Routing protocols using directional antennas can utilize knowledge of a direction. For example, these protocols are possible to reduce redundant traffic by controlling a propagation direction of a packet based on the positional relation among nodes. To implement direction-oriented communication protocols, we must make a mechanism to detect the direction from which a packet comes. We construct a communication system equipped with a DOA (Direction Of Arrival) detection mechanism by using GNU Radio and USRP, which decides whether a signal is received from the front or rear. In our system, a node measures RSSIs (Received Signal Strength Indicator) at two directional antennas and detects a DOA by comparing each RSSI. In order to use two directional antennas, one node consists of two USRPs, and each USRP has a directional antenna. To show a usefulness of our system, we implement DORP (Direction Oriented Routing Protocol) which is a routing protocol using a direction of a neighbor and destination node. We show an experiment of a multi-hop wireless communication by a video. In our video, each node can flexibly select a relay node without additional control packets like a route recovery packet by utilizing the direction of neighborhood and destination nodes.


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    Title :

    Demo: Multi-hop wireless communication system to evaluate direction oriented routing protocol


    Contributors:


    Publication date :

    2014-12-01


    Size :

    710265 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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