Uplink Routing based on High Power Sink in Wireless Sensor Networks
نویسندگان
چکیده
In this paper, we consider a heterogeneous power network (HPN) where an electric-supplied sink uses much higher transmission power than battery-supplied nodes. The HPN potentially enables the sink to directly cover the whole area (i.e., all nodes are within one hop transmission range of the sink). Based on the characteristics, we design a fast and light collection protocol (FLC). FLC allows the sink to fast transmit beacon to all nodes via one hop. Each node finds routing path to the sink using both received signal strength indicator (RSSI) of the beacon and expected number of transmissions (ETX). The performance of the proposed FLC is evaluated by computer simulation and it is shown to achieve significant performance improvement over the state-of-the-art protocol (i.e., collection tree protocol).
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