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Connectivity Improvement for Inter-Domain Routing in MANETs

Connectivity Improvement for Inter-Domain Routing in MANETs. You Lu, Biao Zhou, Ian Ku, Mario Gerla UCLA {youlu, zhb, ianku, gerla}@cs.ucla.edu. 1. Outline. Introduction & Previous Work Geo-based Inter-Domain Routing Protocol New Features Balanced Gateway Election Neighbor Priority

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Connectivity Improvement for Inter-Domain Routing in MANETs

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  1. Connectivity Improvement for Inter-Domain Routing in MANETs You Lu, Biao Zhou, Ian Ku, Mario Gerla UCLA {youlu, zhb, ianku, gerla}@cs.ucla.edu 1

  2. Outline • Introduction & Previous Work • Geo-based Inter-Domain Routing Protocol • New Features • Balanced Gateway Election • Neighbor Priority • Gateway Connectivity Improvements • Geo-Routing increased efficient • Reduced Control Overhead • Performance Evaluation • Conclusions 2

  3. Introduction 3

  4. Previous Work Group Mobility One Clusterhead per Group Clusterheads periodically advertise member list Gr A LISTA B LISTB Advertisements propagate via dissemination

  5. Previous Work Geo-based Inter-Domain Routing Protocol Geo-Routing: • Greedy Forwarding or • Direction Forwarding • used when Greedy gets stuck • exploits Cluster Head advertisements 5

  6. New Feature #1: Balanced Gateway Election • Balance between Neighbor’s Number and Neighbor’s Distribution Table 1 Neighbors in different Domains 6

  7. New Feature # 2: Reliable Neighbor Priority 7

  8. Improvements to GIDR 8

  9. Performance Evaluation • Simulation Parameters • Simulator: Qualnet 4.5 • Data traffic: CBR, pkt size 512 byte, pkt interval 0.25s • Dimension: 1000m × 1000m • Mobility model: RPGM • Each node in a domain has a common group motion component. In addition, each node has an individual intra-group motion component • intra-group speed: 0-5m/s • pause time is 10 seconds • Simulation Time: 1000s • PHY/MAC protocol: 802.11b • Metric: Packet Delivery Ratio & Normalized Control Overhead 9

  10. Packet Delivery Ratio vs. Node Velocity 10

  11. Normalized Control Overhead vs. Node Velocity 11

  12. Packet Delivery Ratio vs. Gateway Percentage 12

  13. Normalized Control Overhead vs. Gateway Percentage 13

  14. Packet Delivery Ratio vs. Number of Domain 14

  15. Normalized Control Overhead vs. Number of Domain 15

  16. Conclusions • I-GIDR Features • Proposed a new gateway election that accounts for both the gateway’s neighbor number and neighbor distribution • Concept of Neighbor Priority • Gateway Connectivity Improvements • Geo-Routing increased efficient • Reduced Control Overhead 16

  17. Thanks Q & A 17

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