Peer-to-peer emerges as a better way for building applications on the Internet that require high scalability and availability. Peer-to-peer systems are usually organized into structured overlay networks, which provide...
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ISBN:
(纸本)9781605585987
Peer-to-peer emerges as a better way for building applications on the Internet that require high scalability and availability. Peer-to-peer systems are usually organized into structured overlay networks, which provide key-based routing capabilities to eliminate flooding in unstructured ones. Many overlay network protocols have been proposed to organize peers into various topologies with emphasis on different networking properties. However, applications are often stuck to a specific peer-to-peer overlay network implementation, because different overlay implementations usually provide very different interfaces and messaging mechanisms. In this paper, we present a framework for constructing peer-to-peer overlay networks in Java. First, networking is abstracted by the interfaces that use URIs to uniformly address peers on different underlying or overlay networks. Then, asynchronous and synchronous messaging support is built upon these interfaces. Finally, overlay networking interfaces are sketched to handle specific issues in overlay networks. We have constructed several overlay networks in this framework, and built peer-to-peer applications which are independent of overlay implementations. Copyright 2009 ACM.
In multipoint real-time communication, one member needs to transmit information to all of the other members. However, there are some problems in real-time multicasting. Because the network resource of each member is d...
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ISBN:
(纸本)9783642024801
In multipoint real-time communication, one member needs to transmit information to all of the other members. However, there are some problems in real-time multicasting. Because the network resource of each member is different among multicast members in heterogeneous access environment, the maximum quality of the video stream, which each member can receive, is also different among them. Thus, we propose a new algorithm to fairly determine the rate of each layer according to network resources of each member in the shared-tree type application-level layered multicast. We aim to guarantee the maximal quality of service of each member's communication according to each network resource. In addition, it is confirmed that our proposed method is effective through the quantitative performance evaluation.
The proceedings contain 33 papers. The topics discussed include: extending context spaces theory by predicting run-time context;cross-domain interoperability: a case study;a topology based approach for context-awarene...
ISBN:
(纸本)3642041884
The proceedings contain 33 papers. The topics discussed include: extending context spaces theory by predicting run-time context;cross-domain interoperability: a case study;a topology based approach for context-awareness in smart environments;anonymous agent coordination in smart spaces: state-of-the-art;on-the-fly situation composition within smart spaces;empower mobile workspaces by wireless networks and wearable computing;multimodal interaction with intelligent meeting room facilities from inside and outside;Ubi-Check: a pervasive integrity checking system;towards a lightweight security solution for user-friendly management of distributed sensor networks;cross-site management of user online attributes;analysis and optimization of aggregation in a reconfigurable optical ADD/DROP multiplexer;teletraffic capacity performance of WDM/DS-OCDMA passive optical network;estimation of GoS parameters in intelligent network;and a real-time algorithm for Skype traffic detection and classification.
We simulate the biological operations of a DNA computational algorithm for a combinatorial problem. We then perform sensitivity analysis in which we vary bio-op error rates to see which bio-ops affect the end result. ...
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We simulate the biological operations of a DNA computational algorithm for a combinatorial problem. We then perform sensitivity analysis in which we vary bio-op error rates to see which bio-ops affect the end result. Finally, we review three approaches to tune the algorithm in order to minimize significant error.
In Telecom Social Network, the Context-based Prediction Analysis is an important topic, and computing of some context parameters using great amount of data is a problem so far. Architecture of DMG ( Data Mining Grid i...
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ISBN:
(纸本)9781424448982
In Telecom Social Network, the Context-based Prediction Analysis is an important topic, and computing of some context parameters using great amount of data is a problem so far. Architecture of DMG ( Data Mining Grid is proposed and prototype of MDG is designed to solve the computing problem. Two of the important issues in DMG, which are the design of the workflow service in DMG and the distributed data mining algorithm, are investigated. Finally a sample application in telecom field Customer Chum Context Prediction Analysis is investigated and illustrated. In the sample application, Centrals, which is computed by parallel algorithm on DMG, is an important measure in Telecom Social Network. And it is an important context parameter proved by the experiment, which benefits to enhance the precise of context-based prediction of the customer chum in telecom social network.
computing of some parameters using great amount of data is a great challenge in data mining fields so far. DMG (Data Mining Grid) is designed to solve the computing problem. The design of the workflow service in DMG a...
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ISBN:
(纸本)9781424448982
computing of some parameters using great amount of data is a great challenge in data mining fields so far. DMG (Data Mining Grid) is designed to solve the computing problem. The design of the workflow service in DMG and the distributed data mining algorithm, are investigated. A sample application in telecom field Customer Value Analysis is and illustrated. In the sample application, Clique, which is Computed by parallel algorithm on data mining grid system, is an important measure in Telecom Social Network, which benefits to enhance the precise of context-based prediction of the customer value in telecom social network and work out information in expected duration. Telecom operators can take measures to gain more profit.
In this demo we present software extension for the Wireless open Access Research Platform (WARP), named as Linux Enriched WARP (LE-WARP). The objective of the LE-WARP is twofold. First, to make the WARP more independe...
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ISBN:
(纸本)9781605587400
In this demo we present software extension for the Wireless open Access Research Platform (WARP), named as Linux Enriched WARP (LE-WARP). The objective of the LE-WARP is twofold. First, to make the WARP more independent from external systems, e.g., need for external PC to be part of the WARP's network layer. This is achieved by introducing Linux OS to the platform. The second objective is to utilize a secondary network for coordinated statistics gathering from the WARPs. To demonstrate these features of LE-WARP, a prototype implementation consisting of distributed Time Division Multiple Access (TDMA) based MAC protocol with distributed time synchronization algorithm and the Optimized Link State Routing (OLSR) protocol for ad hoc networks is presented. The demonstration highlights the LE-WARP's ability to monitor the multihop test network consisting four nodes while utilizing the presented prototype implementation.
The proceedings contain 91 papers. The topics discussed include: experimental analysis of different metrics (object-oriented and structural) of software;discrete cosine transformation based image authentication and se...
ISBN:
(纸本)9780769537436
The proceedings contain 91 papers. The topics discussed include: experimental analysis of different metrics (object-oriented and structural) of software;discrete cosine transformation based image authentication and secret message transmission scheme;an architecture for mobile social networking applications;orthogonal hermite pulses for indoor communication with UWB (S-V) channel;a design of sensor web registry for wireless sensor networks with SOA approach;a new fast radix-2 decimation-In-frequency algorithm for computing the discrete Hartley transform;probability based search motion estimation algorithm;classification rule mining for object oriented databases: a brief review;amplitude -phase algorithm for SAR signal processing;and design of 1.3 GHz microstrip highpass filter using optimum distributed short circuited stubs.
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