Title
Optimal Energy-Aware Epidemic Routing in DTNs
Abstract
In this work, we investigate the use of epidemic routing in energy constrained delay tolerant networks (DTNs). In epidemic routing, messages are relayed by intermediate nodes at contact opportunities, i.e., when pairs of nodes come within the transmission range of each other. Each node needs to decide whether to forward its message upon contact with a new node based on its own residual energy level and the age of that message. We mathematically characterize the fundamental trade-off between energy conservation and a measure of Quality of Service as a dynamic energy-dependent optimal control problem. We prove that in the mean-field regime, the optimal dynamic forwarding decisions follow simple threshold-based structures in which the forwarding threshold for each node depends on its current remaining energy. We then characterize the nature of this dependence. Our simulations reveal that the optimal dynamic policy significantly outperforms heuristics.
Year
DOI
Venue
2015
10.1109/TAC.2015.2396641
IEEE Transactions on Automatic Control
Keywords
Field
DocType
dtn,energy-based epidemic routing,stratified optimal control,threshold-based forwarding
Energy conservation,Mathematical optimization,Optimal control,Dynamic Source Routing,Policy-based routing,Static routing,Computer network,Heuristics,Throughput,Routing table,Mathematics
Journal
Volume
Issue
ISSN
PP
99
0018-9286
Citations 
PageRank 
References 
9
0.52
20
Authors
5
Name
Order
Citations
PageRank
Soheil Eshghi1586.46
M. H. R. Khouzani218214.59
Saswati Sarkar3117297.57
N. B. Shroff46994519.23
Santosh S. Venkatesh538171.80