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Abstract
A two-hop wireless regional area network (WRAN) providing monitoring services operating in Television White Space (TVWS), i.e., IEEE P802.22b, may employ a great number of subscriber customer-premises equipments (S-CPEs) possibly without mains power supply, leading to requirement of cost-effective a
Highlights
With the explosive growth of broadband wireless users and services, the current spectrum for wireless communications becomes more and more congested
In order to save energy and bandwidth for a P802.22b system that employs a great number of SCPEs that may be powered by batteries, we propose only the subscriber customer-premises equipments (S-CPEs) with detected primary signal-to-noise ratio (SNR) higher than a threshold to report the sensing results to a relay CPE (R-CPE)
For the proposed cooperative spectrum sensing (CSS) scheme to P802.22b, we propose that at a R-CPE, the fused detection probability Qd should be higher than 90% and the fused false alarm probability Qf should be lower than 10%
Summary
With the explosive growth of broadband wireless users and services, the current spectrum for wireless communications becomes more and more congested. In order to save energy and bandwidth for a P802.22b system that employs a great number of SCPEs that may be powered by batteries, we propose only the S-CPEs with detected primary signal-to-noise ratio (SNR) higher than a threshold to report the sensing results to a R-CPE. The regional services include real-time and near real-time monitoring, emergency broadband services, remote medical diagnose, etc, where a great number of subscriber terminals with simpler design and lower cost are needed but are not supported by 802.222011 For this consideration, IEEE P802.22b is to amend IEEE Std 802.22-2011 by introducing new class CPEs, i.e., R-CPEs and S-CPEs. An S-CPE is of lower capability, for example, lower transmission power, lower antenna height, and lower-gain/cost amplifier, etc. For an S-CPE without upstream bandwidth allocation, it needs to report in the UCS Notification window using contention or code-division multiplexing access (CDMA)
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