A new framework for call admission control in wireless cellular network

Managing the limited amount of the radio spectrum is an important issue with increasing demand of the same. In recent work, we have introduced MAS (Multi-agent System) for channel assignment problem in wireless cellular networks. Instead of using a base station directly for negotiation, a multi-agent system comprising of software agents was designed to work at base station. The system consists of a collection of layers to take care of local and global scenario. In this paper we propose the combination of MAS with a new call admission control (CAC) mechanism based on fuzzy control. This paper aims to provide improvement in QoS parameters using fuzzy control at call admission level. From the simulation studies it is observed that combined approach of Multi-agent system and fuzzy control at initial level improves channel allocation and other QoS factors in an effective and efficient manner. The simulation results are presented on a benchmark 49 cell environment with 70 channels that validate the performance of this approach.