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Topics in Internet Research

Topics in Internet Research. Energy-Efficient QoS-based routing protocol for Wireless Sensor Networks . FAWAZ SALEEM BOKHARI 05030111. Wireless Sensor Networks (WSN). Special network with large number of nodes equipped with processors, sensors and radios

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Topics in Internet Research

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  1. Topics in Internet Research Energy-Efficient QoS-based routing protocol for Wireless Sensor Networks FAWAZ SALEEM BOKHARI05030111

  2. Wireless Sensor Networks (WSN) • Special network with large number of nodes equipped with processors, sensors and radios • Limited in power, computational capability and memory • Densely deployed • Infrastructure-less • Topology changes very frequently • Broadcast mode of communication • May not have global identification

  3. Applications of WSN • Weather Monitoring • Security and tactical surveillance • Disaster management • Military • Detecting ambient conditions And a lot more …

  4. Node

  5. Protocol Stack

  6. Physical Layer • Simple and robust modulation • Transmission and receiving techniques Data Link Layer • Medium Access Control • Power efficient • Collision avoidance

  7. Network Layer • Takes care of routing the data provide by the transport layer Transport Layer • Helps to maintain the flow of data if application layer requires it

  8. Application Layer • Depending upon sensing task, different application can be built and used in application layer Power Management Plane • Manages how a sensor node uses its power • Power level notification • Turing off the radio

  9. Mobility Management Plane • Detects and registers the movement of sensor nodes, so a route back to user is always maintained • Knowing who the neighbor sensor nodes are Task Management Plane • Balances and schedules the sensing tasks given to a specific region

  10. MAC Layer Protocols • PAMAS • S-MAC • T-MAC • DMAC

  11. Network Layer Protocols Categories: • Flat routing • Hierarchical routing • Location-based routing Classification depending upon the protocol operation: • Multi-path-based • Query-based • Negotiation-based • QoS-based

  12. Network Structure based ProtocolsFlat Routing • Flooding • Gossiping • Sensor Protocols for Information via Negotiation (SPIN) • Directed diffusion

  13. Network Structure based ProtocolsHierarchical Routing • Low Energy Adaptive Clustering Hierarchy (LEACH) • Power-Efficient Gathering in Sensor Information Systems (PEGASIS) • Small Minimum Energy Communication Network (SMECN)

  14. Network Structure based ProtocolsLocation based Routing • Geographic and Energy Aware Routing (GEAR)

  15. Proposal QoS-based routing: • Sequential Assignment Routing (SAR) • Design an Energy-Efficient QoS-based routing protocol

  16. Q & A

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