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Data center energy consumption has become one of the top concerns in designing and operating large-scale data centers as cloud service providers such as Amazon, Google, IBM and Microsoft have begun to establish more data centers in response to growing requests in clouds. In recent years, extensive efforts have been put into the research of reducing the energy consumption of servers. With the improvement...
The main source of power supply for Wireless Sensor Networks are batteries, which are limited in life-cycle, thus limiting the sensors lifetime. Due this fact, the energy efficiency network is becoming the main concern to be addressed by researchers. This work aims to implement two theoretical energy-saving algorithms for WSN, DTNBOR and DTRNG. These algorithms choose their transmissions powers dynamically...
This paper investigates dynamic topology management functionalities in the flexible deployment of a hybrid aerial-terrestrial cognitive cellular network for public safety in unexpected or temporary events. An evolutionary roll out and roll back of the network architecture in the disaster relief scenario is proposed under the assistant of topology management algorithm, in order to manage the number,...
In this paper, we propose an algorithm which computes the energy-efficient P2MP-path for MiDORi network rapidly. By computer simulation, proposed algorithm can calculate within 3 seconds and reduce 30kW in large scale network.
Energy efficiency is an important consideration in a battery powered wireless sensor network (WSN). We propose an energy efficient Distributed Power Management algorithm with Directional Antenna (DDISPOW) that adaptively manages nodes' power in a dynamic wireless network to preserve network connectivity and reduce interference cooperatively. DDISPOW, with adequate transmit power, is capable of providing...
In this paper, we propose a new dynamic energy efficient routing scheme for wireless sensor networks. Based on the dynamic reconfiguration approach, the proposed scheme can provide network adaptability while enhancing the network efficiency. In addition, our distributed control paradigm has low complexity, making it practical for real sensor network management. Simulation results indicate the superior...
In autonomous ad hoc networks, nodes may act in their self-interest to improve their performance, perhaps at the expense of other nodes', or even the overall network's, performance. Besides, nodes are often mobile and must contend with limited and obsolete information about the operating state of network during their decision-making. We examine topology control of ad hoc networks and analyze the impact...
Dynamic spectrum management (DSM) is a key feature for enhancing cooperation in wireless video sensor network (WVSN) towards supporting communication of high data-rate video information. Unlike traditional spectrum allocation, DSM in WVSN should have topology control and distributed control center. In this paper, we propose an ILST algorithm for constructing distributed DSM topology control with the...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
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