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Dynamic Location Update Scheme for Mobile Sinks in Wireless Sensor Networks

Dynamic Location Update Scheme for Mobile Sinks in Wireless Sensor Networks. Sang-Ha Kim, Fucai Yu, Euisin Lee, and Soochang Park Department of Computer Engineering, Chungnam National University, Daejeon, Republic of Korea SENSORCOMM 2010. Outline. Introduction Elastic Routing

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Dynamic Location Update Scheme for Mobile Sinks in Wireless Sensor Networks

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  1. Dynamic Location Update Scheme for Mobile Sinks in Wireless Sensor Networks Sang-Ha Kim, Fucai Yu, Euisin Lee, and Soochang Park Department of Computer Engineering, Chungnam National University, Daejeon, Republic of Korea SENSORCOMM 2010

  2. Outline • Introduction • Elastic Routing • Analysis and Performance Evaluations • Conclusion

  3. Introduction • Geographic Routing exploits pure location information to route data packets toward a static sink • Mobile sink • High energy efficiency • Prolong the network lifetime • Real time • Frequent location update of mobile sinks • Rapid energy consumption • Increased collisions

  4. Introduction • Local flooding based • Utilizesanadaptive area for location update of a mobile sink • Sink moves beyond the adaptive area • Flooding entire network • Constructs new adaptive area

  5. Introduction • Rendezvous points based • Divided into cells(row or column) • Flooding within the same row or column • Sink send interest registration message to the rendezvous points • Source send target registration message to the rendezvous points • The cell where they are overlapped forwards the target report to the sink • Flooding within a row or a column across the entire network • High overhead

  6. Introduction • Grid based • Sink floods a data query message within about a grid cell size area to find the nearest dissemination node , the query message is relayed by a series of dissemination nodes and eventually received by the source • Small grid size • More overhead for the grid construction and maintenance • The bigger the cell size is, the wider the local flooding area is • More flooding overhead

  7. Introduction-motivation • All nodes have the same unit disk radio range • Two nodes are located in the radio range of each other, the channel in between is bidirectional • A node can overhearing transmitting packets in the neighborhood

  8. Elastic Routing • Tracing of Mobile Sink Sink A Source

  9. Elastic Routing • Tracing of Mobile Sink Sink B A Source

  10. Elastic Routing • Tracing of Mobile Sink Sink B A Source

  11. Elastic Routing • Sink Location Propagation Scheme Sink Sink Source B C A CASE 1 Source B C A CASE 3 Sink Source B C A CASE 2

  12. Elastic Routing • Sink Location Propagation Scheme Sink Source B C A

  13. Elastic Routing • Sink Location Propagation Scheme Sink Source B C A

  14. Elastic Routing • Sink Location Propagation Scheme Sink Source B C A

  15. Analysis and Performance Evaluations

  16. Analysis and Performance Evaluations • Control Overhead

  17. Analysis and Performance Evaluations • Energy Consumption

  18. Analysis and Performance Evaluations • Average Delivery Delay

  19. Conclusion • This paper proposed a novel location update scheme for mobile sinks in wireless sensor networks termed Elastic Routing • The location of mobile sink is propagated to source along the reverse path of geographic routing during data delivery Thanksforyourattention

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