An Improved Double-threshold Cooperative Spectrum Sensing Algorithm

DOI

10.2991/icismme-15.2015.49How to use a DOI?

Keywords

cooperative spectrum sensing; double-threshold; energy detection

Abstract

In order to improve the detection performance of double-threshold cooperative spectrum sensing scheme (DCSS), we provide an improved double-threshold cooperative spectrum sensing algorithm (IDCSS). Differing from DCSS, IDCSS doesn’t always need all CR users send their local sensing message to FC. In IDCSS, fusion center (FC) successively merges the sensing results from each Cognitive Radio (CR) user and meanwhile makes the decision that whether the primary user (PU) is present or not depending on current-received sensing results. Once FC can determine that PU is present, it will broadcast this message to all CR users. Then those users which still wait for sending their sensing results will stop the sending behavior. Otherwise, FC receives and merges the next CR user’s sensing result continuously. Simulation results show that the IDCSS can achieve better detection performance with smaller data overhead than the DCSS.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yongxiu Feng
AU  - Dengyin Zhang
PY  - 2015/07
DA  - 2015/07
TI  - An Improved Double-threshold Cooperative Spectrum Sensing Algorithm
BT  - Proceedings of the First International Conference on Information Sciences, Machinery, Materials and Energy
PB  - Atlantis Press
SP  - 250
EP  - 253
SN  - 1951-6851
UR  - https://doi.org/10.2991/icismme-15.2015.49
DO  - 10.2991/icismme-15.2015.49
ID  - Feng2015/07
ER  -