Broadcast Server Architecture for Wireless Sensor Networks

In the Wireless Sensor Networks Architecture with the existing routing schemes, the downlink communication from Base station to the Sensors is significantly more expensive than that in the uplink direction. In this paper, we propose a new Wireless Sensor Networks Architecture where the Base Station directly communicates to the Sensor Nodes in the downlink direction over the wireless broadcast channels without involving intermediate routing Sensors. This architecture significantly simplifies the downlink communication and helps centralize many energy draining tasks at the resourceful Base Station and communicate results over the wireless broadcast channels. We also qualitatively compare the advantages of the new schemes implemented in this architecture over the existing schemes. This architecture also helps to address several issues which could not be resolved in earlier architectures due to resource deficient sensors.