading channels, respectively.
Year
Venue
Keywords
2009
Clinical Orthopaedics and Related Research
Cellular OFDM networks, ML CCI Cancellation, Soft decision, VMIMO
Field
DocType
Volume
Multipath propagation,Maximal-ratio combining,Mobile station,Computer science,Fading,Single antenna interference cancellation,Co-channel interference,Electronic engineering,Orthogonal frequency-division multiplexing,Telecommunications link
Journal
abs/0910.0
Citations 
PageRank 
References 
0
0.34
4
Authors
2
Name
Order
Citations
PageRank
Manar Mohaisen19728.83
Kyunghi Chang220241.07