Mobility

Spectrum Sensing for Ad-Hoc Based Cognitive Networks

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Executive Summary

Wireless devices can communicate between each other without existing infrastructure in mobile Ad-hoc network. Ad hoc networks can be used under difficult conditions, where it is difficult to construct infrastructures, such as shadowing areas, disaster areas, war area, and so on. In order to support to considerable and various wireless services, more spectrum resources are needed. However, efficient utilization of the frequency resource is difficult because of spectrum scarcity and the conventional frequency regulation. Ad-hoc networks employing Cognitive Radio (CR) system that guarantee high spectrum utilization provide effective way to increase the network capacity.

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