bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)


2008 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2012

Editorial Calendar 2012

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers journal's cover

Sensors & Transducers Journal 2011

Sensors & Transducers Journal 2010

Sensors & Transducers Journal 2009

Sensors & Transducers Journal 2008

Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents

Best Articles 2011




Vol. 14-2, Special Issue, March 2012, pp.179-195




Evaluation of Hybrid Distributed Least Squares for Improved Localization via Algorithm Fusion in Wireless Sensor Networks



Institute of Applied Microelectronics and Computer Engineering, University of Rostock,

Richard-Wagner Straße 31, 18119 Rostock, Germany

Tel.: +49 381-4987251

E-mail: ralf.behnke@uni-rostock.de, jakob.salzmann@uni-rostock.de, philipp.gorski2@uni-rostock.de, dirk.timmermann@uni-rostock.de



Received: 2 November 2011   /Accepted: 20 December 2011   /Published: 12 March 2012

Digital Sensors and Sensor Sysstems


Abstract: Wireless Sensor Networks (WSNs) have been a growing research domain during the past couple of years. One of the most challenging tasks of WSN research is still location estimation. As a well performing fine grained localization approach, Distributed Least Squares (DLS) was introduced, splitting the localization process in a complex global precalculation and a simple local postcalculation. Nevertheless, as size of precalculation and cost of computation and communication are increasing with the WSN dimensions, it was shown that this algorithm is unsuitable for large ones. This constraint has been overcome by scalable DLS (sDLS). Further, the computational costs of sDLS have been improved by using sDLSne. Unfortunately, sDLSne comes along with decreased localization accuracy and thus represents a tradeoff. The presented hybrid solution combines sDLSne with various coarse grained localization techniques to avoid this drawback. The resulting localization accuracy overcomes the efficient sDLSne approach as well as the more precise sDLS approach, while computational costs still outperforms sDLS.


Keywords: Wireless sensor networks, Localization, Scalability


Acrobat reader logo Click <here> or title of paper to download the full pages article (2.41 Mb)



Sensors & Transducers journal subscription

only 450 $ US per year:




Read more about Wireless Sensors and Wireless Sensor Networks





1999 - 2012 Copyright ©, International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News - Links - Archives - Tools - Voltage-to-Frequency Converters - Standardization - Patents - Marketplace - Projects - Wish List - e-Shop - Sensor Jobs - Membership - Videos - Publishing - Site Map - Subscribe - Search

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Submit Press Release - Submit White Paper - Testimonies - Twitter - Facebook - LinkedIn