Buffer Management and Packet Scheduling Algorithm for HFC Networks
Proposed a buffer management and packet scheduling algorithm for HFC networks,which takes limited storage resources of embedded system,limited bandwidth of broadband networks and multi-service flows into consideration.This algorithm manages buffer and bandwidth allocation through controlling the length of the service flow queues and the values of priority functions.It coordinates the relation between buffer management and packet scheduling,which provides different types of data with different services.Simulations prove that the amount of timeout data in real time service flows with the algorithm can be less than that without this algorithm by 89.6%.In addition,the packet loss rate of non-real time service flows with this algorithm can be lower than that without this algorithm by 90%.