On peer-to-peer media streaming - Trang 363-371
Dongyan Xu, M. Hefeeda, S. Hambrusch, B. Bhargava
In this paper, we study a peer-to-peer media streaming system with the following characteristics: (1) its streaming capacity grows dynamically; (2) peers do not exhibit server-like behavior; (3) peers are heterogeneous in their bandwidth contribution; and (4) each streaming session may involve multiple supplying peers. Based on these characteristics, we investigate two problems: (1) how to assign ...... hiện toàn bộ
#Streaming media #Peer to peer computing #Bandwidth #Nonhomogeneous media #Admission control #Protocols #Delay effects #Joining processes #Distributed computing
A reliable multicast algorithm for mobile ad hoc networks - Trang 563-570
T. Gopalsamy, M. Singhal, D. Panda, P. Sadayappan
A reliable multicast algorithm, called RMA, for mobile ad hoc networks is presented that is based on a new cost criterion, called link lifetime, for determining the optimal path between a pair of nodes. The algorithm has the characteristics of using an undirected graph for its routing operations rather than a fixed structure like a tree or a mesh. Previously proposed routing metrics for mobile ad ...... hiện toàn bộ
#Multicast algorithms #Mobile ad hoc networks #Routing #Ad hoc networks #Analytical models #Bandwidth #Cost function #Tree graphs #Stability #Performance analysis
Fast Collect in the absence of contention - Trang 537-543
B. Englert, E. Gafni
We present a generic module, called Fast Collect. Fast Collect is an implementation of single-writer multi-reader (SWMR) shared-memory in an asynchronous system in which a processor updates its cell and then reads in any order all the other cells. Our simple implementation of Fast Collect uses some multiwriter multi-reader (MWMR) variables and one local Boolean per processor, such that eventually,...... hiện toàn bộ
#Concurrent computing #Costs #Software algorithms #Adaptive algorithm #Chromium #Distributed algorithms #Computer bugs #Mathematics #Computer science #Steady-state
Dynamic QoS-aware multimedia service configuration in ubiquitous computing environments - Trang 311-318
Xiaohui Gu, K. Nahrstedt
Ubiquitous computing promotes the proliferation of various stationary, embedded and mobile devices interconnected by heterogeneous networks. It leads to a highly dynamic distributed system with many devices and services coming and going frequently. Many emerging distributed multimedia applications are being deployed in such a computing environment. In order to make the experience for a user truly ...... hiện toàn bộ
#Multimedia computing #Ubiquitous computing #Pervasive computing #Quality of service #NASA #Distributed computing #Runtime environment #Contracts #Intelligent networks #Computer networks
D-Stampede: distributed programming system for ubiquitous computing - Trang 209-216
S. Adhikari, A. Paul, U. Ramachandran
We focus on an important problem in ubiquitous computing, namely, programming support for the distributed heterogeneous computing elements that make up this environment. We address the interactive, dynamic, and stream-oriented nature of this application class and develop appropriate computational abstractions in the D-Stampede distributed programming system. The key features of D-Stampede include ...... hiện toàn bộ
#Ubiquitous computing #Distributed computing #Pervasive computing #Hardware #Space technology #Dynamic programming #Parallel processing #Middleware #Educational institutions #Drives
Power-aware prefetch in mobile environments - Trang 571-578
Liangzhong Yin, Guohong Cao, C. Das, A. Ashraf
Most of the prefetch techniques used in the current cache management schemes do not consider the power constraints of the mobile clients and other factors such as the size of the data items, the data access rate, and the data update rate. We address these issues by proposing a power-aware prefetch scheme, called the value-based adaptive prefetch (VAP) scheme. The VAP scheme defines a value functio...... hiện toàn bộ
#Prefetching #Mobile computing #Energy consumption #Bandwidth #Energy management #Energy states #Measurement #Performance analysis #Computational modeling #Handheld computers
Dynamic data broadcasting with traffic awareness - Trang 112-119
Chih-Lin Hu, Ming-Syan Chen
Data dissemination has significantly served as a scalable data delivery mechanism in wireless networks. However, even though the broadcast traffic has the nature of dynamic changes, most previous research efforts were elaborated upon the premise of static workloads and access patterns without having proper traffic awareness. In this paper, we address the existence of client impatience and accordin...... hiện toàn bộ
#Broadcasting #Telecommunication traffic #Feedback #Frequency estimation #Bandwidth #Wireless networks #Degradation #File servers #Energy consumption #Electronic mail
A working-set approach to reduce the download-execution time of mobile programs - Trang 239-248
T. Gamou
The on-demand downloading of application code over a wireless network is an emerging paradigm for the distributed environment of mobile computing devices. In this environment, a user must wait while a mobile computing device fetches the application code over the network prior to execution. To reduce this downloading latency, we have developed a download approach based on working sets, and have des...... hiện toàn bộ
#Mobile computing #Delay #Bandwidth #Wireless networks #Computer networks #Computational modeling #Distributed computing #Personal digital assistants #IP networks #Java
Cost-effective switching fabrics with distributed control for scalable routers - Trang 65-73
Nian-Feng Tzeng, M. Mandviwalla
This paper deals with scalable switching fabrics for high-performance routers with large numbers of ports for connecting external links operating at various speeds to arrive at aggregate rates up to multi-terabits per second. The proposed switching fabrics employ no centralized scheduling and consist of small routing units (RUs), which are interconnected by multistage-based connecting components (...... hiện toàn bộ
#Fabrics #Distributed control #Routing #Hardware #Joining processes #Aggregates #Scalability #Packet switching #Asynchronous transfer mode #Distributed computing
On-demand multicasting in ad-hoc networks:comparing AODV and ODMRP - Trang 453-454
T. Kunz, E. Cheng
Multicasting can efficiently support a wide variety of applications that are characterized by a close degree of collaboration, typical for many mobile ad-hoc network (MANET) applications currently envisioned. To deal with the specific characteristics of MANETs, new multicast protocols that operate in an on-demand manner are being proposed and investigated. Our results show that a tree-based on-dem...... hiện toàn bộ
#Intelligent networks #Ad hoc networks #Multicast protocols #Routing protocols #Broadcasting #Mobile ad hoc networks #Unicast #Network topology #Bidirectional control #Computer applications