bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)


2008 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2011

Editorial Calendar 2011

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers journal's cover

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 2010




Vol. 130, Issue 7, July 2011, pp.23-37




Outage and Energy Performance of Layered CDMA Wireless Sensor Network with Space Diversity



1, 2 Central Mechanical Engineering Research Institute (CSIR), Durgapur-713209, India

3 National Institute of Technology, Durgapur-713209, India

Tel.: ++91-343-6510253

E-mail: 1 uma_datta58@yahoo.in, 2 pk_sahu_2k@yahoo.com, 3 sumit.kundu@ece.nitdgp.ac.in


Received: 24 June 2011   /Accepted: 22 July 2011   /Published: 29 July 2011

Handbook of Laboaratory Measurements book


Abstract: Space diversity using antenna array is a promising technique to combat fading and enhance signal quality. In this paper we investigate the performance of a single hop CDMA wireless sensor network employing space diversity at sink. We present a framework to evaluate the performance of such network in terms of outage, bit error rate (BER), and energy consumption for successful delivery of fixed length packet in presence of large scale fading. Two kinds of interference namely multiple access interference (MAI) and node interference (NI) are considered and an infinite automatic repeat request (ARQ) is assumed for successful delivery of packetized data between source and sink via single hop. The effects of node density, correlation amongst signal and interferers, power control error, processing gain, and space diversity on overall performance in terms of outage, and energy consumption are investigated. Further we evaluate the sink capacity which is the maximum number sensor nodes located within one hop layer of sink and concurrently transmitting to it while maintaining a BER threshold. The impact of node interferers and antenna diversity on the sink capacity is also indicated.


Keywords: Layered architecture, Outage probability, Bit error rate, Correlation, Power control, Sink capacity, Processing gain, Antenna diversity


Acrobat reader logo Click <here> or title of paper to download the full pages article (1.11 Mb)



Read more about Wireless Sensors






1999 - 2011 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News - Links - Archives - Tools - Standardization - Patents - Marketplace - Projects - Wish List - Subscribe - Membership - IFSA Publishing - Submit Press Release - Twitter - Search

 Members Area -Sensors Portal - Voltage-to-Frequency Converters - Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Sensor Jobs - e-Shop - Site Map - Video