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Added a new section describing some of the shortcomings of LEACH |
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'''Low-energy adaptive clustering hierarchy ("LEACH")'''<ref>[[Wendi Rabiner Heinzelman|Heinzelman, W.]], Chandrakasan, A., and Balakrishnan, H., "Energy-Efficient Communication Protocols for Wireless Microsensor Networks", Proceedings of the 33rd Hawaaian International Conference on Systems Science (HICSS), January 2000. [http://pdos.csail.mit.edu/decouto/papers/heinzelman00.pdf Paper]</ref> is a [[Time division multiple access|TDMA]]-based [[Media access control|MAC]] protocol which is integrated with clustering and a simple routing protocol in [[wireless sensor network]]s (WSNs). The goal of LEACH is to lower the energy consumption required to create and maintain clusters in order to improve the life time of a wireless sensor network.
==Protocol ==
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*Threshold value
▲== Shortcomings of LEACH<ref>{{Cite journal|last=Varshney|first=Shweta|last2=Kuma|first2=Rakesh|date=2018|title=Variants of LEACH Routing Protocol in WSN: A Comparative Analysis|url=https://ieeexplore.ieee.org/document/8442643/|journal=2018 8th International Conference on Cloud Computing, Data Science & Engineering (Confluence)|language=en-US|publisher=IEEE|volume=|pages=|doi=10.1109/confluence.2018.8442643|isbn=9781538617199|via=}}</ref> ==
▲Shortcomings of LEACH include:
* Remaining energy among the nodes isn't considered when selecting Cluster Heads
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* Random and uneven distribution of cluster heads
* Single hop communication in situations where energy use is less efficient from cluster head to base station
* Multi-clustering might not be required at some point and, at some point, number of optimum clusters could be as high as N (number of live nodes in the network)<ref>{{Cite journal |last1=Roy |first1=Nihar Ranjan |last2=Chandra |first2=Pravin |date=2018 |title=A Note on Optimum Cluster Estimation in LEACH Protocol |journal=IEEE Access |volume=6 |pages=65690–65696 |doi=10.1109/ACCESS.2018.2877704 |s2cid=53779139 |issn=2169-3536|doi-access=free |bibcode=2018IEEEA...665690R }}</ref>
== References ==
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