White Space Passive Coherent Location Systems: PCL Based on the Cognitive IEEE 802.22 Standard

The IEEE 802.22 standard specifies the air interface, including the medium access control layer (MAC) and physical layer (PHY), of point-to-multipoint wireless regional area networks (WRAN) comprised of a professional fixed Base Station (BS) with fixed and portable user terminals, referred as the Customer Premise Equipment (CPE) devices. These devices operate in the white spaces in the VHF/UHF TV broadcast bands while avoiding interference to the incumbent broadcast services. This work focuses on a Passive Coherent Location (PCL) system that exploits the signals emitted by IEEE 802.22 devices and is referred hereafter as a White Space PCL (WS-PCL) system. To cope with the very low transmitted Equivalent Isotropically Radiated Power (EIRP) of the IEEE 802.22 emitters, we focus on the design of a WS-PCL system that exploits all the useful signals (emitted from both the BS and CPEs) received in each frame. In this work, we study the feasibility of a WS-PCL system by deriving the Receiver Operating Characteristic (ROC) and defining the multistatic velocity profiling algorithm for the estimation of the target velocity vector. The performance of the proposed receiver is compared to that of a WS-PCL system that exploits only the signal emitted by the BS.