Minimizing Detection Probability Routing in Ad Hoc Networks Using Directional Antennas

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Executive Summary

In a hostile environment, it is important for a transmitter to make its wireless transmission invisible to adversaries because an adversary can detect the transmitter if the received power at its antennas is strong enough. This paper defines a detection probability model to compute the level of a transmitter being detected by a detection system at arbitrary location around the transmitter. The authors' study proves that the probability of detecting a directional antenna is much lower than that of detecting an omni-directional antenna if both the directional and omni-directional antennas provide the same Effective Isotropic Radiated Power (EIRP) in the direction of the receiver.

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