Title :
An Efficient Time Synchronization Scheme for Broadband Two-Way Relaying Networks Based on Physical-Layer Network Coding
Author :
Chang, Sekchin ; Kelley, Brian
Author_Institution :
Sch. of Electr. & Comput. Eng., Univ. of Seoul, Seoul, South Korea
fDate :
9/1/2012 12:00:00 AM
Abstract :
We present an efficient time synchronization scheme for broadband two-way relaying networks based on two-phase physical layer network coding. Especially, a preamble structure is proposed in this letter for the synchronization. The synchronization approach exploits the preamble in frequency domain and time domain to effectively separate the mixed signals, and jointly estimate timing-offsets and channel parameters, respectively. Numerical results confirm that the suggested method is superior to the conventional scheme, and is very suitable for the synchronization in broadband two-way relaying networks based on two-phase physical layer network coding.
Keywords :
broadband networks; channel estimation; frequency-domain analysis; network coding; parameter estimation; relays; synchronisation; time-domain analysis; broadband two-way relaying network; channel parameter estimation; efficient time synchronization scheme; frequency domain analysis; physical-layer network coding; preamble structure; time domain analysis; timing-offset estimation; two-phase physical layer network coding; Bit error rate; Broadband communication; Channel estimation; Estimation; Network coding; Synchronization; Wireless communication; Time synchronization; broadband two-way relaying networks; physical layer network coding;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2012.071612.120529
