Presenting an advanced simulation tool-set for video transmission performance evaluation is the objective of this paper. This tool-set integrates NS-2 with Evalvid plus a new coding mechanism: Multiple Description Coding (MDC). Using the integrated NS-2 ...

Presents a method to establish real-time connections with guaranteed quality-of-services, based on per-session (/spl sigma/,/spl rho/)-characterization. Under two distinctive service disciplines, rate proportional processor sharing and fixed rate processor ...

The prospects of multimedia in mobile communication depend largely on effective design of interactive multimedia applications now. Multimedia Messaging Service (MMS) and streaming are two potential multimedia applications for mobile communication. Though ...

In this paper, packet loss rate and frame rate control finction for multimedia communication systems under heterogeneous environment by the wired and the wireless networks is proposed. In our suggested system, as channel coding, FEC (Forward Error Correction) ...

Abstract: Multimedia applications integrate a variety of media namely, audio, video, images, graphics, text, and data, each of which has different quality of service (QoS) requirements. To study the support of multimedia traffic on high speed protocols, ...

Next generation cellular wireless communication networks aim to provide a variety of quality-ofservice (QoS) sensitive packet based services to downlink users. Included amongst these are real-time multimedia services, which have stringent delay requirements. ...

Abstract: This paper presents fast algorithms for compositing two or more videos which have been compressed using the JPEG (Joint Picture Experts Group) compression standard. Their performance is improved over traditional methods by processing compressed ...

An indoor wireless network based on room-sized cells has been prototyped at AT&T Bell Laboratories to investigate ubiquitous tetherless access to multimedia information. A distinguishing feature of this network, named SWAN, is its use of end-to-end ATM ...

A multimedia communication system combines many of the information resources such as text, images, data, fax, video and audio signals using the networking power of existing network operating systems (NOS). The Novell NetWare and Microsoft Windows facilities ...

In multimedia, multiparty communications a typical participant receives and often generates multiple real-time streams. Network resources are dedicated to each stream and are dynamically allocated and released in response to changing users demands throughout ...

The preservation of QoS for multimedia traffic through a data network is a difficult problem. We focus our attention on video frame rate and study its influence on speech perception.When sound and picture are discrepant (e.g., acoustic 'ba' combined ...

Emerging web 2.0 technologies are increasingly making use of multimedia formats and furthermore allow users to produce their own content and refurbish information in a highly creative and collaborative way themselves. A new kind of web-enabled platform ...

Large scale e-Research environments face classical distributed challenges: performance, heterogeneous equipment and variable contexts. The users of such infrastructures want to benefit from full interactive environments based on multimedia streams (voice, ...

This paper proposes a media synchronization mechanism which adjusts the output timing among stored continuous media streams in multimedia communications. The proposed method consists of intra-stream and inter-stream synchronization mechanisms. The inter-stream ...

Many connection-oriented networks, such as low Earth orbit satellite (LEOS) systems and networks providing multipriority service using advance reservations, have capacities which vary over time. Connection admission control (CAC) policies which only ...

Multimedia distribution on demand will impose extremely severe bandwidth requirements on the distribution network and will require the use of very high capacity video servers. In the context of archival programs playout (typical video-on-demand applications), ...

This paper discusses an isochronous connection management protocol and its slot-reuse scheme for multimedia services on DQDB network. For asynchronous services, slot-reuse improves slot utilization, which has already been discussed in depth. However, ...

In this paper, a new dynamic bandwidth allocation scheme called Minimum Overflow Traffic Algorithm (MOTA) is proposed to assign the bandwidth for each traffic class in the hierarchical admission control structure in ATM network. The traffic types can ...

Periodic broadcast is a cost-effective solution for large-scale distribution of popular videos. Regardless of the number of video requests, this strategy guarantees a constant worst service latency to all clients, making it possible to serve a large ...

Abstract: This paper summarizes some observations made during our research project aiming at investigating the practical problems encountered during the implementation of interactive multimedia information systems. The prototype deals with digitally ...