Buffer Management in Cellular IP Network using PSO

Abstract

Cellular IP networks deal with the concepts of micro-mobility. Buffer management in Cellular IP networks is very crucial as its proper usage not only increases the throughput of the network but also results in the reduction of the call drops. This article proposes a model for buffer management in Cellular IP network using Particle Swarm Optimization (PSO), an evolutionary computational method often used to solve hard problems. The model considers two kinds of buffers; Gateway buffer and Base Station buffer. In the proposed two-tier model, the first tier applies a prioritization algorithm for prioritizing real-time packets in the buffer. In the second tier PSO algorithm is used on a swarm of cells in the network. PSO is applied for a given time slot, called window. In each window period the swarm can store number of packets depending on the window size and the total number of packets. The effect of various parameters e.g. number of packets, size of packets, window size, and a threshold value on buffer utilization has been studied by conducting the simulation experiments.

Router CPU Time Management in Cellular IP Networks using GA

“…for the generated individuals (solutions) according to equation (2 generations. When a flow consisting of N packets enters the network through the gateway routed to a correspondent node in the network, it has to pass through many routers on hop-by-hop basis until it reaches to the destination.…”

“…Resource reservation includes the most important resources in the network such as the bandwidth [1] and buffer [2]. Resource Reservation Protocol (RSVP) is a common protocol for resource reservation [3].…”