A Dynamical Slot Assignment Method for Wireless Sensor Networks Based on Hopfield Network
Author(s) -
Qi Yang,
Xiao Lin,
Yuxiang Zhuang,
Xuemin Hong
Publication year - 2014
Publication title -
international journal of distributed sensor networks
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.324
H-Index - 53
eISSN - 1550-1477
pISSN - 1550-1329
DOI - 10.1155/2014/805142
Subject(s) - computer science , convergence (economics) , wireless sensor network , key (lock) , wireless , computer network , wireless network , scheme (mathematics) , artificial neural network , mathematical optimization , algorithm , telecommunications , artificial intelligence , mathematics , mathematical analysis , computer security , economics , economic growth
This paper proposes an improved Hopfield neural network (I-HNN) algorithm to optimize the slot assignment scheme in wireless sensor networks. The key advantage of the proposed algorithm is to increase the convergence probability under different traffic loads. To achieve this, nodes can adjust their slot demands according to the traffic load, slots number, and demand history. Various aspects of the network performances with the proposed I-HNN algorithm are evaluated via simulation. The results indicate that I-HNN is suitable for wireless sensor networks with dynamically varying traffic. In particular, it can increase the convergence probability and slot utilization under the heavy traffic load.
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