On the receive power allocation in a cellular multimedia CDMA system with fixed base station assignment

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.

[1]  Marina Ruggieri,et al.  An approach to maximize the capacity of a multimedia CDMA wireless system , 1998, VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151).

[2]  Andrew J. Viterbi,et al.  On the capacity of a cellular CDMA system , 1991 .

[3]  F. R. Gantmakher.  The Theory of Matrices , 1984 .

[4]  Youngwoo Kim,et al.  A power control structure for multimedia traffic , 1999, 1999 IEEE 49th Vehicular Technology Conference (Cat. No.99CH36363).

[5]  Kamran Kiasaleh,et al.  Integrated voice and video network using variable rate CDMA , 1996, Proceedings of ICC/SUPERCOMM '96 - International Conference on Communications.

[6]  I Chih-Lin,et al.  Variable spreading gain CDMA with adaptive control for true packet switching wireless network , 1995, Proceedings IEEE International Conference on Communications ICC '95.

[7]  Stephen V. Hanly,et al.  An Algorithm for Combined Cell-Site Selection and Power Control to Maximize Cellular Spread Spectrum Capacity (Invited Paper) , 1995, IEEE J. Sel. Areas Commun..