Cooperative Sensing With Adaptive Sensing Ranges in Cognitive Radio Ad-Hoc Networks

Free registration required

Executive Summary

Cognitive radio has been proposed as an innovative and effective technology to exploit the efficient reuse of the precious radio spectrum. In spectrum sensing which is a crucial step in cognitive radio networks, an adequate sensing range needs to be defined to avoid the hidden transmitter/receiver problems. Moreover, a secondary user may have unreliable detection of the existent primary users due to multipath fading and/or shadowing. To solve these issues, the authors propose a cooperative spectrum sensing scheme with adaptive sensing ranges, especially for the hidden receiver problem.

  • Format: PDF
  • Size: 189.76 KB