Four or more streams of MIMO transmission are needed to achieve data rates in excess of 1 Gbps in LTE-Advanced systems. However, accommodating more antennas for four or more streams of MIMO transmission means that a rise in costs and the difficulty of securing the space for additional antennas must be dealt with. This article describes NTT DOCOMO’s new transmission technology, Smart Vertical MI...

Abs t r ac t . The Multimedia Multicast Channel is a dissemination-oriented communication abstraction providing a service analogous to that of a cable television broadcast channel. A source transmits multimedia information such as video and audio streams onto a channel, and a varying number of receivers "tune in" to the channel to receive a selected set of the streams. To support heterogeneity~...

Multimedia streams such as audio and video impose tight temporal constraints due to their continuous nature. Often, different multimedia streams must be presented in a synchronized way. We introduce a scheme for the continuous and synchronous delivery of distributed stored multimedia streams across a communications network. We propose a protocol for the synchronized playback, compute the buffer...

Recent work has examined using application-specific knowledge of streaming communication to optimize network routing (for throughput/performance) and/or design (for simpler hardware). However, previous techniques have assumed that the communication streams are directly mapped to networks-on-chip. In contrast, this paper explores the use of communication transformations (TxComm) to achieve (1) h...

Many sources produce data continuously. Examples include customer click streams, telephone record calls, large sets of web pages, multimedia and scientific data, sets of retail chain transactions, etc. These sources are called data streams. Examples of applications include network monitoring, web applications, sensor networks, telecommunications data management, financial applications, etc. In ...

The objective of this paper is to implement the Active Network based Active Queue Management Technique for providing Quality of Service (QoS) using Network Processor(NP) based router to enhance multimedia applications. The performance is evaluated using Intel IXP2400 NP Simulator. The results demonstrate that, Active Network based Active Queue Management has better performance than RED algorith...

Recently, active networks have been highlighted as a key enabling technology to obtain immense flexibility in terms of network deployment, configurability, and packet processing. Exploiting this flexibility, we present an active network application for real-time speech transmission where plugin modules are downloaded onto certain network nodes to perform application-specific packet processing. ...

Data streams have recently attracted attention for their applicability to numerous domains including credit fraud detection, network intrusion detection, and click streams. Stream clustering is a technique that performs cluster analysis of data streams that is able to monitor the results in real time. A data stream is continuously generated sequences of data for which the characteristics of the...

Multimedia streams such as audio and video impose tight temporal constraints due to their continuous nature. Often, different multimedia streams must be presented in a synchronized way. We introduce a scheme for the continuous and synchronous delivery of distributed stored multimedia streams across a communications network. We propose a protocol for the synchronized playback, compute the buffer...

Detecting bursts in data streams is an important and challenging task, especially in stock market, traffic control or sensor network streams. Burst detection means the identification of non regular behavior within data streams. A specifically crucial challenge on burst detection is to identify bursts in the case of non-stationary data. One approach is to apply thresholds to discover such bursts...