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In this paper, energy detector's performance is investigated for the blind (fixed gain) amplify & forward (AF) dual-hop relay networks using the area under the receiver operating characteristic curve (AUC) metric. Different from the well-known receiver operating characteristics (ROC) metric, AUC is a single statistical parameter which can be used to describe and compare performance of different...
Reliable spectrum sensing is the very task upon which the entire operation of cognitive radio rests. Blind sensing of spectral-holes using a radiometer (energy detectors) is one of the solutions that have been proposed for enabling opportunistic spectrum access. This article revisits the problem of energy detection of an unknown deterministic signal over a myriad of fading environments. Specifically,...
A simple measurement to analyze the signal detector's performance is desirable. Although, receiver operating characteristic (ROC) curve has long been used for characterizing system performance, area under the ROC curve (AUC) measurement provides meaningful insights of the system performance. Signal detector's performance can be characterized simply by average AUC, since average AUC varies from 0.5...
In this paper, a numerical method is presented to evaluate the bit error rate (BER) of different Orthogonal Space-Time Block Codes (OSTBCs) over Rayleigh fading channel for different transmission bit rate. The comparisons of Orthogonal Space-Time Block Codes are made with the equivalent uncoded Single-Input Single-Output (SISO) channel and uncoded space diversity. The result shows that a full rate...
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