You are here:
Home › All Blogs ›
UCD OPNET research group

UCD OPNET research group

Submitted by Xiaoyun Li on Mon, 2009-10-19 12:25.

 

 
OPNET Technologies
7255 Woodmont Avenue
Bethesda, MD 20814
Tel: 240-497-3000
Fax: 240-497-3001
E-mail: university@opnet.com
Web: www.opnet.com

© 2008 OPNET Technologies, Inc.
OPNET and OPNET Technologies Inc.
are registered trademarks of OPNET.
All trademarks are the property of their
respective owners and are used herein
for identification purposes only.

 

 

 

 

 

 

 

 

 
 

 

 

 

 

 

 
 

 

 University: University College Dublin
Sponsoring Professor: Chris Bleakley
Department: UCD School of Computer Science and Informatics 

 

Research Project: Bluedot+

The main purpose of this project is to design and analyze networking performance of MAC protocols such as IEEE 802.15.4 for wireless ad hoc networks and sensor networks, in order to find out new solution or protocols for better power saving, less transmission end to end delay and less data loss etc. The research will also consider different kinds of scenarios such as node density, mobility and failure models. The output of the research can be potentially applied on commercial wireless motes/products based on IEEE 802.15.4 / Zigbee standards.



Publication
Title: Enhanced Beacon Enabled Mode For Improved IEEE 802.15.4 Low Data Rate Performance

This paper proposes enhancements to IEEE 802.15.4 Beacon-Enabled Mode that provide improved network performance and lower power consumption for low data rate applications. The proposed mode allows nodes to sleep for multiple Beacon Intervals and subsequently recover Beacon synchronization in a power efficient manner. The proposed mode also allows nodes to transmit at scheduled times during the inactive period. The proposed Enhanced Mode is backward compatible and inter-operable with the original standard. Simulation using OPNET shows that the proposed Enhanced Mode reduces the power consumption overhead of synchronization by more than 50% for applications with low data rates compared with standard Beacon-Enabled mode. End-to-end delay and data loss rate are reduced by more than 90% compared with standard Beacon-Enabled mode. Duty cycle is reduced by 20% ~ 80% compared with standard Beacon-Enabled mode and by more than 90% compared with non-Beacon-Enabled mode in low and moderate traffic conditions

OPNET Technologies, Inc. is a leading provider of solutions for managing networks and applications. OPNET's best-in-class solutions address application troubleshooting, application monitoring, network monitoring, network configuration management, capacity management, and network simulation. OPNET’s solutions have been operationally proven in thousands of customer environments worldwide, including corporate and government enterprises, government and defense agencies, network service providers, and network equipment manufacturers. For more information about OPNET and its products, visit www.opnet.com.