Results 41 to 50 of about 12,669 (262)

Multi-Users Dynamic Bandwidth Allocation Technology of SDTN

open access: yes天地一体化信息网络, 2022
The TT&C and data transmission of spacecraft are divided into two methods: space-based and ground-based.Among them, space-based method has the advantages of global coverage, access at any time, and real-time information return, and have a wide range ...
Jianxiang CHU   +3 more
doaj   +2 more sources

Investigation and System Implementation of Flexible Bandwidth Switching for a Software-Defined Space Information Network

open access: yesIEEE Photonics Journal, 2017
This paper proposes and experimentally demonstrates a hybrid switching system that provides flexible bandwidth allocation for future laser and microwave space information networks.
Bin Wu   +4 more
doaj   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

open access: yesAdvanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang   +9 more
wiley   +1 more source

Fundamental Challenges, Physical Implementations, and Integration Strategies for Ising Machines in Large‐Scale Optimization Tasks

open access: yesAdvanced Electronic Materials, EarlyView.
Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley   +1 more source

Bandwidth Allocation Method in Satellite Network Based on Dynamic Token Bucket [PDF]

open access: yesJisuanji gongcheng, 2016
In order to allocate the bandwidth equitably,reduce resource waste and satisfy the bandwidth requirement of different priority traffic in a satellite communication network,an improved bandwidth allocation method based on dynamic token bucket is proposed ...
LIU Zhiguo,SHI Erxin,MA Yue
doaj   +1 more source

Recent Advances in Programmable Metasurfaces and Meta‐Devices

open access: yesAdvanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao   +4 more
wiley   +1 more source

Research on Real-time Performance of Aperiodic Message and OptimizedDesign of Bandwidth Allocation in Multifunction Vehicle Bus

open access: yes机车电传动, 2014
By analyzing the characteristics of every type of messages, two bandwidth allocation strategies of MVB aperiodic communicationwere proposed , and relevant formula was derived.
ZHU Jun, LI Fang, WANG Li-fang
doaj  

Cooperative game based bandwidth allocation mechanism live migration of multiple virtual machines

open access: yesTongxin xuebao, 2016
In IaaS cloud computing platform, live migration of virtual machines plays a significant role in resource dy-namic dispatching and management. Under many scenarios, multiple virtual machines in the same server need to be moved online concurrently.Since ...
Yong CUI   +3 more
doaj   +2 more sources

Crop Insurance Design and On‐Farm Risk Adaptation

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The United States spends billions annually on crop insurance premium subsidies, yet the prevailing distance‐based guarantee design unintentionally rewards risk‐taking by linking subsidies to yield variability. We consider a simple redesign: define guarantees in terms of probability so that coverage reflects a consistent likelihood of indemnity.
Gerald Van Tassell, Alan P. Ker
wiley   +1 more source

Utility-Optimized Flow-Level Bandwidth Allocation in Hybrid SDNs

open access: yesIEEE Access, 2018
The software-defined network (SDN) is a new networking paradigm to improve network performance via logically centralized control and open standardized interfaces.
Xiaohong Huang, Tingting Yuan, Maode Ma
doaj   +1 more source

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