상세정보
학술대회
HVR: History-based Vector Routing for Delay Tolerant Networks
- 저자
- 강현우, 김동균
- 발행일
- 200908
- 출처
- International Conference on Computer Communications and Networks (ICCCN) 2009, pp.1-6
- 협약과제
- 09ZH1200, 지능형자동차 전장용 임베디드 시스템 기술 개발, 김광수
- 초록
- In delay tolerant networks (DTNs) with frequent network partitioning, routing packets is a challenge, because the successful establishment of an end-to-end path between source and destination nodes is not guaranteed. Typical routing protocols for DTNs depend on data replications over multiple paths for reliable data delivery. Since they invoke a lot of replicated packets, our previous work introduced a Vector Routing protocol utilizing the vector of node movement in order to reduce such replications. In this paper, we extend the previous work and propose a more efficient Vector Routing protocol to exploit some features of history-based routing protocols where packets are forwarded to nodes with higher probability to meet their destination nodes. Unlike the existing protocols where the number of nodal encounters is used to calculate the probability of forwarding, our proposed protocol allows a node to maintain the vector information of other nodes that it has met and share this information with other nodes. Using the history information, a node predicts the location area of each packet's destination node in order to perform more accurate forwarding. The ns-2 simulations using Random Waypoint and Manhattan Mobility models verify that our protocol achieves better performance in terms of less amount of traffic incurred without loss of packet delivery ratio. © 2009.
- KSP 제안 키워드
- Data Replication, End to End(E2E), History information, Location area, Mobility models, Network Partitioning, Network simulator-2(NS2), Node movement, Ns-2 Simulation, Packet Delivery Ratio, Random Waypoint