Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/7645
Title: The Impact of Link Unidirectionality and Reverse Path Length on Wireless Sensor Network Lifetime
Authors: Batmaz, Anıl Ufuk
Tavlı, Bülent
İncebacak, Davut
Bıçakcı, Kemal
Keywords: wireless sensor networks
unidirectional links
mixed integer programming
energy efficiency
Issue Date: 2013
Publisher: IEEE
Source: IEEE International Conference on Communications (ICC) -- JUN 09-13, 2013 -- Budapest, HUNGARY
Series/Report no.: IEEE International Conference on Communications
Abstract: The occurrence of unidirectional links in wireless sensor networks (WSNs) is an inherent feature of wireless communication. Transceiver characteristics, asymmetric interference, and many other properties of the electromagnetic propagation environment result in link unidirectionality, however, transmission power heterogeneity is the dominant factor that creates unidirectional links. Most of the data transfer mechanisms designed for wireless networks work only on bidirectional links, yet, there are some mechanisms capable of utilizing unidirectional links. Employment of a multi-hop reverse path for acknowledgement delivery is the key concept and hop length of the reverse path is an important design criterion in such mechanisms. If the maximum reverse path length is allowed to take large values then the number of usable unidirectional links increases. Increasing the number of available links leads to better energy balancing and longer network lifetime. But is it necessary to keep the reverse path length large to achieve the maximum network lifetime possible? In this study, we investigate the effects of reverse path length in WSNs with unidirectional links induced by transmission power heterogeneity on network lifetime through a novel mixed integer programming framework. Our results show that reverse path length has significant impact on WSN lifetime.
URI: https://hdl.handle.net/20.500.11851/7645
ISBN: 978-1-4673-3122-7
ISSN: 1550-3607
Appears in Collections:Bilgisayar Mühendisliği Bölümü / Department of Computer Engineering
Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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