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  1. 2941

    Energy-saving clustering routing algorithm based on semi-fixed cluster for wireless sensor networks by ZHANG Zhaohui, ZHOU Jiaqi

    Published 2024-04-01
    “…In data transmission phase, the optimization model of relay nodes was constructed according to the residual energy of nodes, the distances between nodes and the base station, and the distances between nodes. …”
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  2. 2942
  3. 2943

    WSN clustering routing algorithm based on Cuckoo Search algorithm optimized K-means by Kailei ZHU, Aijing SUN

    Published 2022-03-01
    “…In order to extend the lifetime of wireless sensor network (WSN), a clustering routing algorithm for WSN based on Cuckoo Search (CS) algorithm optimized K-means was presented.In the clustering stage, the initial cluster centers were selected by CS algorithm, which make the clustering results of the K-means algorithm more uniform to balance node energy consumption.The remaining energy of the node, the distance from the center of the cluster were comprehensively considered in the cluster election, and the weight according to the remaining energy of the node was dynamically adjusted.In the data communication stage, in order to further balance the load of the cluster head, the remaining energy of the relay node and its load, and the cluster head routing energy consumption were comprehensively considered, CS algorithm was combined to plan routing for the cluster head.The simulation results show that the proposed algorithm is better than LEACH-K, LEACH-improve and DTK-means in terms of energy consumption balance.With the death of the first node as the life cycle of the network, the network lifespan was increased by 173%, 21%, and 6% respectively.The proposed algorithm effectively extending the network life cycle.…”
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    Metafory wizji by Stan Brakhage

    Published 2010-06-01
    “…Ustanawia i stara się opisać swoistą relację między okiem kamery a okiem twórcy, filmowca. …”
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  7. 2947

    Cross-Layer Optimization Scheme Using Cooperative Diversity for Reliable Data Transfer in Wireless Sensor Networks by Yongrui Chen, Fei Qin, Yulong Xing, Dujdow Buranapanichkit

    Published 2014-03-01
    “…By utilizing a cross-layer optimization scheme, distributive algorithms which jointly consider routing, relay selection, and power allocation strategies are proposed for the reliability constraint wireless sensor networks. …”
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  8. 2948
  9. 2949

    Efficient Data Transmission for Community Detection Algorithm Based on Node Similarity in Opportunistic Social Networks by Aizimaiti Xiaokaiti, Yurong Qian, Jia Wu

    Published 2021-01-01
    “…When forwarding the message, we select optimal relay node as transmission according to the coefficients of channels. …”
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  10. 2950
  11. 2951

    Cooperative MAC protocol based on network coding and space-time coding by Qian-bin CHEN, Jian LIU, Yong FENG, Lun TANG

    Published 2013-09-01
    “…Aiming at the problems in wireless ad hoc networks,such as relays’ low efficiency caused by cooperation and difficult to meet the different QoS requirements,a co e MAC protocol was proposed based on the combination of network coding and space-time coding(NSTCMAC).Based on NSTCMAC protocol with the combination of Network coding and space-time coding techniques,a kind of cooperative MAC transmission mechanism that could distinguish the type of DATA packet was designed in order to meet the QoS requirements of different types of transm Further more,cooperative transmission mechanism and its performance were analyzed through Markov chain model.When transmitting the non-real-time(NR) packets,network coding was adopted to improve the efficiency of relay nodes; when transmitting the real-time(R) packets,randomized distributed space-time coding(R-DSTC)was used to enhance the reliability of transmission.Simulation results show that NSTCMAC protocol can meet different QoS requirements better,and solve the problem of relays’ low efficiency more effectively,when compared with legacy DCF、COOPMAC and CD-MAC protocol.…”
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    Magnetic and Thermal Characterization of Fe2.9wt.%Si for Magnetic Shielding Applications by Michele Quercio, Luca Santoro, Emir Poskovic, Raffaella Sesana, Aldo Canova

    Published 2025-01-01
    “…The study compares these materials’ performance with conventional counterparts, particularly in the context of their application in magnetic shielding of a relay switch. The research integrates experimental findings from thermal imaging techniques to evaluate the efficiency of these materials under operational conditions, offering valuable insights into the future of additive manufacturing in high-performance magnetic shielding.…”
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  15. 2955
  16. 2956

    Downlink and Uplink Cooperative Transmission for Primary Secrecy Based Cognitive Radio Sensor Networks by Dawei Wang, Pinyi Ren, Qinghe Du, Li Sun, Yichen Wang

    Published 2015-10-01
    “…Aiming at allocating more licensed spectrum to wireless sensor nodes (SNs) under the constraint of the information security requirement of the primary system, in this paper, we propose a cooperative relaying and jamming secure transmission (CRJS) scheme in which SNs will relay primary message and jam primary eavesdrop concurrently with SN's downlink and uplink information transmission in cognitive radio sensor networks (CRSNs). …”
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