Cart (Loading....) | Create Account
Close category search window
 

Effects of Push-to-Talk (PTT) Delays on Throughput Performance of CSMA/CA Based Distributed Digital Radios (DDR) for Land Mobile Radio (LMR) Networks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Navalekar, A.C. ; Dept. of Electr. & Comput. Eng., Worcester Polytech. Inst. (WPI), Worcester, MA ; Kolanjery, J.S. ; Michalson, W.R. ; Matthews, J.

This paper investigates the throughput performance of a CSMA/CA based network of land mobile radios (LMR) over a Rayleigh fading FM channel. The throughput calculations are based on the medium access (MAC)/physical (PHY) cross-layer characteristics for the distributed digital radios (DDR). From PHY-layer perspective, the effects of additive white Gaussian noise (AWGN), Rayleigh fading and push-to-talk (PTT) delays are considered while the MAC-layer perspective includes the performance of carrier sense multiple access with collision avoidance (CSMA/CA) for a half duplex narrowband FM (NBFM) channel. The throughput performance was simulated for channel data rates of 12000 bps in presence of additive white Gaussian noise (AWGN) and Rayleigh fading. Typical values for PTT delays for two of the most commonly used LMR terminals were calculated experimentally. The results show that in addition to fading and number of DDR nodes in a network, the push-to-talk (PTT) delays associated with LMR radios significantly influence the achievable throughput of the system.

Published in:

Parallel Processing - Workshops, 2008. ICPP-W '08. International Conference on

Date of Conference:

8-12 Sept. 2008

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.