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Study on Social Routing Algorithm in Delay and Disruption Tolerant Networks

Author: ShiZiBo
Tutor: ShuYanTai
School: Tianjin University
Course: Applied Computer Technology
Keywords: / Content off the network delay tolerant Routing Social networks Mobility Model
CLC: TN92
Type: Master's thesis
Year: 2010
Downloads: 62
Quote: 0
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Abstract


The Delay Tolerant / Yung breaking new wireless network is a does not meet the basic assumptions of the Internet network . Delay Tolerant / content off the network typically lack stable end - to - end connectivity, higher transmission delay . Difficult to achieve delay tolerant / capacity to break the data transmission in the network using a traditional wireless network routing protocols . Therefore, the study has to store a carry forward \Asynchronous routing algorithms rely mainly on node mobile data forwarding . In real life , the mobile network nodes model has a certain degree of social . Due to the influence of family, faith , hobbies and other social factors , with similar social relations node usually converging integration group . In this network topology , the node distribution of the group more intensive , more sparse distribution node between groups . The response node uneven distribution of delay tolerant / content off the network , the introduction of social network theory (Social Network) asynchronous routing algorithm design , and a new social routing protocol SRF . The algorithm uses directional forwarding strategy to achieve the forwarding of messages node group . When forwarding messages between different groups of nodes , the algorithm based on social network theory , compute nodes on different nodes of group social familiarity to predict node movement trends . Current node forwards the message to the given destination group familiar with the highest degree of neighbor nodes . Message forwarding mode , the algorithm uses different messages discarded rules , effective management node cache . Achieve the function of the routing protocol modules on the simulation platform NS-2 , including the message forwarding mechanism, the cache management strategies , and node information for maintenance . In this paper, a social mobile model the control node sports scene closer to reality simulation . Finally, multiple scene simulation . Simulation results show that the routing algorithm proposed in this paper under different scenarios are capable of achieving higher delivery ratio , and can effectively reduce the transmission delay and network overhead .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications
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