Title
Node Symbol Timing Error Estimator For Physical-Layer Network-Coded Relay
Abstract
Network coding on the physical-layer has recently been widely discussed as a potentially promising solution to the wireless access problem in a relay network. However, the existing research on physical-layer network coding (PNC), usually assumes that the symbol timing of the nodes is fully synchronized and hardly investigates the unavoidable symbol timing errors. Similar to many telecommunication systems, symbol timing plays a critical role in PNC and precise alignment has to be provided for the encoding. In this work, we propose a novel symbol timing algorithm with a low oversampling factor (samples per symbol) based on the a priori knowledge of the transmitted pulse shape. The proposed algorithm has the dual advantages of the low oversampling rate and high precision. The mean square error (MSE) performance is verified by simulations to be at least one order of magnitude better than that of the conventional optimum phase (OP) algorithm for a signal noise ratio (SNR) greater than 5 dB.
Year
DOI
Venue
2015
10.1587/transfun.E98.A.2733
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
Keywords
Field
DocType
physical-layer network coding, two-way relay channels, symbol timing estimation, pulse shape
Relay channel,Physical layer network coding,Telecommunications,Symbol,Timing error,Algorithm,Theoretical computer science,Physical layer,Relay,Mathematics,Estimator
Journal
Volume
Issue
ISSN
E98A
12
1745-1337
Citations 
PageRank 
References 
0
0.34
3
Authors
4
Name
Order
Citations
PageRank
Xiaoyu Dang13810.69
Qiang Li22014.81
Hao Xiao300.34
Cheng Wan443.18