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Decentralized control for optimal energy-delay tradeoff in cooperative relay communications
 

Summary: Decentralized control for optimal energy-delay
tradeoff in cooperative relay communications
Deepanshu Vasal and Achilleas Anastasopoulos
Department of Electrical Engineering and Computer Science
University of Michigan
Ann Arbor, Michigan 48105
Email: {dvasal, anastas}@umich.edu
Abstract--In a multi-hop cooperative communication scenario,
where a transmitter can transmit a packet directly to the receiver
or indirectly through a relay, there is an inherent trade-off
between energy and delay. While it may consume more energy
to transmit a packet directly to the receiver than transmitting
through a relay, the transmission through relay incurs more
delay.
We consider the MAC layer of a transmission scheme involving
a transmitter, a receiver and a relay, where average delay is
related to the queue size of the transmitter and relay. We pose
this problem as an infinite horizon stochastic control problem in
a decentralized setup where the information about the queue
size of a node is not available to the other node. We prove

  

Source: Anastasopoulos, Achilleas - Department of Electrical Engineering and Computer Science, University of Michigan

 

Collections: Engineering; Computer Technologies and Information Sciences