Next Article in Journal
Impact of Indoor Environment on Path Loss in Body Area Networks
Previous Article in Journal
Gas Sensitivity and Sensing Mechanism Studies on Au-Doped TiO2 Nanotube Arrays for Detecting SF6 Decomposed Components
Article Menu

Export Article

Open AccessArticle
Sensors 2014, 14(10), 19533-19550; doi:10.3390/s141019533

A Robust and Energy-Efficient Transport Protocol for Cognitive Radio Sensor Networks

Department of Computer Engineering, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 501-759, Korea
*
Author to whom correspondence should be addressed.
Received: 15 August 2014 / Revised: 24 September 2014 / Accepted: 14 October 2014 / Published: 20 October 2014
(This article belongs to the Section Sensor Networks)
View Full-Text   |   Download PDF [1291 KB, uploaded 20 October 2014]   |  

Abstract

A cognitive radio sensor network (CRSN) is a wireless sensor network in which sensor nodes are equipped with cognitive radio. CRSNs benefit from cognitive radio capabilities such as dynamic spectrum access and transmission parameters reconfigurability; but cognitive radio also brings additional challenges and leads to higher energy consumption. Motivated to improve the energy efficiency in CRSNs, we propose a robust and energy-efficient transport protocol (RETP). The novelties of RETP are two-fold: (I) it combines distributed channel sensing and channel decision with centralized schedule-based data transmission; and (II) it differentiates the types of data transmission on the basis of data content and adopts different acknowledgment methods for different transmission types. To the best of our knowledge, no transport layer protocols have yet been designed for CRSNs. Simulation results show that the proposed protocol achieves remarkably longer network lifetime and shorter event-detection delay compared to those achieved with a conventional transport protocol, while simultaneously preserving event-detection reliability. View Full-Text
Keywords: cognitive radio sensor network; transport protocol; energy efficiency; network lifetime; event-detection delay cognitive radio sensor network; transport protocol; energy efficiency; network lifetime; event-detection delay
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Salim, S.; Moh, S. A Robust and Energy-Efficient Transport Protocol for Cognitive Radio Sensor Networks. Sensors 2014, 14, 19533-19550.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top