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
Distributed Detection and Data Fusion
Distributed Detection and Data Fusion
Maximum lifetime routing in wireless sensor networks
IEEE/ACM Transactions on Networking (TON)
Medium access control issues in sensor networks
ACM SIGCOMM Computer Communication Review
Spatial correlation-based collaborative medium access control in wireless sensor networks
IEEE/ACM Transactions on Networking (TON)
Medium access control in wireless sensor networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Proceedings of the 6th international conference on Information processing in sensor networks
Fast communication: Fast filtering of noisy autoregressive signals
Signal Processing
Toward Reliable and Efficient Reporting in Wireless Sensor Networks
IEEE Transactions on Mobile Computing
Balanced-energy sleep scheduling scheme for high-density cluster-based sensor networks
Computer Communications
Energy scaling laws for distributed inference in random fusion networks
IEEE Journal on Selected Areas in Communications - Special issue on stochastic geometry and random graphs for the analysis and designof wireless networks
Energy-efficient routing for signal detection in wireless sensor networks
IEEE Transactions on Signal Processing
IEEE Transactions on Wireless Communications
Distributed energy-efficient cooperative routing in wireless networks
IEEE Transactions on Wireless Communications
Evaluation of likelihood functions for Gaussian signals
IEEE Transactions on Information Theory
Energy-efficient detection in sensor networks
IEEE Journal on Selected Areas in Communications
Energy efficiency of dense wireless sensor networks: to cooperate or not to cooperate
IEEE Journal on Selected Areas in Communications
Cooperative routing for distributed detection in large sensor networks
IEEE Journal on Selected Areas in Communications
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The efficiency of a wireless sensor network (WSN) is dependent on the level of event detection reliability it achieves, and the associated consumed amount of energy. In this work, the potential performance improvement gained by using a routing metric that reflects the quality of links in terms of detection reliability is investigated. As a first main contribution, we derive the expression of such detection reliability-aware link metric considering a realistic multi-dimensional Gaussian autoregressive (AR) model to describe information correlation within the supervised field. Such routing metric quantifies indeed the participation of each link on a path in reducing the probability of error when making final decision at the fusion center (i.e., the sink node). As a second main contribution, we propose that only the new information among the sensed information by the sensor nodes be propagated to the fusion center instead of the whole raw data. As such, the number of packets traversing the network is considerably reduced, which leads to significant energy conservation. To achieve this in a relatively easy way, we use fast filtering to aggregate data information at intermediate nodes along the path to the fusion center. Finally and as a third main contribution, we balance detection reliability and energy-efficiency by including a weighted value of the energy consumption in the expression of the detection reliability-aware link metric. This cooperative routing approach is shown to yield significant benefits to the network, by either increasing the provided QoS (i.e., the offered level of detection reliability) or allowing the network to decrease its energy consumption compared to classical noncooperative routing schemes and the cooperative routing scheme with one-dimensional correlated field.