An Improved Double-threshold Cooperative Spectrum Sensing Algorithm
Yongxiu Feng, Dengyin Zhang
Available Online July 2015.
- https://doi.org/10.2991/icismme-15.2015.49How to use a DOI?
- cooperative spectrum sensing; double-threshold; energy detection
- 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.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Yongxiu Feng AU - Dengyin Zhang PY - 2015/07 DA - 2015/07 TI - An Improved Double-threshold Cooperative Spectrum Sensing Algorithm BT - 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 - https://doi.org/10.2991/icismme-15.2015.49 ID - Feng2015/07 ER -