SINR-Based Link-Quality Routing Protocol in Multi-Radio Mobile Ad-Hoc Network

Abstract

Radio-diverse paths are made possible due to mobile devices having multiple wireless interfaces. Several multi-radio routing protocols have been studied since they significantly improve throughput by avoiding interferences. Even though existing multiradio routing protocols construct optimal paths considering link quality and radio-diversity, they do not consider changes in link quality due to unexpected interference by any dynamic changes in a network. We propose SINR-based link-quality routing protocol detecting link deterioration based on SINR changes and efficiently reconstructing deteriorated paths in multi-radio MANETs.