scispace - formally typeset
Search or ask a question
Institution

Beijing University of Posts and Telecommunications

EducationBeijing, Beijing, China
About: Beijing University of Posts and Telecommunications is a education organization based out in Beijing, Beijing, China. It is known for research contribution in the topics: MIMO & Quality of service. The organization has 39576 authors who have published 41525 publications receiving 403759 citations. The organization is also known as: BUPT.


Papers
More filters
Journal ArticleDOI
TL;DR: A switch migration-based decision-making (SMDM) scheme is put forward that could be made aware of the load imbalance by a switch migration trigger metric and built to make a tradeoff between migration costs and the load balance rate.
Abstract: Elastic scaling and load balancing with efficient switch migration are critical to enable the elasticity of software-defined networking (SDN) controllers, but learning how to improve migration efficiency remains a difficult problem. To address this issue, a switch migration-based decision-making (SMDM) scheme is put forward that could be made aware of the load imbalance by a switch migration trigger metric; the migration efficiency model for this scheme is built to make a tradeoff between migration costs and the load balance rate. An efficiency-aware switch migration algorithm based on greedy method is designed to utilize the migration efficiency model and thus guide the choice of possible migration actions. We implement a proof of the scheme and present a numerical evaluation using Mininet emulator to demonstrate the effectiveness of our proposal.

112 citations

Journal ArticleDOI
TL;DR: Simulation results show that the proposed VHO method not only supports the VHO among Wireless Access in Vehicular Environments, Worldwide Interoperability for Microwave Access, and third-generation cellular but also reduces switching times and ensures the network update rate and the vehicles' service quality.
Abstract: Vehicles often communicate among different networks in Internet of Vehicles (IoVs). However, existing unstable network statuses and different user preferences result in vehicle frequent vertical handoffs (VHOs). In this paper, we propose a novel VHO method based on a self-selection decision tree for IoVs. We first establish the respective handoff probability distribution of vehicles according to network attributes and movement trend. Then, based on handoff probability distributions and defined user preferences, we propose a novel handoff method by the self-selection decision tree for IoVs. Finally, we also present a feedback decision method according to the feedback of vehicle handoff, to improve next handoff quality when vehicle movement trend and vehicle service status change. Simulation results show that the proposed method not only supports the VHO among Wireless Access in Vehicular Environments, Worldwide Interoperability for Microwave Access, and third-generation cellular but also reduces switching times and ensures the network update rate and the vehicles’ service quality.

112 citations

Journal ArticleDOI
TL;DR: In this article, a non-noble metallic plasmons and piezoelectronic effect can serve synchronously as highly active photocatalytic agents, which not only boost the solar energy conversion efficiency but also decrease the material cost.

112 citations

Journal ArticleDOI
TL;DR: In this article some cooperative distributed radio resource management algorithms for time synchronization, carrier selection, and power control are discussed for hyper-dense small cell deployment.
Abstract: The fifth generation mobile networks will be developed to improve area spectral and energy efficiency, and provide uniform user experience. Hyper-dense small cell deployment can move devices closer to the wireless network and satisfy 5G system requirements. The main challenge of this network deployment results from the random deployment, dynamic on-off, flexible connection to cellular core networks, and flat system architecture of 5G systems. Therefore, conventional network planning and radio resource management, which depend on a central control node, cannot be applied to small cell networks. In this article some cooperative distributed radio resource management algorithms for time synchronization, carrier selection, and power control are discussed for hyper-dense small cell deployment.

111 citations

Journal ArticleDOI
TL;DR: In this paper, the authors analyzed the nexus between logistics performance and environmental degradation using data obtained from 42 Asian countries between 2007 and 2016 using a system-generalized method of moment (GMM) regression model.

111 citations


Authors

Showing all 39925 results

NameH-indexPapersCitations
Jie Zhang1784857221720
Jian Li133286387131
Ming Li103166962672
Kang G. Shin9888538572
Lei Liu98204151163
Muhammad Shoaib97133347617
Stan Z. Li9753241793
Qi Tian96103041010
Xiaodong Xu94112250817
Qi-Kun Xue8458930908
Long Wang8483530926
Jing Zhou8453337101
Hao Yu8198127765
Mohsen Guizani79111031282
Muhammad Iqbal7796123821
Network Information
Related Institutions (5)
Beihang University
73.5K papers, 975.6K citations

88% related

National Chiao Tung University
52.4K papers, 956.2K citations

87% related

Harbin Institute of Technology
109.2K papers, 1.6M citations

87% related

Tsinghua University
200.5K papers, 4.5M citations

87% related

Southeast University
79.4K papers, 1.1M citations

86% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202394
2022533
20213,009
20203,720
20193,817
20183,296