A Load Balancing Algorithm for Media Server in Distributed Trunking Communication System

Abstract

With the increasing number of users of broadband digital trunking communication systems, the architecture of the digital trunking communication system is shifting from a centralized architecture to a distributed architecture. In order to balance the load of multiple media servers and reduce the delay of voice forwarding in a distributed trunking communication system, this paper proposed a load balancing algorithm for media server in distributed trunking communication system. According to the linear relationship between the load increment of the media server and the number of participants in the call, the algorithm establishes the load prediction model of the media server, predicts and adjusts the load of multiple media servers in the distributed trunking communication system in real time, and selects the media server with the least load for voice rewarding. Theoretical analysis and experimental results show that the algorithm has lower response time and better load balancing effect compared with the traditional load balancing algorithm.