By Topic

Structuring contention-based channel access in wireless sensor 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

2 Author(s)
Eisenman, S.B. ; Dept. of Electr. Eng., Columbia Univ., New York, NY ; Campbell, A.T.

In a wireless network using CSMA for MAC, packet collisions can result either because of the vulnerability stemming from the idle channel detection delay of the radio device or because of the hidden terminal problem. Both of these collision scenarios can be addressed by applying some additional structure to carrier sense-based channel access, sacrificing throughput to improve collision protection. Specifically, we assign a unique time slice to each contending transmitter that is designed to allow collision-free access to each data slot while still using carrier sense as the mechanism to determine channel state. The width of each time slice is equal to the idle channel detection delay of the radio. We prepend a fixed-length time interval to each transmitted packet whose length is proportional to the idle channel detection delay of the radio device and the node density. We discuss this method of channel access including tradeoffs and requirements, and analyze the performance in comparison with existing MAC strategies

Published in:

Information Processing in Sensor Networks, 2006. IPSN 2006. The Fifth International Conference on

Date of Conference:

0-0 0