Title :
Optimal resource management in multimedia WCDMA systems
Author :
Soleimanipour, Majid ; Zhuang, Weihua ; Freeman, George H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
Abstract :
We propose a scheme of optimal resource management for reverse-link transmissions: in multimedia wideband code-division multiple-access (WCDMA) communications. It is to guarantee quality of service (QoS) by resource allocation (transmitted power and rate) and achieve high spectral efficiency by base-station assignment. The approach takes the form of a nonlinear-programming large-scale optimization problem: maximizing an abstraction for the profit of a service provider subject to QoS satisfaction. Due to its max-max structure, solving the optimization problem directly entails a high computational complexity. Instead, the problem is reformulated to: a mixed integer nonlinear-programming (MINLP) problem. Then, binary variables indicating base-station assignments are relaxed to their continuous analogs to make a computer solution feasible. Preliminary simulation results show the effectiveness in a multicell network
Keywords :
cellular radio; code division multiple access; integer programming; linear programming; minimax techniques; multimedia communication; multiuser channels; quality of service; radio links; radio networks; spread spectrum communication; telecommunication network management; DS-CDMA; QoS guarantee; base-station assignments; binary variables; high computational complexity; large-scale optimization problem; max-max structure; mixed integer nonlinear-programming; multicell network; multimedia WCDMA systems; optimal resource management; optimization problem; quality of service; resource allocation; reverse-link transmissions; service provider; simulation results; spectral efficiency; transmitted power; wideband code-division multiple-access; Base stations; Bit error rate; Communication system traffic control; Computational modeling; Large-scale systems; Multiaccess communication; Multimedia systems; Quality of service; Resource management; Wideband;
Conference_Titel :
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-6451-1
DOI :
10.1109/GLOCOM.2000.891898
