A large number of ractical sensing and actuating applications require immediate notification of rare but urgent events and also fast delivery of time sensitive actuation commands. In this a er,we consider the design o...
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ISBN:
(纸本)9781595933683
A large number of ractical sensing and actuating applications require immediate notification of rare but urgent events and also fast delivery of time sensitive actuation commands. In this a er,we consider the design of efficient wakeup scheduling schemes for energy constrained sensor nodes that adhere to the bidirectional end-to-end delay constraints posed by such applications. We evaluate several existing scheduling schemes and propose novel scheduling methods that outperform existing *** also resent a new family of wakeu methods,called multi-parent schemes, which take a cross-layer a roach where multiple routes for transfer of messages and wakeup schedules for various nodes are crafted in synergy to increase longevity while reducing message delivery latencies. We analyze the power-delay and lifetime-latency tradeoffs for several wakeup methods and show that our proposed techniques significantly improve the performance and allow for much longer network lifetime while satisfying the latency constraints.
One of the most critical issues in the wireless sensor networks is the network’s nodes limited availability of energy. The network lifetime strictly depends on its energy efficiency. Clustering is a method to make th...
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One of the most critical issues in the wireless sensor networks is the network’s nodes limited availability of energy. The network lifetime strictly depends on its energy efficiency. Clustering is a method to make the consumed energyefficient. LEACH is one of the fundamental clustering algorithms. In this paper we have proposed an algorithm which extends LEACH by considering number of neighbors and remaining of the energy of each node to be a cluster head. We have also proposed to use gateway nodes in each cluster to enable the cluster head to reduce its transmission radius within the cluster to achieve better power saving. We analyze and compared the proposed algorithm along with the LEACH, LEACH-c and MIMO the most recent extend over the LEACH and show that the proposed algorithm can prolong the lifetime of the network.
There is a wide range of application in wireless ad-hoc networks which are related to crucial operations of the government and security,private sectors,health services as well as environmental *** on the importance of...
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ISBN:
(纸本)9781138028210
There is a wide range of application in wireless ad-hoc networks which are related to crucial operations of the government and security,private sectors,health services as well as environmental *** on the importance of these networks,the coverage area problem has remained an area of focus among researchers and is implemented as one of the most important design criteria of mobile *** consumption of energy is one of the key areas of wireless ad-hoc networks due to the limitation of ***,the protocol that uses low energy consumption is an important factor in these networks due to their impact on the network's *** this study,the main objective is to determine the energy-efficient algorithms for coverage problems from the *** has been determined that to accommodate a large wireless ad-hoc network,distributed algorithms can be used to obtain a higher energy efficiency through coverage regulating algorithms.
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