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ACM Transactions on Sensor Networks (TOSN), Volume 5 Issue 4, November 2009

Temporal privacy in wireless sensor networks: Theory and practice
Pandurang Kamat, Wenyuan Xu, Wade Trappe, Yanyong Zhang
Article No.: 28
DOI: 10.1145/1614379.1614380

Although the content of sensor messages describing “events of interest” may be encrypted to provide confidentiality, the context surrounding these events may also be sensitive and therefore should be protected from eavesdroppers. An...

CMAC: An energy-efficient MAC layer protocol using convergent packet forwarding for wireless sensor networks
Sha Liu, Kai-Wei Fan, Prasun Sinha
Article No.: 29
DOI: 10.1145/1614379.1614381

Low duty cycle operation is critical to conserve energy in wireless sensor networks. Traditional wake-up scheduling approaches either require periodic synchronization messages or incur high packet delivery latency due to the lack of any...

Target tracking with binary proximity sensors
Nisheeth Shrivastava, Raghuraman Mudumbai, Upamanyu Madhow, Subhash Suri
Article No.: 30
DOI: 10.1145/1614379.1614382

We explore fundamental performance limits of tracking a target in a two-dimensional field of binary proximity sensors, and design algorithms that attain those limits while providing minimal descriptions of the estimated target trajectory. Using...

Connectivity-based localization of large-scale sensor networks with complex shape
Sol Lederer, Yue Wang, Jie Gao
Article No.: 31
DOI: 10.1145/1614379.1614383

We study the problem of localizing a large sensor network having a complex shape, possibly with holes. A major challenge with respect to such networks is to figure out the correct network layout, that is, avoid global flips where a part of the...

Optimal base station placement in wireless sensor networks
Yi Shi, Y. Thomas Hou
Article No.: 32
DOI: 10.1145/1614379.1614384

Base station location has a significant impact on network lifetime performance for a sensor network. For a multihop sensor network, this problem is particularly challenging due to its coupling with data routing. This article presents an...

Ultra-low power data storage for sensor networks
Gaurav Mathur, Peter Desnoyers, Paul Chukiu, Deepak Ganesan, Prashant Shenoy
Article No.: 33
DOI: 10.1145/1614379.1614385

Local storage is required in many sensor network applications, both for archival of detailed event information, as well as to overcome sensor platform memory constraints. Recent gains in energy efficiency of new-generation NAND flash storage have...

Robust and distributed stochastic localization in sensor networks: Theory and experimental results
Ioannis Ch. Paschalidis, Dong Guo
Article No.: 34
DOI: 10.1145/1614379.1614386

We present a robust localization system allowing wireless sensor networks to determine the physical location of their nodes. The coverage area is partitioned into regions and we seek to identify the region of a sensor based on observations by...

Multihop/Direct Forwarding (MDF) for static wireless sensor networks
Jing Deng
Article No.: 35
DOI: 10.1145/1614379.1614387

The success of Wireless Sensor Networks (WSNs) depends largely on efficient information delivery from target areas toward data sinks. The problem of data forwarding is complicated by the severe energy constraints of sensors in WSNs. In this work,...

On meeting lifetime goals and providing constant application quality
Andreas Lachenmann, Klaus Herrmann, Kurt Rothermel, Pedro José Marrón
Article No.: 36
DOI: 10.1145/1614379.1614388

Most work in sensor networks tries to maximize network lifetime. However, for many applications the required lifetime is known in advance. Therefore, application quality should rather be maximized for that given time.Levels, the approach...