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ACM Transactions on Sensor Networks (TOSN), Volume 2 Issue 2, May 2006

Power-efficient sensor placement and transmission structure for data gathering under distortion constraints
Deepak Ganesan, Răzvan Cristescu, Baltasar Beferull-Lozano
Pages: 155-181
DOI: 10.1145/1149283.1149284
We consider the joint optimization of sensor placement and transmission structure for data gathering, where a given number of nodes need to be placed in a field such that the sensed data can be reconstructed at a sink within specified distortion...

Decentralized energy-conserving and coverage-preserving protocols for wireless sensor networks
Chi-Fu Huang, Li-Chu Lo, Yu-Chee Tseng, Wen-Tsuen Chen
Pages: 182-187
DOI: 10.1145/1149283.1149285
In this article, we propose several decentralized protocols that schedule sensors' active and sleeping periods to prolong the network lifetime while maintain the sensing field sufficiently covered. The proposed protocols are based on a model similar...

Semidefinite programming based algorithms for sensor network localization
Pratik Biswas, Tzu-Chen Lian, Ta-Chung Wang, Yinyu Ye
Pages: 188-220
DOI: 10.1145/1149283.1149286
An SDP relaxation based method is developed to solve the localization problem in sensor networks using incomplete and inaccurate distance information. The problem is set up to find a set of sensor positions such that given distance constraints are...

Models and solutions for radio irregularity in wireless sensor networks
Gang Zhou, Tian He, Sudha Krishnamurthy, John A. Stankovic
Pages: 221-262
DOI: 10.1145/1149283.1149287
In this article, we investigate the impact of radio irregularity on wireless sensor networks. Radio irregularity is a common phenomenon that arises from multiple factors, such as variance in RF sending power and different path losses, depending on...

Optimal real-time sampling rate assignment for wireless sensor networks
Xue Liu, Qixin Wang, Wenbo He, Marco Caccamo, Lui Sha
Pages: 263-295
DOI: 10.1145/1149283.1149288
How to allocate computing and communication resources in a way that maximizes the effectiveness of control and signal processing, has been an important area of research. The characteristic of a multi-hop Real-Time Wireless Sensor Network raises new...