A preload cooperative sensing scheme with low overhead in cognitive radio networks
A preload cooperative sensing scheme with low overhead in cognitive radio networks
复制标题
认知无线电网络中低开销的预加载协同感知方案
DOI:
10.1002/wcm.2587
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发表时间:
2016-06
影响因子:
--
通讯作者:
Lu yang
中科院分区:
文献类型:
--
作者:
Liu lizheng;Liu fangai;Lu yang
In cognitive radio networks CRNs, users can collaborate to improve the accuracy of spectrum sensing, but a large number of secondary users reporting their local sensing results may create significant overhead. In this paper, we propose a new pre-sensing scheme, called preload cooperative sensing PCS, which not only attains the given sensing accuracy for CRNs but also reduces the whole sensing time T. In order to reduce the sensing overhead in CRNs, the proposed scheme adopts two key technologies: selective reporting technology and pre-sensing sequential detection technology. Selective reporting technology implies that only those users, which detect the presence of primary users, need to report the results, while pre-sensing sequential detection technology is an asynchronous parallel scheme, which sets a threshold to determine the presence of primary users. Considering the preload sensing slots, we derive a formula to express the overall miss detection probability, and at a given Quality of Service QoS value, the sensing overheads of PCS are analyzed over Rayleigh fading channel. Also, we consider the overhead minimization problems in PCS. Simulation results show the superiority and efficiency of the PCS scheme. Copyright © 2015John Wiley & Sons, Ltd.
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DOI:
10.1109/wcsp.2014.6992169
发表时间:
2014-12
期刊:
2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)
影响因子:
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作者:
Wei Yang
通讯作者:
Wei Yang
DOI:
10.1109/twc.2012.030812.111408
发表时间:
2011-09
期刊:
2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications
影响因子:
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作者:
Adam Noel;R. Schober
通讯作者:
Adam Noel;R. Schober
DOI:
10.1109/glocom.2013.6831233
发表时间:
2013-12
期刊:
2013 IEEE Global Communications Conference (GLOBECOM)
影响因子:
--
作者:
Zeyang Dai;Jian Liu;Chonggang Wang;Keping Long
通讯作者:
Zeyang Dai;Jian Liu;Chonggang Wang;Keping Long
DOI:
10.1109/glocom.2011.6134041
发表时间:
2011-12
期刊:
2011 IEEE Global Telecommunications Conference - GLOBECOM 2011
影响因子:
--
作者:
Jian Liu;Jing Li;Keping Long
通讯作者:
Jian Liu;Jing Li;Keping Long
DOI:
10.1109/iadcc.2014.6779356
发表时间:
2014-03
期刊:
2014 IEEE International Advance Computing Conference (IACC)
影响因子:
--
作者:
Jai Sukh Paul Singh;M. Rai;Jasvir Singh;A. S. Kang
通讯作者:
Jai Sukh Paul Singh;M. Rai;Jasvir Singh;A. S. Kang