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Opportunistic Routing in Multi-Sink Mobile Ad Hoc Wireless Sensor ...

Opportunistic Routing in Multi-Sink Mobile Ad Hoc Wireless Sensor ...

● Neighborhood

● Neighborhood information is extracted from forwarded beacons ikom - ComNets Simulation Model of ORMMA-WSN Theoretical model (2) ● Best Neighbor Node (BNN) is elected according to MG and RSSI values: – source MG=1 or no neighbors: keep packet – source MG=0 or MG=-1, neighbor MG=1: best NN, route packet – source MG=-1, neighbor MG=0, RSSI_nn > RSSI_src: best NN, route packet – source MG=-1, neighbor MG=-1, neighbor is in sink range: best NN, route packet ● Source and NN in sink range: – RSSI_nn > RSSI_src: route packet – RSSI_src > RSSI_nn, send packet to the sink ● Neighborhood information is expired when Neighbor Node Expiration Time is exceeded ● Neighbor Node is accepted if RSSI_nn > RSSI_threshold

● Sink/Sensor node elements ● Ad-hoc Mode ● Unslotted CSMA/CA, nonbeacon-enabled MAC protocol – modified OpenZB model ● IEEE 802.15.4 PHY characteristics ● ORMMA-WSN at NET layer ● Computation of the power consumption – MICAz model supported ● Frame formats – Data, ACK, NET ikom - ComNets Simulation Model of ORMMA-WSN Node model

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