Radio resource management for quality of service in third generation mobile communications

Third generation mobile communications systems allow multiple mobile users to access and share radio resources. There are two objectives of radio resource management, quality of service for individual users and resource utilization for the system. This paper proposes a mechanism to maximize system throughput while maintaining quality of service for users of wireless data applications. The mechanism uses token bank leaky bucket (TBLB) for QoS provisioning followed by carrier-to-interference (C/I) based radio resource management for optimum system performance. This paper further evaluates the performance of the proposed mechanism with respect to data traffic models and compares it with popular scheduling schemes.

I Introduction

With the rapid convergence of internet and wireless communications, future wireless communications systems will need to support multimedia applications with heterogeneous traffic types. Wireless communications systems allow multiple mobile users to access and share radio channels. The 3^rd generation wireless system supports high quality voice service as well as data services. Advanced scheduling and policing mechanisms are needed to accommodate various voice and data applications with quality of service (QoS) guarantee. Due to the huge investment made in network infrastructure and radio spectrum, it is also important to ensure high utilization of network resources.