Owing to the exponential rise in the demand for high data rate communications, massive connectivity requirements in Internet of Things (IoT) based communication applications, and the spectral congestion issues in the traditional radio frequency (RF) based communications, visible light communications (VLC) have garnered attention of academia and industry due to their wide bandwidth, license free spectrum, energy efficiency, and low implementation cost. However, VLC systems are susceptible to interception due to their broadcast nature. In this paper, we investigate the effect of random pulse jamming attacks in indoor VLC systems assuming on-off keying (OOK). The user is assumed to be randomly located, following a uniform distribution, within a circular plane of maximum radius covered by the light emitting diode (LED) transmitter. We derive the cumulative distribution function (CDF) and probability density function (PDF) of the instantaneous signal-to-jamming-plus-noise ratio (SJNR) and the instantaneous signal-to-noise ratio (SNR), depending upon the state of the jammer. Utilizing the statistical characterization of the SJNR and SNR, we derive closed-form expressions of the average bit error rate (ABER) and lower bound on ergodic capacity (EC) of the considered VLC system. Useful insights into the considered VLC system performance are obtained through the impact of various jammer parameters on the system performance metrics.
Performance Analysis of VLC Systems Under Pulse Jamming and Random User Location
2024-06-24
404868 byte
Conference paper
Electronic Resource
English
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