Title :
Two-cell utility-based resource allocation for a CDMA voice service
Author :
Zhou, Chi ; Honig, Michael L. ; Jordan, Scott
Author_Institution :
Dept. of Electr. Eng., Northwestern Univ., Evanston, IL, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
Resource allocation is studied for the forward link of a two-cell wireless direct sequence (DS)-code division multiple access (CDMA) network. A voice service is assumed, for which system resources are transmitted power and codes. Each user has a utility function that measures the user´s willingness to pay as a function of the received quality of service (QoS). Our objective is to maximize the total utility over all active users. We characterize the optimal power distribution across the two cells, and show that in general, the cells must coordinate, or exchange information, to achieve the maximum utility. The optimal allocation can be achieved by a pricing scheme, in which each base station announces a price for each resource, and each user responds by buying an amount of resources that maximizes the user´s surplus (utility minus cost).
Keywords :
cellular radio; code division multiple access; costing; multiuser channels; optimisation; quality of service; radio links; spread spectrum communication; tariffs; voice communication; CDMA voice service; DS-CDMA network; QoS; base station; codes; cost; direct sequence-code division multiple access; forward link; optimal allocation; optimal power distribution; pricing; quality of service; transmitted power; two-cell utility-based resource allocation; user surplus; utility function; Base stations; Cost function; Multiaccess communication; Power distribution; Power system modeling; Pricing; Quality of service; Resource management; Signal to noise ratio; Wireless networks;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956548