Joint source-relay design in multi-antenna multi-relay networks with prefixed receivers
Ikhlef A, Schober R (2013)
Publication Type: Conference contribution
Publication year: 2013
Journal
Publisher: Institute of Electrical and Electronics Engineers Inc.
Pages Range: 5290-5295
Conference Proceedings Title: IEEE International Conference on Communications
Event location: Budapest
ISBN: 9781467331227
Abstract
In this paper, we consider the problem of joint source and relay precoder design for multi-antenna multi-relay networks with a prefixed receiver. Prefixed receivers are of practical interest since they enable low complexity at the end-user's receiver as well as backward compatibility. To compute the source and relay precoders, we propose to maximize the worst stream signal-to- interference-plus-noise ratio (SINR) at the output of the receiver subject to source and relay transmit power constraints. The problem is a non-convex optimization problem. To solve it, we propose an iterative alternating algorithm, where, in each iteration, we compute the precoders alternately. We formulate the resulting optimization problems for the computation of the source and relay precoders as second order cone programming (SOCP) and semidefinite relaxation (SDR) problems, respectively. Moreover, we provide sufficient conditions for the convergence of the proposed iterative alternating algorithm to a fixed point. Simulation results show that the performance of the proposed algorithm is close to the performance achieved if the source, relay, and receiver filters are jointly optimized. © 2013 IEEE.
Authors with CRIS profile
Involved external institutions
Canada (CA)How to cite
APA:
Ikhlef, A., & Schober, R. (2013). Joint source-relay design in multi-antenna multi-relay networks with prefixed receivers. In IEEE International Conference on Communications (pp. 5290-5295). Budapest, HU: Institute of Electrical and Electronics Engineers Inc..
MLA:
Ikhlef, Aissa, and Robert Schober. "Joint source-relay design in multi-antenna multi-relay networks with prefixed receivers." Proceedings of the 2013 IEEE International Conference on Communications, ICC 2013, Budapest Institute of Electrical and Electronics Engineers Inc., 2013. 5290-5295.
BibTeX: Download