On the optimal relay design for multi-antenna cognitive two-way AF relay networks

Maksym A. Girnyk, Mikko Vehkapera, Sergiy A. Vorobyov

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Cognitive relaying is an efficient method for tackling the problem of spectrum scarcity by serving new (secondary) users, while keeping the existing (primary) users satisfied with their service. Moreover, additional gains can be attained from employment of the two-way relaying with multiple-antenna relays within the secondary network. In this paper, we consider an underlay two-way cognitive network and propose an efficient algorithm for computing a (nearly) optimal relay precoder matrix subject to the interference constraint towards the primary network. The efficiency of the proposed solution is highlighted by means of numerical simulations.
Original languageEnglish
Title of host publication48th Asilomar Conference on Signals, Systems and Computers
EditorsMichael B. Matthews
PublisherIEEE Institute of Electrical and Electronic Engineers
Pages1579-1583
Number of pages5
ISBN (Electronic)978-1-4799-8297-4, 978-1-4799-8295-0
DOIs
Publication statusPublished - 24 Apr 2015
MoE publication typeA4 Article in a conference publication
Event48th Asilomar Conference on Signals, Systems and Computers, ACSSC 2015 - Pacific Grove, United States
Duration: 2 Nov 20145 Nov 2014

Conference

Conference48th Asilomar Conference on Signals, Systems and Computers, ACSSC 2015
CountryUnited States
CityPacific Grove
Period2/11/145/11/14

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    Girnyk, M. A., Vehkapera, M., & Vorobyov, S. A. (2015). On the optimal relay design for multi-antenna cognitive two-way AF relay networks. In M. B. Matthews (Ed.), 48th Asilomar Conference on Signals, Systems and Computers (pp. 1579-1583). [7094731] IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/ACSSC.2014.7094731