Mixed RF-VLC Relaying Systems for High-Speed Rail Communication

Resource Allocation for Mixed RF and Hybrid RF/FSO Relaying

In this paper, we consider a mixed RF and hybrid RF/FSO system where several mobile users transmit their data over an RF link to a relay node (e.g. a small cell base station) and the relay forwards the information to a destination (e.g. a macro cell base station) over a hybrid RF/FSO backhaul link. The relay and the destination employ multiple antennas for transmission and reception over the RF...

High-speed Wireline Communication Systems

This report is a literature survey on multicarrier wireline communication systems, focusing primarily on the recent enhancements to the physical layer in Discrete Multitone (DMT) Modulation systems. We investigate methods used to improve the data rate versus reach performance of DMT systems proposed in the G.992.3 Asymmetric Digital Subscriber Lines-2 (ADSL2) and G.992.5 ADSL2+ standards. We al...

High-Speed Rail IDEA Program FIBER OPTICAL SENSORS FOR HIGH-SPEED RAIL APPLICATIONS

Dispatch coordination between high-speed and conventional rail systems

Cross-line trains, as a link between high-speed and conventional rail networks, will increase the complexity of transport organization and lead to significant challenges in dispatch coordination between the two systems. Based on the characteristics of high-speed transport organization, this paper deals with the necessity of dispatch coordination between high-speed and conventional lines from th...

Megacities and High Speed Rail systems : which comes first ?

A megacity is usually defined as a metropolitan area with a total population in excess of 10 million people. The number of megacities is increasing worldwide: in 1950 they were 4; in 1980 they were 28, in 2002 they were 39 and by 2015 they will be 59. In most agglomerations and megacities, urban planning and public infrastructure can guide the urban development in order to achieve a proper sust...