On the performance of channel assignment strategies in multi-service wireless cellular networks

One of the key challenges in the design of bandwidth allocation policies for a multi-service mobile cellular network is to guarantee the potentially different quality of service (QoS) requirements from diverse applications, while at the same ensuring that the scarce bandwidth be utilized efficiently. Complete sharing (CS) and dynamic partition (DP) schemes have been shown as viable techniques for managing the bandwidth. However, there has been no study that compares their respective performance, which is the focus of our paper. Specifically, through both analysis and simulation, we demonstrate that both schemes can achieve comparable performance by proper manipulation of control parameters. The tradeoff is that the DP scheme can more easily achieve the target QoS requirement at the expense of over-provisioning, thus can potentially lead to less channel efficiency when compared to a CS based scheme.