Results 41 to 50 of about 1,774 (191)
Topology Control for Maintaining Network Connectivity and Maximizing Network Capacity Under the Physical Model [PDF]
, 2007 In this paper we study the issue of topology control under the physical Signal-to-Interference-Noise-Ratio (SINR) model, with the objective of maximizing network capacity.
Gao, Yan +2 more
core
A survey on future railway radio communications services: challenges and opportunities [PDF]
, 2015 Radio communications is one of the most disruptive technologies in railways, enabling a huge set of value-added services that greatly improve many aspects of railways, making them more efficient, safer, and profitable.
Haro Ariet, Leandro De +3 more
core +2 more sources
Dianxin kexue, 2017 Communication based train control system (CBTC) is assigned in 2.4 GHz unlicensed band,and is easily interfered by Wi-Fi,which caused several emergency brake accidents in Shenzhen and Beijing.Under identical and adjacent interferences from existing ...
Ruichen XU +4 more
doaj +2 more sources
Formalising the Continuous/Discrete Modeling Step
, 2011 Formally capturing the transition from a continuous model to a discrete model is investigated using model based refinement techniques. A very simple model for stopping (eg. of a train) is developed in both the continuous and discrete domains.
A. Slissenko +46 more
core +3 more sources
IET Intelligent Transport Systems, Volume 19, Issue 1, January/December 2025.This paper presents a safety refinement pattern for complex computer‐based systems (CBSs) using a layered architecture, integrating STAMP models with Event‐B to derive and verify safety requirements (SRs) and system‐level safety constraints (SLSCs).
Meng Mei +7 more
wiley +1 more source
Propagation Mechanism Analysis Before the Break Point Inside Tunnels [PDF]
, 2011 There is no unanimous consensus yet on the propagation mechanism before the break point inside tunnels. Some deem that the propagation mechanism follows the free space model, others argue that it should be described by the multimode waveguide model ...
Bo, Ai +3 more
core +1 more source
Capacity Simulation Analysis of CTCS‐3 Combined With Moving Block
Journal of Advanced Transportation, Volume 2025, Issue 1, 2025.With the continuous growth of high‐speed railway passenger transportation demand, how to improve the capacity has become an urgent problem to be solved. The signal system based on moving block can effectively improve the utilization of line capacity. From the perspective of signal system, this paper studies the line capacity benefits brought by CTCS‐3 ...
Lei Yuan +4 more
wiley +1 more source
Design of CBTC and ATP/TD Integrated On-board System
Chengshi guidao jiaotong yanjiuObjective In response to the continuously increasing passenger demands, Chongqing Rail Transit Line 2 requires signaling system upgrading and renovation for the previously launched Jiaochangkou-Xinshancun Interval.
XU Dan +3 more
doaj +1 more source
Research on the Design of Local Workstation Integration for CBTC System
Kongzhi Yu Xinxi Jishu, 2021 In the communication based train control system (CBTC) signaling system architecture, CI operation control and automatic train supervision(ATS) local workstation are two independent operating terminals playing different roles.
WANG Min, CHENG Huanqing, ZHANG Yanqiu
doaj
Topology Control in Heterogeneous Wireless Networks: Problems and Solutions [PDF]
, 2004 Previous work on topology control usually assumes homogeneous wireless nodes with uniform transmission ranges. In this paper, we propose two localized topology control algorithms for heterogeneous wireless multi-hop networks with nonuniform transmission ...
Hou, Jennifer C., Li, Ning
core +1 more source