An Adaptive Transport Service for Multimedia Streams

نویسندگان

  • Luis Rojas-Cardenas
  • Laurent Dairaine
  • Patrick Sénac
  • Michel Diaz
چکیده

The study and the implementation of an adaptive service for multimedia streams based on Partial Order and partial reliability Connections (POC) is presented in this paper. A POC connection provides a service authorized to support both bounded losses and bounded disorder. Such parameters can be used to accurately define the range of conditions over which an adaptive application can perform acceptably. The POC concept is motivated by the fact that heterogeneous switched packet networks are plagued by unordered delivery and packet losses which tax performances of both current protocols and application. The performances of the POC adaptive service are analyzed through one representative multimedia application: a MPEG video server.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Scalable Video Coding and Transport over Broad-Band Wireless Networks

With the emergence of broadband wireless networks and increasing demand of multimedia information on the Internet, wireless multimedia services are foreseen to become widely deployed in the next decade. Real-time video transmission typically has requirements on quality of service (QoS). However, wireless channels are unreliable and the channel bandwidth varies with time, which may cause severe ...

متن کامل

Transmission of MPEG-2 Streams over Non-Guaranteed Quality of Service Networks

The explosive growth of the Internet and the intranets attracted a great deal of attention to the implementations and performances of networked multimedia services, which involve the transport of real-time multimedia streams over non-guaranteed quality of service (QoS) networks. In this paper, we discuss some issues related to the transport of MPEG-2 streams over such networks by means of the m...

متن کامل

Asymptotic Analysis of Rate Adaptive Multimedia Streams

We investigate dynamic adaptation policies for rate adaptive multimedia streams in a network where each route traverses at most one bottleneck link. Dynamic adaptation allows clients to dynamically adapt the stream subscription level, i.e., time-average stream rate, in response to changes in available link capacity, and allows the system to maintain a lower blocking probability than is possible...

متن کامل

A Transport-Level Proxy for Secure Multimedia Streams

service, firewalls need more than static packet filtering and application-level proxies. SOCKS is an application-independent transport-level proxy that offers user-level authentication and data encryption. An extended SOCKS UDP binding model with appropriate socket calls is proposed to provide complete support for UDP-based, multimedia streaming applications. T he increasing popularity of multi...

متن کامل

Asymptotic Analysis of Optimal Adaptation of Rate Adaptive Multimedia Streams

We first discuss the Quality of Service (QoS) of a rate adaptive stream and argue that the time-average mean rate is a reasonable first-order proxy for user perceived performance. Next, we discuss general system level tradeoffs associated with rate adaptive streams. We then identify optimal adaptation policies under different assumptions of available information. The optimal policies make clear...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1999