Title :
On the receive power allocation in a cellular multimedia CDMA system with fixed base station assignment
Author :
Anpalagan, Alagan S. ; Sousa, Elvino S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
In this paper, we consider the receive power allocation (RPA) problem for multimedia users in a cellular CDMA network. It is shown that the problem can be split into two optimization problems, source-based RPA (SBRPA) and network-based RPA (NBRPA). SBRPA determines the relative receive power levels (RPLs) between different classes of users in each cell irrespective of the intercell interference and it is locally implemented. NBRPA determines the relative RPLs between cells and can be achieved solving an eigenvalue problem with the system-wide class-wise SIR-balancing and it is globally implemented. The need for interference-balancing to increase the capacity with minimum mobile transmit power is emphasized. Finally, numerical results are presented to demonstrate the effectiveness of the proper RPA in a cellular multimedia CDMA system
Keywords :
cellular radio; code division multiple access; multimedia communication; optimisation; radiofrequency interference; NBRPA; RPA problem; SBRPA; base station assignment; cellular multimedia CDMA system; eigenvalue problem; intercell interference; interference-balancing; network-based RPA; optimization problems; receive power allocation; relative receive power levels; source-based RPA; system-wide class-wise SIR-balancing; Base stations; Cellular networks; Educational institutions; Eigenvalues and eigenfunctions; Energy management; Interference; Multiaccess communication; Multimedia systems; Quality of service; Thermal loading;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851342
