Showing 1,021 - 1,040 results of 3,139 for search '"wireless"', query time: 0.09s Refine Results
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    Altruistic Backoff: Collision Avoidance for Receiver-Initiated MAC Protocols for Wireless Sensor Networks by Xenofon Fafoutis, Charalampos Orfanidis, Nicola Dragoni

    Published 2014-05-01
    “…In receiver-initiated medium access control (MAC) protocols for wireless sensor networks, communication is initiated by the receiver node which transmits beacons indicating its availability to receive data. …”
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    A Mutual Broadcast Authentication Protocol for Wireless Sensor Networks Based on Fourier Series by Xiaogang Wang, Weiren Shi

    Published 2015-12-01
    “…This thesis presents a mural broadcast authentication protocol (MBAP) for wireless sensor networks based on Fourier series according to the issues of the main broadcast authentication protocol µ TESLA being limited in authentication delay, more initial parameters, limited time, large key chain, and network congestion. …”
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    Wireless sensor network nodes localization method based on cellular automata bat algorithm by Kailu MENG, Keqiang YUE, Junna SHANG

    Published 2017-11-01
    “…To further enhance the location precision of unknown nodes and solve the node location error in wireless sensor network,a location method based on cellular automata bat algorithm was presented.Mixed the idea of cellular automata and the bat algorithm and drawed into the cellular RCS niche technique and disaster mechanism,the algorithm could jump out of local optimum and increase the convergence speed.In order to verify the feasibility and efficiency,the proposed algorithm was verified through simulation of several benchmark functions.Then the algorithm implemented the CA-BA to node location prediction to increase the precision of the unknown node location.In the measured experiment,the results show that the proposed algorithm has higher accuracy compared to the improved PSO algorithm,which average localization error is less than 0.5m.…”
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    Improved TCP based on adaptive loss differentiation algorithm over wired-wireless networks by YE Jin1, WANG Jian-xin1, GONG Hao1

    Published 2007-01-01
    “…BQM discriminator can not be fit to different network states was pointed and an adaptive BQM,whose key idea is adjusting the important parameters for pattern matching according to network states so that the scheme can keep validity while congestion loss and/or channel error increasing was proposed.The experiment results show that the accuracy of A<sub>B</sub>QM discriminator is higher than BQM in different network states and A<sub>B</sub>QM can adjust itself adaptively according to network states.A<sub>B</sub>QM gets better performance than BQM in some metrics,such as network throughput,fairness,delay jitter,and can be implemented and used easily in wired-cum-wireless networks.…”
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    An Interference Avoidance Method of Wireless Body Area Network Based on Chinese Medical Band by Weixia Zou, Chao Guo, Fengyuan Kang, Chunqing Zhang

    Published 2015-10-01
    “…An interference avoidance mechanism for Chinese Wireless Body Area Network (WBAN) is proposed in this paper. …”
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    Indoor Positioning in Wireless Local Area Networks with Online Path-Loss Parameter Estimation by Luigi Bruno, Paolo Addesso, Rocco Restaino

    Published 2014-01-01
    “…A much addressed solution for estimating the user position exploits the received signal strengths (RSS) in wireless local area networks (WLANs), which are very common nowadays. …”
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    Service function chain embedding algorithm with wireless multicast in mobile edge computing network by Kan WANG, Nan ZHAO, Junhuai LI, Huaijun WANG

    Published 2020-10-01
    “…To resolve the excessive system overhead and serious traffic congestion in user-oriented service function chain (SFC) embedding in mobile edge computing (MEC) networks,a content-oriented joint wireless multicast and SFC embedding algorithm was proposed for the multi-base station and multi-user edge networks with MEC servers.By involving four kinds of system overhead,including service flow,server function sustaining power,server function service power and wireless transmission power,an optimization model was proposed to jointly design SFC embedding with multicast beamforming.Firstly,with Lagrangian dual decomposition,the problem was decoupled into two independent subproblems,namely,SFC embedding and multicast beamforming.Secondly,with the L&lt;sub&gt;p&lt;/sub&gt; norm penalty term-based successive convex approximation algorithm,the integer programming-based SFC embedding problem was relaxed to an equivalent linear programming one.Finally,the non-convex beamforming optimization problem was transformed into a series of convex ones via the path following technique.Simulation results revealed that the proposed algorithm has good convergence,and is superior to both the optimal SFC embedding with unicasting and random SFC embedding with multicasting in terms of system overhead.…”
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    OPTIMIZATION FOR THE COVERAGE PROBLEM OF WIRELESS SENSOR NETWORK WITH VORONOI ALGORITHM IN 3D ENVIRONMENTS by Đặng Thanh Hải, Lê Trọng Vĩnh

    Published 2016-06-01
    “…In recent years, wireless sensor networks (WSN) has appeared interesting to many authors. …”
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    Data Aggregation in Heterogeneous Wireless Sensor Networks by Using Local Tree Reconstruction Algorithm by Zhaohui Zhang, Jing Li, Xiaoli Yang

    Published 2020-01-01
    “…Aiming at the transmission of heterogeneous data in heterogeneous networks, a topology optimization algorithm of heterogeneous wireless sensor networks based on local tree reconstruction is proposed, which can achieve better data transmission in the heterogeneous networks. …”
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