Stable real-time video distribution by exploiting cloud and peer-to-peer interaction

2017 ◽  
pp. 271-302
Author(s):  
Maria Efthymiopoulou Efthymiopoulou ◽  
Nikolaos Efthymiopoulos Efthymiopoulos
Keyword(s):  
Real Time ◽  
Peer Interaction ◽  
Peer To Peer ◽  
Video Distribution

‘I will not put this request at the very beginning’

2019 ◽  
Vol 4 (1) ◽  
pp. 37-58
Author(s):  
Qun Zheng ◽  
Ying Xu
Keyword(s):  
Peer Interaction ◽  
Language Use ◽  
Peer To Peer ◽  
Language Pedagogy ◽  
Power Difference ◽  
Direct Form ◽  
L2 Learners

Pragmatic (in)felicity in requests refers to the (in)appropriateness and (im)politeness of one's language use. It has been a great challenge to L2 learners, as they are likely to compose grammatically correct but pragmatically infelicitous requests. Such infelicity could be associated with pragmalinguistic and sociopragmatic factors, yet whether L2 learners are aware of those factors has been underexplored. To understand the effects of power, imposition, and modifications on email perception, we designed a matched guise test for 224 Chinese L2 learners, who were instructed to rate from 1 (very inappropriate/impolite) to 5 (very appropriate/polite) on four email requests (Power±; Imposition±). We found that (1) learners are highly aware of pragmalinguistic factors because they perceive requests mitigated by internal and external modifications as more appropriate and polite (p < .05), (2) learners have limited awareness of power difference as they rank direct form as inappropriate in peer-to-peer interaction, and (3) learners cannot realise fully the sociopragmatic factors involved in high-imposition situations. The awareness of pragmatic (in)felicity among learners seems to be underdeveloped as regards degree of power and imposition. The findings could have some implications in language pedagogy.

Real Time Energy Monitoring and Control Model for Peer-to-Peer Integrated Hybrid Supply System

2021 ◽  
Author(s):  
Kufre Esenowo Jack ◽  
Nsikak John Affia ◽  
Uchenna Godswill Onu ◽  
Emmanuel Okekenwa ◽  
Ernest Ozoemela Ezugwu ◽  
...  
Keyword(s):  
Real Time ◽  
Control Model ◽  
Peer To Peer ◽  
Supply System ◽  
Monitoring And Control ◽  
Energy Monitoring ◽  
And Control

scholarly journals Let's chat: developmental neural bases of social motivation during real-time peer interaction

2017 ◽  
Vol 21 (3) ◽  
pp. e12581 ◽  
Author(s):  
Katherine Rice Warnell ◽  
Eleonora Sadikova ◽  
Elizabeth Redcay
Keyword(s):  
Real Time ◽  
Peer Interaction ◽  
Social Motivation ◽  
Neural Bases

Peer-to-Peer Video Streaming

2014 ◽  
pp. 169-228
Author(s):  
Jânio M. Monteiro ◽  
Rui S. Cruz ◽  
Charalampos Z. Patrikakis ◽  
Nikolaos C. Papaoulakis ◽  
Carlos T. Calafate ◽  
...  
Keyword(s):  
Video Streaming ◽  
Ip Networks ◽  
Peer To Peer ◽  
The Internet ◽  
Special Focus ◽  
Great Success ◽  
Multicast Protocols ◽  
Video Distribution ◽  
To Receive

The Internet as a video distribution medium has seen a tremendous growth in recent years. Currently, the transmission of major live events and TV channels over the Internet can easily reach hundreds or millions of users trying to receive the same content using very distinct receiver terminals, placing both scalability and heterogeneity challenges to content and network providers. In private and well-managed Internet Protocol (IP) networks these types of distributions are supported by specially designed architectures, complemented with IP Multicast protocols and Quality of Service (QoS) solutions. However, the Best-Effort and Unicast nature of the Internet requires the introduction of a new set of protocols and related architectures to support the distribution of these contents. In the field of file and non-real time content distributions this has led to the creation and development of several Peer-to-Peer protocols that have experienced great success in recent years. This chapter presents the current research and developments in Peer-to-Peer video streaming over the Internet. A special focus is made on peer protocols, associated architectures and video coding techniques. The authors also review and describe current Peer-to-Peer streaming solutions.

A Novel Security Architecture for Peer-to-Peer IMS System

2013 ◽  
Vol 664 ◽  
pp. 1076-1081
Author(s):  
Xin Chen
Keyword(s):  
Real Time ◽  
Communication Systems ◽  
Peer To Peer ◽  
Security Architecture ◽  
Central Authority ◽  
Security Issue ◽  
Sip Protocol ◽  
Peer Network ◽  
Scalable System ◽  
Peer To Peer Network

Recently, some proposals suggest to use a peer-to-peer network instead of servers to facilitate SIP user registration and location in IMS communication systems. Due to the lack of central authority, security issue becomes one of the main problems in such P2P IMS systems. In this paper, we propose a novel security architecture for P2P IMS system. By using this architecture, our P2P IMS system becomes a fully distributed secure system in which there is not a central server indeed. Furthermore, our system is a scalable system which is capable of anonymous yet accountable real time communication based on SIP protocol which enables the system compatible with any existing IMS systems.

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