Directed diffusion: a scalable and robust communication paradigm for sensor networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Routing with guaranteed delivery in ad hoc wireless networks
Wireless Networks
The Impact of Data Aggregation in Wireless Sensor Networks
ICDCSW '02 Proceedings of the 22nd International Conference on Distributed Computing Systems
Impact of Network Density on Data Aggregation in Wireless Sensor Networks
ICDCS '02 Proceedings of the 22 nd International Conference on Distributed Computing Systems (ICDCS'02)
On delivery guarantees of face and combined greedy-face routing in ad hoc and sensor networks
Proceedings of the 12th annual international conference on Mobile computing and networking
Directional geographical routing for real-time video communications in wireless sensor networks
Computer Communications
The impact of data aggregation on the performance of wireless sensor networks
Wireless Communications & Mobile Computing
Position-based routing in ad hoc networks
IEEE Communications Magazine
IEEE Communications Magazine
Multi-sensor activation for temporally correlated event monitoring with renewable energy sources
International Journal of Sensor Networks
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Though data redundancy can be eliminated at aggregation point to reduce the amount of sensory data transmissions, it introduces new challenges due to multiple flows competing for the limited bandwidth in the vicinity of the aggregation point. On the other hand, waiting for multiple flows to arrive at a centralized node for aggregation not only uses precious memory to store these flows but also increases the delays of sensory data delivery. While traditional aggregation schemes can be characterized as "multipath converging", this paper proposes the use of "multipath expanding" to solve the above problems by exploiting both data fusion and load balancing. We propose a novel directional-controlled fusion (DCF) scheme, which includes two key algorithms, i.e., directional control and multipath fusion. By adjusting a key parameter named multipath fusion factor in DCF, the trade-offs between multipath-converging and multipath-expanding can be easily achieved, in order to satisfy specific QoS requirements from various applications. We present extensive simulations that verify the effectiveness of the proposed scheme.