DMCA
Iterative Receiver Processing for OFDM Modulated Physical-Layer Network Coding in Underwater Acoustic Channels (2012)
| Venue: | IEEE TRANSACTIONS ON COMMUNICATIONS (TO APPEAR) |
| Citations: | 1 - 0 self |
BibTeX
@MISC{Wang12iterativereceiver,
author = {Zhaohui Wang and Jie Huang and Shengli Zhou and Zhengdao Wang},
title = {Iterative Receiver Processing for OFDM Modulated Physical-Layer Network Coding in Underwater Acoustic Channels},
year = {2012}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
Physical-layer network coding (PLNC) allows two remote terminals to exchange information in two time slots via a half-duplex relay. In this paper, we consider PLNC in underwater acoustic (UWA) two-way relay networks, with particular attention on the recovery of the network-coded codeword at the relay. Considering multiple paths in UWA channels with large delay spreads and temporal variations, orthogonal-frequency division-multiplexing (OFDM) is used as an underlying modulation. Distinct from existing works which mainly focus on the flat-fading channel and the non-iterative PLNC decoding, we investigate three iterative receivers at the relay in doubly-selective UWA channels. To estimate the network-coded codeword, the three receivers respectively adopt i) a conventional decoding scheme to recover the codewords from two terminals independently; ii) a decoding scheme to recover the network-coded codeword
Keyphrases
network-coded codeword underwater acoustic channel iterative receiver processing ofdm modulated physical-layer network coding ieee transaction communication half-duplex relay doubly-selective uwa channel underlying modulation time slot conventional decoding scheme abstract physical-layer network coding temporal variation multiple path large delay spread two-way relay network orthogonal-frequency divisionmultiplexing particular attention remote terminal uwa channel iterative receiver flat-fading channel non-iterative plnc decoding
