Title
Scalable opportunistic forwarding algorithms in delay tolerant networks using similarity hashing
Abstract
Due to intermittent connectivity and uncertain node mobility, opportunistic message forwarding algorithms have been widely adopted in delay tolerant networks (DTNs). While existing work proposes practical forwarding algorithms in terms of increasing the delivery rate and decreasing data overhead, little attention has been drawn to the control overhead induced by the algorithms. The control overhead could, however, make the forwarding algorithms infeasible when the network size scales. In this paper, we are interested in increasing scalability by reducing control overhead, while retaining the state-of-the-art forwarding performances. The basic idea is to use locality-sensitive hashing to map each node as a hash-code, and use these hash-codes to compute the pair-wise similarity that guides the forwarding decisions. The proposed SOFA algorithms have reduced control overhead and competitive forwarding performance, which are verified by extensive real trace-driven simulations.
Year
DOI
Venue
2014
10.1109/SAHCN.2014.6990326
SECON
Keywords
DocType
ISSN
Opportunistic Forwarding,delay tolerant network,Delay Tolerant Networks,hash code,Scalability,cryptography,Simulation,state-of-the-art forwarding performance,pairwise similarity hashing,locality-sensitive hashing,data overhead reduction,SOFA algorithm,uncertain node mobility,real trace-driven simulation,delay tolerant networks,Similarity,control overhead reduction,delivery rate,DTN,scalable opportunistic forwarding algorithm
Conference
2473-0440
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Cong Liu158630.47
Yan Pan217919.23
Ai Chen3403.57
Kaigui Bian492684.05
Jie Wu58307592.07