Remain Resource Reallocation DRA Algorithm with Multiple QoS Parameters Constraint

摘要

Broadband access network is being regarded as one of the best solutions for the next generation Internet. The Dynamic Resource Allocation (DRA) algorithms play an important role in efficiently allocating the resource in the network. Moreover, the Quality of Service (QoS) is also necessary to support multi services. However, many proposed DRA algorithms which support QoS are focus on cycle process and still unable to solve the problem of system load and packets delay which caused by resource reallocated. Therefore, this paper proposes a QoS Constraint Dynamic Resource Allocation algorithm (QCDRA). The QCDRA realizes the calculation of QoS constraint and resource reallocated value, and quantifies the size of resource allocation which satisfies the constraint conditions. We conduct detailed simulation experiments under the environment of various parameters and compared with other algorithms. Simulation results show that our proposed algorithm can reduce the system load and packets delay about 12% and 8% respectively, and improve the system throughput about 5%.