Location- and Service-Aware Downlink Transmission Power Allocation in WCDMA-Based Cellular Networks

Power constitutes an essential controllable resource for the improvement of the radio link performance in WCDMA-based cellular networks. In addition, complementary to traditional services, location based services (LBS) have emerged as a growing area for mobile service providers bringing in the foreground the potential for a locationaware resource management. To this effect, this paper addresses a location and service-aware, downlink transmission power allocation problem (DTPA), the solution of which is suitable for the management or control domain of multiservice, WCDMA-based cellular networks. Given a specific traffic load situation that includes location and required service information, the solution of the DTPA problem aims at finding the optimum feasible allocation of power to the set of downlink connections that should be supported by the system. The problem is concisely defined, mathematically formulated and solved by a computationally efficient algorithm. Simulation and numerical results are presented.