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Frontiers of Information Technology & Electronic Engineering
ISSN 2095-9184 (print), ISSN 2095-9230 (online)
2016 Vol.17 No.9 P.938-945
Spatial channel pairing based coherent combining for relay networks
Abstract: In this paper, spatial channel pairing (SCP) is introduced to coherent combining at the relay in relay networks. Closed-form solution to optimal coherent combining is derived. Given coherent combining, the approximate SCP solution is presented. Finally, an alternating iterative structure is developed. Simulation results and analysis show that, given the symbol error rate and data rate, the proposed alternating iterative structure achieves signal-to-noise ratio gains over existing schemes in maximum ratio combining (MRC) plus matched filter, MRC plus antenna selection, and distributed space-time block coding due to the use of SCP and iterative structure.
Key words: Spatial channel pairing, Coherent combining, Alternating iterative structure, Symbol error rate, Distributed space-time block coding
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DOI:
10.1631/FITEE.1500436
CLC number:
TN925
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On-line Access:
2016-08-31
Received:
2015-12-06
Revision Accepted:
2016-03-11
Crosschecked:
2016-08-23