Opportunistic networks architecture with fixed infrastructure nodes

Authors:
Yong Zhang;Zhen Wang;Jin Li;Mei Song;Yinglei Teng;Baolin Liu
Affiliations:
Beijing Key Laboratory of Work Safety Intelligent Monitoring, Beijing, P.R.C.,ICN&CAD Center, Beijing University of Posts and Telecommunications, Beijing, P.R.C.;ICN&CAD Center, Beijing University of Posts and Telecommunications, Beijing, P.R.C.;Beijing Information Science & Technology University, Beijing, P.R.C.;ICN&CAD Center, Beijing University of Posts and Telecommunications, Beijing, P.R.C.;ICN&CAD Center, Beijing University of Posts and Telecommunications, Beijing, P.R.C.;ICN&CAD Center, Beijing University of Posts and Telecommunications, Beijing, P.R.C.
Venue:
ICPCA/SWS'12 Proceedings of the 2012 international conference on Pervasive Computing and the Networked World
Year:
2012

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Abstract

To promote the performance of Opportunistic Networks (ONs), novel network architecture with Fixed Infrastructure Nodes (FINs) is proposed. FINs have large storage capacity and short-range wireless communication ability. Two location strategies of FINs are compared in this paper including location at Points of Interest (POIs) and location at hot spots with high traffic. Routing protocol named PROPHET-F is proposed to employ the FINs' ability. The main difference between PROPHET-F and original PROPHET is that FINs own the highest message forwarding priority. FINs can collect all messages carried by the nodes passing by the FINs and transfer to other proper mobile nodes. The performance of this novel architecture is evaluated in ONE simulation platform. The simulation results indicate that Message Delivery Probability (MDP) in ONs with FINs is improved. MDP is higher while FINs are located at hot spots than at POIs. Furthermore, MDP of PROPHET-F protocol is superior to that of PROPHET.