Mobility

Throughput-Delay-Reliability Tradeoff in Ad Hoc Networks

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Executive Summary

Delay-Reliability (D-R), and Throughput-Delay-Reliability (T-D-R) tradeoffs in an ad hoc network are derived for single hop and multi-hop transmission with Automatic Repeat reQuest (ARQ) on each hop. The delay constraint is modeled by assuming that each packet is allowed at most D retransmissions end-to-end, and the reliability is defined as the probability that the packet is successfully decoded in at most D retransmissions. The throughput of the ad hoc network is characterized by the transmission capacity, which is defined to be the maximum allowable density of transmitting nodes satisfying a per transmitter receiver rate, and an outage probability constraint, multiplied with the rate of transmission and the success probability.

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