A robust channel assignment method for multi-radio networks

Abstract

Cognitive radio networks solve the problem of inefficient spectrum usage by allowing secondary users to share spectrum with primary users. In this paper we introduce and analyze a channel assignment algorithm which is robust to the presence of primary users that could reclaim multiple channels at once. This algorithm can be used in multi-radio multi-channel networks. The analysis of interference helps us to choose the most efficient parameters for our algorithm. By reducing interference, the capacity of the network is improved and this leads to an increased efficiency in communication.