NDLI: An Energy-Efficient MAC-Layer Transmission Algorithm Considering Fading Channels for Cluster-Based Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Xiaobo Zhang Heping Wang Khokhar, A.
Copyright Year	2008
Description	Author affiliation: ECE Dept, Univ. of Illinois at Chicago, Chicago, IL (Xiaobo Zhang; Heping Wang; Khokhar, A.)
Abstract	Most of the existing MAC-layer protocols for sensor networks consider the status of wireless channel as time invariant. This assumption leads to reduced energy efficiency due to repeated transmissions particularly in nodes that experience deep channel fading. Multiple factors can be responsible for fading channels including other wireless activity in the surroundings, mobility, and geographic landscape. In this paper, we study the effect of fading channel for intra-cluster data transmission in cluster-based sensor networks that employ TDMA based channel access protocols. We propose an efficient MAC layer algorithm where the cluster head broadcasts a short message at the beginning of each frame. Each node within the cluster will transmit data in its assigned data slot when the detected received power of this broadcast message is above a certain threshold. By restraining a node from transmitting data in its assigned slot when its channel is in deep fading, the packet error rate is reduced and energy efficiency is greatly improved. By choosing the optimal threshold to maximize energy efficiency, our simulation results show that energy efficiency can be improved up to 400% considering the fading status of channel in different test scenarios. The proposed algorithm can be easily extended to contention based MAC protocols.
Starting Page	1
Ending Page	5
File Size	159675
Page Count	5
File Format	PDF
ISBN	9781424423248
ISSN	1930529X
DOI	10.1109/GLOCOM.2008.ECP.80
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Energy efficiency Clustering algorithms Fading Wireless sensor networks Broadcasting Wireless application protocol Data communication Time division multiple access Access protocols Error analysis
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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