A Study on Radio Interference Estimation Method for Wireless Relay Network Link Scheduling

Abstract

In time division multiple access (TDMA) based wireless networks, graph coloring based link scheduling mechanisms are often considered to assign time slots to links. A graph coloring based link scheduling mechanism requires a radio interference estimation method to make a conflict graph from a wireless network topology, and the protocol method is usually used among radio interference estimation methods. In this paper, we propose a radio interference estimation method for wireless relay networks, where the network topology is a tree. Through simulation experiments, we show that the accuracy of radio interference estimation with our proposed method is improved compared to that with the protocol method.