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Energy-Efficient TCP Operation in Wireless Sensor Networks

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Published/Copyright: December 14, 2007
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PIK - Praxis der Informationsverarbeitung und Kommunikation
From the journal Volume 28 Issue 2

ABSTRACT

Many applications of wireless sensor networks require connectivity to external networks to let monitoring and controlling entities communicate with the sensors. By using the TCP/IP protocols inside the sensor network, external connectivity can be achieved anywhere in the sensor network. In such IP-based sensor networks, TCP can be used for remote management and reprogramming of sensor nodes. However, the high bit error rates in multi-hop sensor networks lead to energy-inefficiencies that reduce the lifetime of the sensor network. This paper introduces and compares two approaches to support energy-efficient operation of TCP in sensor networks: Distributed TCP Caching (DTC) and TCP Support for Sensor networks (TSS). Both concepts allow intermediate sensor nodes to cache TCP segments and to perform local retransmissions in case of errors. This allows reducing the total number of packet transmissions in the sensor network when transferring data to or from a sensor node. DTC caches and immediately forwards TCP data segments, whereas TSS does not forward a cached segment until it knows that the previous segment has been successfully received by the next hop node. We show by simulation that both approaches significantly reduce the number of TCP segment and acknowledgement transmissions. Their performance differs slightly depending on the error rate. Both approaches have also slightly different needs in buffer requirements and TCP options to be supported.

Keywords: Wireless sensor networks; transport layer; reliable data transport; TCP
Published Online: 2007-12-14
Published in Print: 2005-June-20

© Copyright by K.G. Saur Verlag 2005

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  1. Drahtlose Sensornetze
  2. From Algorithms to Sensor Networks
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  4. Precise Positioning with a Low Complexity Algorithm in Ad hoc Wireless Sensor Networks
  5. Data Transport Reliability in Wireless Sensor Networks. A Survey of Issues and Solutions
  6. Energy-Efficient TCP Operation in Wireless Sensor Networks
  7. Enabling Detailed Modeling and Analysis of Sensor Networks
  8. Zuverlässige Intrusion Detection für dynamische Koalitionsumgebungen
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  10. Die FG – Berichte aus den Instituten
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https://doi.org/10.1515/PIKO.2005.93
Keywords for this article
Wireless sensor networks; transport layer; reliable data transport; TCP

Articles in the same Issue

  1. Drahtlose Sensornetze
  2. From Algorithms to Sensor Networks
  3. Kommunikationsaufwand von Verfahren zur Errichtung eines konsistenten Zeitbewusstseins. Eine quantitative Analyse
  4. Precise Positioning with a Low Complexity Algorithm in Ad hoc Wireless Sensor Networks
  5. Data Transport Reliability in Wireless Sensor Networks. A Survey of Issues and Solutions
  6. Energy-Efficient TCP Operation in Wireless Sensor Networks
  7. Enabling Detailed Modeling and Analysis of Sensor Networks
  8. Zuverlässige Intrusion Detection für dynamische Koalitionsumgebungen
  9. Qualitätsmanagement am Rechenzentrum der Universität Stuttgart. Erfahrungsbericht über den Aufbau eines Qualitätsmanagement-Systems
  10. Die FG – Berichte aus den Instituten
  11. Alois Potton hat das Wort
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