Operating systems architecture future directions for heterogeneous communication systems

1998 ◽  
Vol 23 (4) ◽  
pp. 35-37
Author(s):  
Li Li ◽  
Dharma P. Agrawal
Keyword(s):  
Operating Systems ◽  
Communication Systems ◽  
Future Directions ◽  
Systems Architecture

scholarly journals Application of Advanced Communication Technologies in the Improvement of Traffic Safety

2017 ◽  
Vol 2 (1-2) ◽  
Author(s):  
Goran Z. Marković
Keyword(s):  
Traffic Safety ◽  
Communication Systems ◽  
Communication Technologies ◽  
Vehicular Communication ◽  
Future Directions ◽  
Car Industry ◽  
Dedicated Short Range Communications ◽  
Traffic Safety Applications ◽  
Safety Applications

Incorporation of advanced info-communication technologies into vehicular environment currently captures a large attention by numerous investigators, telecommunications operators, traffic safety regulatory institutions, car industry manufacturers and other interested participants. In this paper, we overview of some prospective wireless communication technologies, such as the DSRC (Dedicated Short Range Communications) and advanced LTE (Long Term Evolution) mobile communication systems, which are considered as two promising candidates to support future traffic safety applications in vehicular environment is presented. The communication requirements of some active traffic safety applications are pointed. A summary of various types of communications for intelligent VCS (Vehicular Communication System) applications is given. Some future directions and challenging issues for implementing traffic safety applications are also discussed. Our goal is to demonstrate the growing impact and importance of modern communication technologies in achieving future traffic accident-free roads.

The Behavior Chain Interruption Strategy: A Review of Research and Discussion of Future Directions

2001 ◽  
Vol 26 (1) ◽  
pp. 37-49 ◽  
Author(s):  
Mark Carter ◽  
Julie Grunsell
Keyword(s):  
Communication Skills ◽  
Communication Systems ◽  
Severe Disabilities ◽  
Future Research ◽  
Future Directions ◽  
Behavior Chain ◽  
Teaching Procedure ◽  
Communication Device ◽  
Naturalistic Teaching ◽  
Wide Range

This review examines research studies that utilize the behavior chain interruption strategy (BCIS) to teach communication skills to individuals with severe disabilities. The BCIS is a naturalistic teaching procedure that uses an interruption to a behavior chain (i.e., a routine) as the point of instruction. The BCIS has been successfully applied to the teaching of communication skills to individuals across a wide range of ages and of levels of disability, including learners with multiple disabilities. It has been employed to teach a range of communication forms, including pictorial communication systems, natural gestures, signing, and a switch activated communication device. However, a number of questions remain regarding the BCIS. In particular, it is questioned whether the type of interruptions employed in the procedure are likely to occur outside a training context and whether communication taught with the procedure generalizes to out-of-routine contexts. Implications for practice are considered and suggestions are offered for future research.

scholarly journals “EN BY I RUSLAND”: DANISH TRAVELLER’S IDEA OF EARLY MODERN RUSSIA (Based on the travel diary of Just Juel, 1709–1711)

2019 ◽  
pp. 83-95
Author(s):  
Iryna Papa
Keyword(s):  
Early Modern ◽  
Communication Systems ◽  
18Th Century ◽  
Underdeveloped Country ◽  
Economic Research ◽  
Systems Architecture ◽  
Travel Diary ◽  
Mental Map ◽  
Food Market ◽  
European Periphery

This article deals with the concept of the periphery and its definition in the early 18th century. According to Peter Burke and his reflections in «History and Social theory», the known dichotomy «centre-periphery» (I. Wallerstein) can be employed in historical studies, not only in political or economic research. Therefore we aim to analyze the travel diary written by the Danish ambassador Just Juel within his diplomatic mission to Muscovy (1709–1711) and outline his main impressions and conclusions on the early-modern Russian cities and other «issues» (e.g. road infrastructure, economy, communication systems, architecture, food market) which later contribute to the image of Russia in the early modern epoch. This ego-narrative contains some prevailing views of Russia as the European periphery: distant, uncivilized, poorly connected with the rest of the continent, economically and politically underdeveloped country. Also, this travel account shapes peculiar Danish perception of the early-modern Petrine Russia and its location on the mental map.

Advanced Retransmission Protocols for Critical Wireless Communications

2017 ◽  
pp. 252-269
Author(s):  
Salima El Makhtari ◽  
Mohamed Moussaoui ◽  
Ahmed El Oualkadi ◽  
Hassan Samadi
Keyword(s):  
Fading Channel ◽  
Communication Systems ◽  
Mobile Technologies ◽  
Wireless Communication Systems ◽  
Type Ii ◽  
Main Constituent ◽  
Systems Architecture ◽  
Related Application ◽  
Retransmission Protocols ◽  
Cellular Mobile

This chapter provides background about Hybrid Automatic Repeat reQuest (HARQ) protocols. First, the critical situations that may be faced by wireless communication systems especially cellular mobile technologies in case of very noisy radio channels are introduced. Particularly, the chapter introduces the HARQ protocols, their main constituent components as well as some related application areas. Then, the state-of-the-art of HARQ protocols is presented. The next section explains the three basic ARQ protocols. Then, the different HARQ types are detailed. Then, a mathematical model of type II HARQ based on Rayleigh fading channel is provided. This analytical analysis is followed by a discussion of the throughput which is one of the most interesting metrics used to measure the performance of HARQ systems. The readers can find in the next section a description of the HARQ systems architecture where 3GPP LTE is used to illustrate and explain how such systems operate. Finally, the last section concludes the chapter.

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