A transmission control scheme for media access in sensor networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Wireless Sensor Networks: An Information Processing Approach
Wireless Sensor Networks: An Information Processing Approach
EURASIP Journal on Wireless Communications and Networking
Distributed environmental monitoring using random sensor networks
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
An application-specific protocol architecture for wireless microsensor networks
IEEE Transactions on Wireless Communications
IEEE Communications Magazine
Energy efficiency of dense wireless sensor networks: to cooperate or not to cooperate
IEEE Journal on Selected Areas in Communications
Scalable routing protocols for mobile ad hoc networks
IEEE Network: The Magazine of Global Internetworking
Area Throughput of an IEEE 802.15.4 Based Wireless Sensor Network
EWSN '09 Proceedings of the 6th European Conference on Wireless Sensor Networks
Maximizing area throughput in clustered wireless sensor networks
IEEE Journal on Selected Areas in Communications - Special issue on simple wireless sensor networking solutions
Random field estimation with delay-constrained and delay-tolerant wireless sensor networks
EURASIP Journal on Wireless Communications and Networking - Special issue on signal processing-assisted protocols and algorithms for cooperating objects and wireless sensor networks
DyDAP: A dynamic data aggregation scheme for privacy aware wireless sensor networks
Journal of Systems and Software
Cluster size optimization in sensor networks with decentralized cluster-based protocols
Computer Communications
Towards the design of efficient nonbeacon-enabled ZigBee networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
An efficient sleep protocol for lifetime enhancement in multi covered and multi connected WSNs
Proceedings of the International Conference on Advances in Computing, Communications and Informatics
Robust power allocation for energy-efficient location-aware networks
IEEE/ACM Transactions on Networking (TON)
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In this paper, the estimation of a scalar field over a bidimensional scenario (e.g., the atmospheric pressure in a wide area) through a self-organizing wireless sensor network (WSN) with energy constraints is investigated. The sensor devices (denoted as nodes) are randomly distributed; they transmit samples to a supervisor by using a clustered network. This paper provides a mathematical framework to analyze the interdependent aspects of WSN communication protocol and signal processing design. Channel modelling and connectivity issues, multiple access control and routing, and the role of distributed digital signal processing (DDSP) techniques are accounted for. The possibility that nodes perform DDSP is studied through a distributed compression technique based on signal resampling. The DDSP impact on network energy efficiency is compared through a novel mathematical approach to the case where the processing is performed entirely by the supervisor. The trade-off between energy conservation (i.e., network lifetime) and estimation error is discussed and a design criterion is proposed as well. Comparison to simulation outcomes validates the model. As an example result, the required node density is found as a trade-off between estimation quality and network lifetime for different system parameters and scalar field characteristics. It is shown that both the DDSP technique and the MAC protocol choice have a relevant impact on the performance of a WSN.