A novel resource reservation scheme for handoff in CDMA wireless cellular networks
Jinfang Zhang, J.W. Mark, Xuemin Shen · 2004
A novel resource reservation scheme for handoff priority in code division multiple access (CDMA) wireless cellular networks is proposed. The reservation scheme is derived by minimizing a grade of service (GoS) objective function which adjoins new call blocking probability and handoff call dropping probability through an arbitrary multiplier. The system capacity is optimized by minimizing the GoS function and jointly taking call level GoS and packet level quality of service (QoS) into consideration. The resultant reservation scheme is implemented adaptively using user mobility information and variation in traffic load. Numerical results show that, with the satisfaction of new call blocking probability and GoS performance, cell capacity and cell utilization are significantly improved relative to a resource reservation scheme in which only the call level characteristics are taken in to account.