TY - GEN
T1 - New resource allocation scheme for cognitive relay networks with opportunistic access
AU - Zafar, Ammar
AU - Alouini, Mohamed-Slim
AU - Chen, Yunfei
AU - Radaydeh, Redha Mahmoud Mesleh
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2012/6
Y1 - 2012/6
N2 - In this paper, a new resource allocation scheme to minimize Symbol Error rate (SER) for relay assisted cognitive radio networks is studied. A cognitive relay network with amplify-and-forward (AF) fixed gain relays and opportunistic access to the licensed spectrum is considered. The SER objective function and the optimization constraints are derived first. The resource allocation algorithm is then derived using the Langrangian multiplier method. Closed form expressions are derived for the source and relay powers and, symbol time. Analytical results show that the optimal power allocation follows an extended water-filling solution. © 2012 IEEE.
AB - In this paper, a new resource allocation scheme to minimize Symbol Error rate (SER) for relay assisted cognitive radio networks is studied. A cognitive relay network with amplify-and-forward (AF) fixed gain relays and opportunistic access to the licensed spectrum is considered. The SER objective function and the optimization constraints are derived first. The resource allocation algorithm is then derived using the Langrangian multiplier method. Closed form expressions are derived for the source and relay powers and, symbol time. Analytical results show that the optimal power allocation follows an extended water-filling solution. © 2012 IEEE.
UR - http://hdl.handle.net/10754/564573
UR - http://ieeexplore.ieee.org/document/6364910/
UR - http://www.scopus.com/inward/record.url?scp=84871977497&partnerID=8YFLogxK
U2 - 10.1109/ICC.2012.6364910
DO - 10.1109/ICC.2012.6364910
M3 - Conference contribution
SN - 9781457720529
SP - 5603
EP - 5607
BT - 2012 IEEE International Conference on Communications (ICC)
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -