IMPROVED DISTRIBUTED HETEROGENEOUS NEIGHBOR DISCOVERY IN WIRELESS NETWORKS

Abstract — The first steps in configuring and managing a wireless network is Neighbor discovery. Neighbour discovery is an important step in forming a autonomous wireless ad hoc network without any support from an existing communication utilities. Initially nodes may have no knowledge of other nodes in advance that they can communicate with directly. When this problem of Neighbor discovery is solved, its result can be used to solve other important communication problems such as medium access control, clustering, collision free scheduling, and topology control. The recently emerged technology Cognitive radio (CR) has a promising approach to improve the available spectrum utilization efficiency so as to meet the increased demand for wireless communication, which attempts to search for unused or underutilized channels in the spectrum by scanning the part of wireless spectrum