A loop architecture of DQDB with slot reuse (LDQDB-SR) segmented by erasure nodes was studied to overcome the performance limitation due to the nature of the unidirectional bus architecture of DQDB with slot reuse. The LDQDB-SR adopts the destination slot release and an intersegment bandwidth regulation based on the distributed queuing system of DQDB. This network suffers not only from severe t...

Carrier sense multiple-access (CSMA) protocols are widely used in local area networks (LAN’s) to control access to a shared communications channel such as a coaxial cable or radio frequency band. , CSMA protocols are designed to exploit the property that the signal propagation time across the LAN is much smaller than the packet transmission time. Consequently, their performance depends on the e...

Traditional microeconomic modeling of public transport (usually a single line) has been based on aggregated demand description, that is, total ridership along a line and average journey length. This way, aggregation is spatial rather than temporal, as most public transport systems are designed for the period of largest demand. With this approach, various authors have formulated optimization mod...

Many existing protocols indicate that full utilization and fairness might be incompatible in high-speed-high-latency MANs or LANs. The purpose of this paper is to study the fundamental limitations of dual bus networks, in terms of full utilization, fairness and bounded access delay. A new protocol called FUFA (fully utilized and fair) is used to demonstrate some of these basic properties. We de...

The aim of this paper is to develop a cooperative control model for improving the operational efficiency of Bus Rapid Transit (BRT) vehicles. The model takes advantage of the emerging connected vehicle technology. A connected vehicle centre is established to assign a specific reservation time interval and transmit the corresponding dynamic speed guidance to each BRT vehicle. Furthermore, a set ...

BACKGROUND Although researchers have explored associations between mixed-use development and physical activity, few have examined the influence of specific land uses. PURPOSE This study analyzes how the accessibility, intensity, and diversity of nonresidential land uses are related to walking for transportation. METHODS Multinomial logistic regression was used to investigate associations be...

A new carrier sensing scheme for CSMA protocols on unidirectional bus topologies is proposed and analyzed. Several existing networks such as cable TV data networks and the well known broadband Ethernet (IEEE 802.2 10BROAD36) have unidirectional bus topology. The proposed scheme combines carrier sensing on the inbound and the outbound channels. Distances to the head end are specifically included...

The Controller Area Network is widely used as fieldbus in many distributed control systems. In addition to control information, a voice communication running on the same bus may have several advantages. This paper deals with an efficient implementation of a voice channel over an already designed CAN network. In particular, the solutions to minimize the band occupation and to cope with the large...

Home > Printer-friendly PDF > Printer-friendly PDF DATE 2015 will take place in Alpes Congres Alpexpo Avenue d'Innsbruck Grenoble ALPEXPO is the place where DATE 2015 will take place. It is easy accessible by car and public transportation with two airports nearby (Lyon and Geneva). Download travel information (pdf) [1] Public Transport in Grenoble to ALPEXPO (Map [2]) You can access AlpExpo usi...