NDLI: Overlapped Schedules with Centralized Clustering for Wireless Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Ammar, I. Miskeen, G. Awan, I.
Copyright Year	2013
Description	Author affiliation: Sch. of Comput., Univ. of Bradford, Bradford, UK (Ammar, I.; Miskeen, G.; Awan, I.)
Abstract	The main attributes that have been used to conserve the energy in wireless sensor networks (WSNs) are clustering, synchronization and low-duty-cycle operation. Clustering is an energy efficient mechanism that divides sensor nodes into many clusters. Clustering is a standard approach for achieving energy efficient and hence extending the network lifetime. Synchronize the schedules of these clusters is one of the primary challenges in WSNs. Several factors cause the synchronization errors. Among them, clock drift that is accommodated at each hop over the time. Synchronization by means of scheduling allows the nodes to cooperate and transmit data in a scheduled manner under the duty cycle mechanism. Duty cycle is the approach to efficiently utilize the limited energy supplies for the sensors. This concept is used to reduce idle listening. Duty cycle, nodes clustering and schedules synchronization are the main attributes we have considered for designing a new medium access control (MAC) protocol. The proposed OLS-MAC protocol designed with the target of making the schedules of the clusters to be overlapped with introducing a small shift time between the adjacent clusters schedules to compensate the clock drift. The OLS-MAC algorithm is simulated in NS-2 and compared to some S-MAC derived protocols. We verified that our proposed algorithm outperform these protocols in number of performance matrix.
Sponsorship	IEEE Comput. Soc.
Starting Page	33
Ending Page	40
File Size	688586
Page Count	8
File Format	PDF
ISBN	9781467355506
ISSN	1550445X
e-ISBN	9780769549538
DOI	10.1109/AINA.2013.130
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-03-25
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Schedules Synchronization Peer-to-peer computing Clustering algorithms Wireless sensor networks Media Access Protocol duty cycle overlapping Clustering synchronization clock drift
Content Type	Text
Resource Type	Article

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