Radio resource management for uplink channel in cellular WCDMA systems supporting heterogeneous services

In this paper, a novel radio resource management (RRM) scheme is proposed for uplink channel in cellular wideband code division multiple access (WCDMA) systems supporting heterogeneous services. The RRM scheme jointly takes resource allocation at physical layer, link layer and network layer into consideration. In specific, a power distribution criterion at the physical layer is developed by taking multiple access interference (MAI) in the system into consideration. A transmission rate allocation criterion at the link layer is derived which makes use of the randomness and burstiness of the packet generation process. A connection admission control (CAC) scheme is proposed based on the power distribution and rate allocation criteria, where resource reservation for handoff connection is based on the user mobility information. Numerical results show that the proposed RRM can effectively provide guaranteed quality-of-service (QoS) to mobile users while efficiently utilizing the radio resource.