TY - GEN
T1 - Power allocation for outage rate maximization in OFDM relay links
AU - Biyanwilage, Shashika
AU - Gunawardana, Upul
AU - Liyanapathirana, Ranjith
PY - 2012
Y1 - 2012
N2 - The power allocation problem in a two-hop OFDM amplify-and-forward (AF) relay link is studied when the available channel state information (CSI) is an outdated, but correlated version of the actual instantaneous CSI. We propose a power loading scheme to maximize the outage rate. The outage rate achieved by the proposed approach is compared with uniform power allocation and instantaneous rate maximization to study the effectiveness of adaptive power loading when the available CSI is outdated. Results confirm that the proposed method achieves higher outage rate than the other two methods.
AB - The power allocation problem in a two-hop OFDM amplify-and-forward (AF) relay link is studied when the available channel state information (CSI) is an outdated, but correlated version of the actual instantaneous CSI. We propose a power loading scheme to maximize the outage rate. The outage rate achieved by the proposed approach is compared with uniform power allocation and instantaneous rate maximization to study the effectiveness of adaptive power loading when the available CSI is outdated. Results confirm that the proposed method achieves higher outage rate than the other two methods.
KW - amplify-and-forward
KW - optimization
KW - orthogonal frequency division multiplexing
KW - wireless channels
UR - http://handle.uws.edu.au:8081/1959.7/520904
UR - http://www.ieee-pimrc.org/2012/
U2 - 10.1109/PIMRC.2012.6362655
DO - 10.1109/PIMRC.2012.6362655
M3 - Conference Paper
SN - 9781467325691
SP - 1862
EP - 1866
BT - Proceedings of the 2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications: IEEE PIMRC 2012: Sept. 9-12, 2012, Sydney, Australia
PB - IEEE
T2 - IEEE International Symposium on Personal_Indoor_and Mobile Radio Communications
Y2 - 9 September 2012
ER -