scholarly journals A Clean-Slate ID/Locator Split Architecture for Future Network

2016 ◽  
Keyword(s):  
Split Architecture

scholarly journals Mobility-Aware Modeling and Analysis of Dense Cellular Networks With $C$ -Plane/ $U$ -Plane Split Architecture

2016 ◽  
Vol 64 (11) ◽  
pp. 4879-4894 ◽  
Author(s):  
Hazem Ibrahim ◽  
Hesham ElSawy ◽  
Uyen Trang Nguyen ◽  
Mohamed-Slim Alouini
Keyword(s):  
Cellular Networks ◽  
Modeling And Analysis ◽  
Split Architecture

A design approach for multi-configuration hybrid transmission mechanisms

2020 ◽  
Vol 234 (12) ◽  
pp. 2744-2758
Author(s):  
Yan-song Chen ◽  
I-Ming Chen ◽  
Tyng Liu
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Transmission Mechanism ◽  
Design Approach ◽  
Transmission Mechanisms ◽  
Power Split ◽  
Hybrid Transmission ◽  
Split Architecture ◽  
Multiple Configurations

Several hybrid architectures have been widely used in hybrid electric vehicles. For example, power-split architecture brings seamless operation, while parallel architecture makes the internal combustion engine directly drive the wheel. To combine the advantages of various architectures, this study aims to develop a design approach to create a transmission mechanism that has multiple configurations and uses these configurations to achieve several hybrid architectures. First, this study standardized hybrid transmission mechanisms using the Function Power Graph; this powerful and intuitive tool inspired several elements and an element layout for the new mechanisms. Then, several configurations with up to five elements were enumerated and organized into the databases. Next, the mechanisms with multiple configurations and a limited number of clutching units (clutches or brakes) were evaluated, 10 of which were identified as the best group that provided five parallel configurations, two 2-motor electric vehicle configurations, and a power-split configuration. At the end of this paper, a novel hybrid transmission mechanism was developed as a demonstration. It provides higher power and torque at the output but there is no need to use the larger internal combustion engine or motor-generators. This mechanism also enables the internal combustion engine to drive in overdrive parallel architectures to avoid the loss in energy conversion when the power-split architecture is not required. As a result, after a designer specifies the desired hybrid configurations, follows the procedure, and uses the configuration databases built in this study, a novel hybrid transmission mechanism will be created.

INS/GPS fusion architectures for unmanned aerial vehicles

2014 ◽  
Vol 2 (3) ◽  
pp. 154-167 ◽  
Author(s):  
Sanketh Ailneni ◽  
Sudesh K. Kashyap ◽  
N. Shantha Kumar
Keyword(s):  
Flight Test ◽  
Vital Role ◽  
Open Loop ◽  
Measurement Unit ◽  
Data Logger ◽  
Content Type ◽  
Loosely Coupled ◽  
Black Kite ◽  
Aerial Vehicle ◽  
Split Architecture

Purpose – The purpose of this paper is to present fusion of inertial navigation system (INS) and global positioning system (GPS) for estimating position, velocities, attitude and heading of an unmanned aerial vehicle (UAV). Design/methodology/approach – A 15-state extended Kalman filter (EKF) and a split architecture consisting of six-state nonlinear complementary filter (NCF) and nine-state EKF are investigated in detail. In both these fusion architectures GPS and inertial measurement unit consisting of three axis accelerometers, three axis rate gyros and three axis magnetometer have been fused in open loop fashion (loosely coupled) to estimate the navigation states. Findings – These architectures have been implemented in MATLAB/SIMULINK environment and evaluated in closed loop guidance of Black-Kite MAV with software-in-the-loop-simulation (SILS) setup. Furthermore, both the algorithms are validated with flight test data obtained from on-board data logger using an off-the shelf autopilot board (Ardupilot Mega APM-2.5) on SLYBIRD UAV. Originality/value – The proposed architectures are of high value to accomplish INS/GPS fusion, which plays a vital role in autonomous guidance and navigation of an UAV.

Routing Architecture of Next-Generation Internet (RANGI)

2014 ◽  
pp. 83-97
Author(s):  
Xiaohu Xu ◽  
Meilian Lu
Keyword(s):  
Traffic Engineering ◽  
Transport Layer ◽  
Next Generation ◽  
Next Generation Internet ◽  
Ipv6 Network ◽  
Mapping System ◽  
Routing Scalability ◽  
Host Identity ◽  
Split Architecture ◽  
Tcp Connections

This chapter describes a new Identifier/Locator split architecture, referred to as Routing Architecture for the Next Generation Internet (RANGI), which aims to deal with the routing scalability issues. Similar to the Host Identity Protocol (HIP) architecture, RANGI also introduces a host identifier (ID) layer between the IPv6 network layer and the transport layer and hence the transport-layer associations (e.g., TCP connections) are no longer bound to IP addresses, but to the host IDs. The major difference from the HIP architecture is that RANGI adopts hierarchical and cryptographic host IDs which have delegation-oriented structure. The corresponding ID to locator mapping system in RANGI is designed to preserve a “reasonable” business model and clear trust boundaries. In addition, RANGI uses special IPv4-embeded IPv6 addresses as locators and hence site-controllable traffic-engineering and simplified renumbering can be easily achieved while the deployment cost of such new architecture is reduced greatly.

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