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Communication Dans Un Congrès Année : 2009

A Cross-Layer Medium Access Control and Routing Protocol for Wireless Sensor Networks

Résumé

Many contention-based routing protocols in Wireless Sensor Networks (WSN) proposed so far require that the sensor node knows the location or position of all neighbors in its transmission range in order to forward packets in the geographic direction of the destination. Location awareness, gained by localization techniques such as observing beacon messages each node sends out periodically or with the help of Global Positioning System (GPS), is not practical for reasons of cost (in volume, money and power consumption). Therefore, a novel cross-layer integrated medium access control/routing protocol called RSSI-based Forwarding (RBF), based on a Received Signal Strength Indicator (RSSI) as a routing parameter, is proposed for multi-hop WSN. Without using prior knowledge of nodes' geographical locations and without maintaining neighborhood routing tables, the next-hop node for data-forwarding task is determined at the same time as the contention process among the possible forwarding nodes is solved. For an arriving beacon signal transmitted by the sink, received power levels are computed for each sensor node in the network and these levels are then used as a decision parameter for the nodes to contend for the forwarding task of the data packets. Simulation results are presented to evaluate the sensor nodes' end-to-end delay in transmitting the data packets towards the sink.
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Dates et versions

hal-02161417 , version 1 (20-06-2019)

Identifiants

  • HAL Id : hal-02161417 , version 1

Citer

Azlan Awang, Xavier Lagrange, David Ros Sanchez. A Cross-Layer Medium Access Control and Routing Protocol for Wireless Sensor Networks. 10èmes Journées Doctorales en Informatique et Réseaux, Feb 2009, Belfort, France. ⟨hal-02161417⟩
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