Cooperative MIMO Based Reporting System for IEEE 802.22 Standard Over Fading Channels

As cooperative spectrum sensing improves the detection probability, the multiple-input multiple-output (MIMO) system spatially transmits multiple copy of data independently to improve capacity and the IEEE 802.22 wireless regional area network standard aims to utilize the digital video broadcasting-terrestrial (DVB-T) bands opportunistically for data communication to the rural area, we consider a cooperative MIMO based reporting system where the cognitive radio users forward the DVB-T signal to the fusion center (FC) using time division multiple access. The network is operating over AWGN sensing channel and the reporting channel experiences an independent and identically distributed Rayleigh, Rician fading. We arrive an expression for average detection probability at FC for maximum ratio combining scheme. We consider the FC has the prior knowledge about the reporting channel. We analyze the system performance under various MIMO scenarios through Monte Carlo simulations.

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