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We investigate the secrecy connectivity in visible light communication in the presence of randomly located eavesdroppers. We apply spatial point processes to characterize the unknown eavesdropper locations. The closed-form of the secrecy outage probability is derived as a function of the density of eavesdroppers. The analysis is verified by Monte Carlo simulations. Furthermore, we suggest an LED transmitter...
We study wireless ad hoc networks in the absence of any channel contention or transmit power control and ask how antenna directivity affects network connectivity in the interference limited regime. We answer this question by deriving closed-form expressions for the outage probability, capacity and mean node degree of the network using tools from stochastic geometry. These novel results provide valuable...
In this paper, the problem of efficiently allocating wireless resources to support multiple scalable video sequences over a downlink cognitive radio network is addressed. We consider the coarse grain scalable (CGS) and medium grain scalable (MGS) extension of the H.264 standard as the encoding method and propose to perform a per-subcarrier transmit antenna selection such that spatial diversity is...
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