Buffer Management in Cellular IP Networks Using GA

Abstract

Buffer management is very crucial to the Cellular IP networks as its proper use not only increases the throughput of the network but also results in the reduction of call drops. A model for buffer management in Cellular IP network using GA is being proposed in this work. It deals with two kinds of buffers; Gateway buffer and Base Station buffer. This is a two-tier model, where in the first tier a prioritization algorithm is applied for prioritizing real-time packets and to serve them in the buffer of the Gateway within a specified threshold. Remaining packets which couldn't be served after the threshold will be given to the nearest cells of the network to be dealt with in the second part. A GA based procedure is applied here in order to store these packets in the buffer of the base stations. Experiments have been conducted with different numbers of returned packets in order to study the effect of available buffer space on the number of dropped packets and to check the efficiency of the proposed model in reducing dropped packets.