Modeling broadcasting using omnidirectional and directional antenna in delay tolerant networks as an epidemic dynamics

—We study broadcasting of information in a system of moving agents equipped with omnidirectional as well as directional antenna. The agent communication protocol is inspired by the classical SIRS epidemics dynamics. We assume that the antennas of all agents have a fixed transmitting power, while signal reception only occurs when the receivers sense signals with power exceeding a certain threshold. Thus, information exchange is a local phenomenon which depends on the relative distance and antenna orientation between the transmitting and the receiving agent. We derive an expression for the mean broadcasting time and study the information dissemination robustness of the system using elements of classical epidemiology and physics. In particular, we show that the mean broadcasting time depends upon ψ which quantifies the area the radiation pattern of the antenna sweeps as it moves. We report three important observations (a) directional antennas perform better than omnidirectional anten...

• Type: Journal
• Year: 2010
• Where: JSAC
• Authors: Fernando Peruani, A. Maiti, Sanjib Sadhu, Hugues Chate, Romit Roy Choudhury, Niloy Ganguly
• Keywords: Antennas, Directional Antennas, JSAC 2010, SIRS Epidemics Dynamics