@inproceedings{d5c6d683baf145b1b00181395c8ec051,
title = "Transmit antenna selection in cognitive relay networks with Nakagami-m fading",
abstract = "We examine the impact of multiple primary receivers on cognitive multiple-input multiple-output (MIMO) relay networks with underlay spectrum sharing. For such a network, we propose transmit antenna selection with receive maximal-ratio combining (TAS/MRC) as an interference-aware design to satisfy the power constraints in the primary and secondary networks. To demonstrate this, we derive new closed-form expressions for the exact and asymptotic outage probability with TAS/MRC and decode-and-forward (DF) relaying over independent Nakagami-m fading channels in the primary and secondary networks. Several important design insights are reached. We find that the TAS/MRC strategy achieves a full diversity gain when the transmit power in the secondary network is proportional to the peak interference power in the primary network. Furthermore, we highlight that the diversity-multiplexing tradeoff (DMT) of TAS/MRC is independent of the primary network and entirely dependent on the secondary network.",
author = "Yeoh, {Phee Lep} and Maged Elkashlan and Duong, {Trung Q.} and Nan Yang and {Da Costa}, {Daniel Benevides}",
year = "2013",
doi = "10.1109/ICC.2013.6654959",
language = "English",
isbn = "9781467331227",
series = "IEEE International Conference on Communications",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2775--2779",
booktitle = "2013 IEEE International Conference on Communications, ICC 2013",
address = "United States",
note = "2013 IEEE International Conference on Communications, ICC 2013 ; Conference date: 09-06-2013 Through 13-06-2013",
}