PEAS: A Robust Energy Conserving Protocol for Long-lived Sensor Networks
ICDCS '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
Efficient algorithms for maximum lifetime data gathering and aggregation in wireless sensor networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
On the Fundamental Capacity and Lifetime Limits of Energy-Constrained Wireless Sensor Networks
RTAS '04 Proceedings of the 10th IEEE Real-Time and Embedded Technology and Applications Symposium
Maximum lifetime routing in wireless sensor networks
IEEE/ACM Transactions on Networking (TON)
Lifetime Modeling of a Sensor Network
Proceedings of the conference on Design, Automation and Test in Europe - Volume 1
Maximum Lifetime of Sensor Networks with Adjustable Sensing Range
SNPD-SAWN '06 Proceedings of the Seventh ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing
Maximizing the functional lifetime of sensor networks
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Maximizing Network Lifetime for Connected Target Coverage in Wireless Sensor Networks
WIMOB '06 Proceedings of the 2006 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications
Coverage and Lifetime Optimization of Wireless Sensor Networks with Gaussian Distribution
IEEE Transactions on Mobile Computing
SCALCOM-EMBEDDEDCOM '09 Proceedings of the 2009 International Conference on Scalable Computing and Communications; Eighth International Conference on Embedded Computing
Improved Approximation Algorithms for Maximum Lifetime Problems in Wireless Networks
Algorithmic Aspects of Wireless Sensor Networks
Improving network lifetime with mobile wireless sensor networks
Computer Communications
Minimizing delay and maximizing lifetime for wireless sensor networks with anycast
IEEE/ACM Transactions on Networking (TON)
Optimal number of annuli for maximizing the lifetime of sensor networks
Journal of Parallel and Distributed Computing
| Hi-index | 0.00 |
We consider the problem of optimal energy allocation and lifetime maximization in heterogeneous wireless sensor networks. We construct a probabilistic model for heterogeneous wireless sensor networks where sensors can have different sensing range, different transmission range, different energy consumption for data sensing, and different energy consumption for data transmission, and the stream of data sensed and transmitted from a sensor and the stream of data relayed by a sensor to a base station are all treated as Poisson streams. We derive the probability distribution and the expectation of the number of data transmissions during the lifetime of each sensor and the probability distribution and the expectation of the lifetime of each sensor. In all these analysis, energy consumption of data sensing and data transmission and data relay are all taken into consideration. We develop an algorithm to find an optimal initial energy allocation to the sensors such that the network lifetime in the sense of the identical expected sensor lifetime is maximized. We show how to deal with a large amount of energy budget that may cause excessive computational time by developing accurate closed form approximate expressions of sensor lifetime and network lifetime and optimal initial energy allocation. We derive the expected number of working sensors at any time. Based on such results, we can find the latest time such that the expected number of sensors that are still functioning up to that time is above certain threshold.