On combined beamforming and OSTBC over the cognitive radio Z-channel with partial CSI
2012 (English)In: Communications (ICC), 2012 IEEE International Conference on, IEEE , 2012, 2380-2384 p.Conference paper (Refereed)
We consider a pair of secondary nodes (SU) coupled, in Z-topology, with multiple pairs of primary nodes (PU). The secondary (cognitive) transmitter is combining beamforming with orthogonal space-time block coding (BOSTBC) and operates under Quality-of-Service (QoS) constraints that must be guaranteed for the primary receivers (PURx). The cognitive link is designed assuming imperfect channel state information (CSI) for all links, available at the SU transmitter (SUTx). Under this premise we characterize the optimal design in terms of CSI quality and interference and evaluate their impact on the performance of BOSTBC transmission in underlay cognitive networks.
Place, publisher, year, edition, pages
IEEE , 2012. 2380-2384 p.
, IEEE International Conference on Communications, ISSN 1550-3607
Beamforming, cognitive Z-channel, space-time coding
Communication Systems Telecommunications
IdentifiersURN: urn:nbn:se:kth:diva-107892DOI: 10.1109/ICC.2012.6363823ISI: 000312855702136ScopusID: 2-s2.0-84871942720ISBN: 978-145772052-9OAI: oai:DiVA.org:kth-107892DiVA: diva2:578629
2012 IEEE International Conference on Communications, ICC 2012; Ottawa, ON; 10 June 2012 through 15 June 2012
FunderEU, FP7, Seventh Framework Programme, INFSO-ICT-248303 QUASAR
QC 201301162012-12-182012-12-182013-02-21Bibliographically approved