Cognitive MIMO Relaying with Multiple Primary Transceivers
2013 (English)In: 2013 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM), 2013, 1956-1961 p.Conference paper (Refereed)Text
We examine the impact of clusters of primary transceivers in cognitive multiple-input multiple-output (MIMO) relay networks with underlay spectrum sharing. In such a network, we propose antenna selection as an interference-aware design to satisfy the power constraints in the primary and secondary networks. To demonstrate this, we consider transmit antenna selection with maximal ratio combining (TAS/MRC) in the primary and secondary networks. With this in mind, we derive new closed-form asymptotic expressions for the outage probability and the symbol error rate (SER) over independent Nakagami-m fading channels. Our results lead to several new fundamental insights. In particular, we highlight that TAS/MRC achieves a full diversity gain when the maximum transmit power in the secondary network is proportional to the peak interference temperature in the primary network.
Place, publisher, year, edition, pages
2013. 1956-1961 p.
IEEE Global Telecommunications Conference (Globecom), ISSN 1930-529X
IdentifiersURN: urn:nbn:se:bth-12335ISI: 000357299602007ISBN: 978-1-4799-1353-4OAI: oai:DiVA.org:bth-12335DiVA: diva2:940748
IEEE Global Communications Conference (GLOBECOM), DEC 09-13, 2013, Atlanta, GA