Paper Info
Title
Multipath division turbo equalization with block inter-carrier interference cancellation in cellular system with amplify-and-forward relaying
Abstract
This paper proposes multipath division turbo equalization with block inter-carrier interference cancellation (MD-BIC) for orthogonal frequency division multiplexing (OFDM). When the multipath delay difference exceeds the cyclic prefix (CP) length, the OFDM transmission performance suffers severely due to inter-symbol interference (ISI) and inter-carrier interference (ICI). Cellular systems with amplify-and-forward (AF) relay stations, for example, might cause a long delay due to their process delays. Therefore, mobile terminals served by AF relay systems should compensate for the influence of ISI and ICI. MD-BIC divides a series of paths into several blocks by using a log likelihood ratio (LLR) that is computed in the decoding process. The delay difference within each block is limited so as not to exceed the CP length. This means that ISI and ICI are mitigated in each block. Computer simulations demonstrate that the proposed scheme can achieve excellent performance in the severe multipath channels where the delay difference is greater than the CP length.
Year
DOI
Venue
2009
10.1109/PIMRC.2009.5450046
PIMRC
Keywords
Field
DocType
turbo codes,mobile communication,amplify-and-forward relay stations,af relay,cyclic codes,cellular radio,multipath division turbo equalization,block inter-carrier interference cancellation,ofdm modulation,orthogonal frequency division multiplexing,block codes,mobile terminals,turbo equalization,cyclic prefix,ofdm,inter-carrier interference,interference suppression,inter-symbol interference,cellular system,amplify-and-forward relaying,log likelihood ratio,af relay systems,interference (signal),ofdm transmission performance,decoding,signal to noise ratio,modulation,computer simulation
Multipath propagation,Equalization (audio),Cyclic prefix,Computer science,Delay spread,Turbo code,Single antenna interference cancellation,Block code,Computer network,Orthogonal frequency-division multiplexing
Conference
ISBN
Citations 
PageRank 
978-1-4244-5123-4
0
0.34
References 
Authors
3
6
Name
Order
Citations
PageRank
Katsuya Kato101.35
Ryota Yamada2416.40
Takashi Yoshimoto320.95
Kazuyuki Shimezawa421.29
Minoru Kubota5112.29
Naoki Okamoto621.97