@inproceedings{7034f011c59f42418531f2f0f30cffdc,
title = "On the outage probability optimization in MISO Rician channels",
abstract = "We address the optimization issue of the outage probability in Rician block fading channels with N transmit antennas and 1 receive antenna. It is already known that the eigenvectors of the covariance matrix of the transmit signal that minimizes the outage probability are the normalized mean vector of the Rician channel and N · 1 orthonormal vectors belonging to the space orthogonal to the range of the mean vector. Our contribution is to optimize the eigenvalues. At high SNR, we show that the part of the power allocated to the orthogonal space of the range of the mean vector should be uniformly distributed amongst its N · 1 eigenvectors. In addition, thanks to an original approximation of the outage probability, we characterize the part of power associated with the mean vector. We numerically observe improvement achieved by the proposed allocation scheme compared to uniform power allocation.",
keywords = "Beamforming, Optimization, Outage probability, Rician channel",
author = "E. Bouton and N. Ksairi and P. Ciblat and P. Bianchi and W. Hachem",
year = "2009",
month = jan,
day = "1",
doi = "10.1109/WiMob.2009.58",
language = "English",
isbn = "9780769538419",
series = "WiMob 2009 - 5th IEEE International Conference on Wireless and Mobile Computing Networking and Communication",
publisher = "IEEE Computer Society",
pages = "301--306",
booktitle = "WiMob 2009 - 5th IEEE International Conference on Wireless and Mobile Computing Networking and Communication",
note = "5th IEEE International Conference on Wireless and Mobile Computing Networking and Communication, WiMob 2009 ; Conference date: 12-10-2009 Through 14-10-2009",
}