Proper

Abstract

Research works in cognitive radio networks mainly focused on spectrum sharing and sensing, scheduling for single and multi-hop communication systems. Routing is an important issue in multi-hop cognitive radio networks and is responsible for the performance of a network under different network conditions. Recent advances have led to many protocols designed specifically for CRN’S where different approaches are used. In this paper we present a review of various routing protocols for CRN’s like CogLEACH, SEARCH etc.