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Towards Energy Efficient, High-speed Communication in WSNs

Attila Nagy ; Olaf Landsiedel (Institutionen för data- och informationsteknik, Nätverk och system (Chalmers) )
Lecture Notes in Computer Science: 33rd Workshop on Computer Safety, Reliability, and Security, SAFECOMP 2014, Florence, Italy, 8-9 September 2014 (0302-9743). Vol. 8696 (2014), p. 63-70.
[Konferensbidrag, refereegranskat]

Traditionally, protocols in wireless sensor networks focus on low-power operation with low data-rates. In addition, a small set of protocols provides high throughput communication. With sensor networks developing into general propose networks, we argue that protocols need to provide both: low data-rates at high energy-efficiency and, additionally, a high throughput mode. This is essential, for example, to quickly collect large amounts of raw-data from a sensor. This paper presents a set of practical extensions to the low-power, low delay routing protocol ORW. We introduce the capability to handle multiple, concurrent bulk-transfers in dynamic application scenarios. Overall, our extensions allow ORW to reach an almost 500% increase in the throughput with less than a 25% increase of the power consumption during a bulk transfer. Thus, we show that instead of developing a new protocol from scratch, we can carefully enhance an existing, energy-efficient protocol with high-throughput extensions. Both the energy-efficient low data-rate mode and the high throughput extensions transparently coexist inside a single protocol.

Nyckelord: high-throughput, opportunistic routing, Wireless Sensor Network, ORW



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Denna post skapades 2015-01-20. Senast ändrad 2016-05-24.
CPL Pubid: 211195

 

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