Engineering Research Publication
Wireless devices have lower bandwidth and wireless devices are mobile and therefore the topology of the network changes rather frequently. As consequences, algorithms for wireless and mobile networks should have: little communication as possible and should run as fast as possible. Both goals can only be achieved by developing algorithms requiring a small number of communication rounds only. Given an aggregation tree and query workload, find an energy-efficient result propagation scheme in-network processing. Sensor network is power (and bandwidth) constrained local computation is much cheaper than communication.