Power allocation for proportional QoS adjustment with weighted sum power constraint

• Published in: Proceedings of the 31st Chinese Control Conference pp. 5499 - 5502
• Main Authors: Dai Jisheng, Ji Xiaofu, Liu Hao
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-07-2012
• Subjects: Call Admission Control; Code-Division-Multiple-Access (CDMA); Educational institutions; Eigenvalues and eigenfunctions; Multiaccess communication; Optimal Power Allocation; Perron-Frobenius; Quality of service; Resource management; Vectors; Wireless communication
• ISBN: 1467325813; 9781467325813
• ISSN: 1934-1768; 2161-2927

In an attempt to admit new users into Code-Division-Multiple-Access (CDMA) communication systems in the case of overload, we investigate an optimal proportional quality of service (QoS) reduction method subject to a weighted sum power constraint in this paper. Based on the Perron-Frobenius theorem, we are able to derive an optimal closed-form solution. Compared with a state-of-the-art method in the literature, our method greatly reduces the computational complexity. Numerical experiment result demonstrates the effectiveness of our method.