Title :
Joint Power Control and Beamforming for Secondary Spectrum Sharing
Author :
Islam, Md Habibul ; Liang, Ying-Chang ; Hoang, Anh Tuan
Author_Institution :
Inst. for Infocomm Res., Singapore
Abstract :
We study the problem of joint power control and beamforming for the uplink of a secondary wireless network that shares spectrum with a primary network to which the spectrum is licensed. The objective is to minimize the total transmitted power by the system and satisfy the quality of service (QoS) requirements of both primary and secondary users with priority being given to the primary users. We formulate two iterative algorithms considering two scenarios of spectrum sharing based on cooperation between the two networks. Simulation results are provided to show the convergence behavior of the iterative algortihms.
Keywords :
bandwidth allocation; iterative methods; quality of service; radio networks; beamforming; convergence behavior; iterative algorithms; power control; quality of service; secondary spectrum sharing; secondary wireless network; Antenna arrays; Array signal processing; Cognitive radio; Interchannel interference; Interference constraints; Iterative algorithms; Power control; Quality of service; Signal to noise ratio; Wireless networks;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC-2007 Fall. 2007 IEEE 66th
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-0263-2
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2007.329
