Web Hosting Articles

  Home arrow Web Hosting Articles arrow Page 2 - Wireless Sensor Networks pt 1: Introdu...
Web Hosting Articles  
Web Hosting FAQs  
Web Hosting How-Tos  
Web Hosting News  
Web Hosting Reviews  
Web Hosting Security  
Weekly Newsletter 
 
Developer Updates  
Free Website Content 
 RSS  Articles
 RSS  Forums
 RSS  All Feeds
Write For Us 
Contact Us 
Site Map 
Privacy Policy 
Support 
 USERNAME
 
 PASSWORD
 
 
  >>> SIGN UP!  
  Lost Password? 
WEB HOSTING ARTICLES

Wireless Sensor Networks pt 1: Introduction
By: Eliana Stavrou
  • Search For More Articles!
  • Disclaimer
  • Author Terms
  • Rating: 4 stars4 stars4 stars4 stars4 stars / 40
    2005-06-08

    Table of Contents:
  • Wireless Sensor Networks pt 1: Introduction
  • Sensor Node Features
  • Sensor Research Challenges

  • Rate this Article: Poor Best 
      ADD THIS ARTICLE TO:
      Del.ici.ous Digg
      Blink Simpy
      Google Spurl
      Y! MyWeb Furl
    Email Me Similar Content When Posted
    Add Developer Shed Article Feed To Your Site
    Email Article To Friend
    Print Version Of Article
    PDF Version Of Article
     
     

    SEARCH WEB HOSTERS

    TOOLS YOU CAN USE

    advertisement

    Wireless Sensor Networks pt 1: Introduction - Sensor Node Features


    (Page 2 of 3 )

    Comparing Sensor Nodes to Ad-hoc Wireless Networks

    Wireless sensor networks share similarities (and differences) with ad-hoc wireless networks. The main similarity is the multi-hop communication method. The differences among the two types of networks are listed below:

    • More nodes are deployed in a sensor network, up to hundred or thousand nodes, than in an ad-hoc network that usually involves far fewer nodes.
    • Sensor nodes are more constrained in computational, energy and storage resources than ad-hoc.
    • Sensor nodes can be deployed in environments without the need of human intervention and can remain unattended for a long time after deployment.
    • Neighboring sensor nodes often sense the same events from their environment thus forwarding the same data to the base station resulting in redundant information.
    • Aggregation and in-network processing often requires trust relationships between sensor nodes that are not typically assumed in ad-hoc networks.

    Sensor Node Hardware Architecture

    Sensor nodes are minute. The following figure presents the Mica2 sensor node, which is the most popular research platform at the moment.

    As you can see, the main components of a typical sensor node include an antenna and a radio frequency (RF) transceiver to allow communication with other nodes, a memory unit, a CPU, the sensor unit (i.e. thermostat) and the power source which is usually provided by batteries. The operating system running on sensor nodes is called TinyOS and was initially developed at theUniversityofCalifornia,Berkeley. TinyOS is designed to run on platforms with limited computational power and memory space.The programming language of TinyOS is stylized C and uses a custom compiler called NesC. Though it may work on other platforms, the supported platforms are Linux RedHat 9.0, Windows 2000, and Windows XP. Further information you may obtain from the official TinyOS website http://webs.cs.berkeley.edu/tos/.

    The following table lists some of the capabilities of the current sensor network platforms organized by device class as presented in the paper, “The platforms enabling wireless sensor networks” written by Jason Hill, Mike Horton, Ralph Kling and Lakshman Krishnamurthy, and is published by the ACM.

    More Web Hosting Articles Articles
    More By Eliana Stavrou

    WEB HOSTING ARTICLES ARTICLES

    - Top Wordpress Plugins for SEO
    - Top Drupal Evaluation and Rating Modules
    - Free Network Monitoring Programs for Max Per...
    - E-store Hosting: Free Options for Beginners
    - Dropbox: The Ultimate File-Sharing and Synci...
    - Reviewing the Best Free Web Hosting Sites
    - Businesses Turn to Reseller Web Hosting for ...
    - Multiple Data Center Hosting
    - Web Hosting Goes Green
    - Web Hosting Technology Overview
    - Collaborate: An Examination of Tools for Gro...
    - Social Networking Security
    - Domain Names 101
    - Top Software to Help Manage Your Websites
    - The Evolution of Phishing

    Developer Shed Affiliates

     




    © 2003-2017 by Developer Shed. All rights reserved. DS Cluster - Follow our Sitemap