Brian Blum | University of Virginia (original) (raw)
Address: San Diego, California, United States
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Sensor networks, a novel paradigm in distributed wireless communication technology, have been pro... more Sensor networks, a novel paradigm in distributed wireless communication technology, have been proposed for use in various applications including military surveillance and environmental monitoring. These systems could deploy heterogeneous collections of sensors capable of observing and reporting on various dynamic properties of their surroundings in a time sensitive manner. Such systems suffer bandwidth, energy, and throughput constraints that limit the quantity of information transferred from end to end. These factors cou-pled with unpredictable traffic patterns and dynamic network topologies make the task of designing optimal protocols for such networks difficult. Mechanisms to perform data centric aggregation utilizing application specific knowledge provide a means to augmenting throughput, but have limitations due to their lack of adap-tation and reliance on application specific decisions. We therefore propose a novel aggregation scheme that adaptively performs application independent data aggregation in a time sensitive manner. Our work isolates aggregation decisions into a module that resides between the network and the data link layer and does not require any modifications to the currently existing MAC and network layer protocols. We take advantage of queuing delay and the broadcast nature of wireless communication to concatenate network units into an ag-gregate using a novel adaptive feedback scheme to schedule the delivery of this aggregate to the MAC layer for transmission. In our evaluation we show that end-to-end transmission delay is reduced by as much as 80% under heavy traffic loads. Additionally, we show as much as a 50% reduction in transmission energy con-sumption with the addition of only 2 bytes of header overhead per network unit. Theoretical analysis, simula-tion, and a test-bed implementation on Berkeley��s MICA motes are provided to validate our claims.
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Compact Wireless and Wired Sensing Systems, 2004
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Proceedings of the 9th annual international conference on Mobile computing and networking - MobiCom '03, 2003
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Proceedings. Eighth IEEE Real-Time and Embedded Technology and Applications Symposium, 2002
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Proceedings of the 1st international conference on Mobile systems, applications and services - MobiSys '03, 2003
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24th International Conference on Distributed Computing Systems, 2004. Proceedings., 2004
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Real-Time Systems, 2007
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ACM Transactions on Embedded Computing Systems, 2004
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ACM Transactions on Embedded Computing Systems, 2005
With the proliferation of location dependent applications in sensor networks, location awareness ... more With the proliferation of location dependent applications in sensor networks, location awareness becomes an essential capability of sensor nodes. Because coarse accuracy is sufficient for most sen-sor network applications, solutions in range-free localization are being pursued as a ...
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Sensor networks, a novel paradigm in distributed wireless communication technology, have been pro... more Sensor networks, a novel paradigm in distributed wireless communication technology, have been proposed for use in various applications including military surveillance and environmental monitoring. These systems could deploy heterogeneous collections of sensors capable of observing and reporting on various dynamic properties of their surroundings in a time sensitive manner. Such systems suffer bandwidth, energy, and throughput constraints that limit the quantity of information transferred from end to end. These factors cou-pled with unpredictable traffic patterns and dynamic network topologies make the task of designing optimal protocols for such networks difficult. Mechanisms to perform data centric aggregation utilizing application specific knowledge provide a means to augmenting throughput, but have limitations due to their lack of adap-tation and reliance on application specific decisions. We therefore propose a novel aggregation scheme that adaptively performs application independent data aggregation in a time sensitive manner. Our work isolates aggregation decisions into a module that resides between the network and the data link layer and does not require any modifications to the currently existing MAC and network layer protocols. We take advantage of queuing delay and the broadcast nature of wireless communication to concatenate network units into an ag-gregate using a novel adaptive feedback scheme to schedule the delivery of this aggregate to the MAC layer for transmission. In our evaluation we show that end-to-end transmission delay is reduced by as much as 80% under heavy traffic loads. Additionally, we show as much as a 50% reduction in transmission energy con-sumption with the addition of only 2 bytes of header overhead per network unit. Theoretical analysis, simula-tion, and a test-bed implementation on Berkeley��s MICA motes are provided to validate our claims.
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Compact Wireless and Wired Sensing Systems, 2004
Bookmarks Related papers MentionsView impact
Proceedings of the 9th annual international conference on Mobile computing and networking - MobiCom '03, 2003
Bookmarks Related papers MentionsView impact
Proceedings. Eighth IEEE Real-Time and Embedded Technology and Applications Symposium, 2002
Bookmarks Related papers MentionsView impact
Proceedings of the 1st international conference on Mobile systems, applications and services - MobiSys '03, 2003
Bookmarks Related papers MentionsView impact
24th International Conference on Distributed Computing Systems, 2004. Proceedings., 2004
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Real-Time Systems, 2007
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Bookmarks Related papers MentionsView impact
ACM Transactions on Embedded Computing Systems, 2004
Bookmarks Related papers MentionsView impact
ACM Transactions on Embedded Computing Systems, 2005
With the proliferation of location dependent applications in sensor networks, location awareness ... more With the proliferation of location dependent applications in sensor networks, location awareness becomes an essential capability of sensor nodes. Because coarse accuracy is sufficient for most sen-sor network applications, solutions in range-free localization are being pursued as a ...
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