scholarly journals Research and Design of P2P-SIP System Network Structure Based on JXTA

CONVERTER ◽  
2021 ◽  
pp. 627-634
Author(s):  
Wang Fei, Dong Yu
Keyword(s):  
Network Structure ◽  
Hash Table ◽  
Limited Range ◽  
P2p Network ◽  
Distributed Hash Table ◽  
Shared Resources ◽  
Improvement Strategy ◽  
Development Platform ◽  
Sip Protocol ◽  
Routing Mechanism

The network structure of P2P-SIP system based on JXTA is one of the core technologies in industrial intelligent Internet.JXTA is an open peer-to-peer platform, which provides basic application services for building P2P network. This paper chooses JXTA development platform to build P2P network, and then constructs SIP soft terminal on it. Firstly, it introduces the background knowledge, related research, P2P network technology, JXTA technology and SIP protocol. Then, the feasibility of p2p sip system is analyzed, including the combination of P2P and sip, network structure and framework structure. Then the routing mechanism of JXTA is deeply studied, including distributed index of shared resources, limited range traversal, dynamic view of sink node and loose and consistent distributed hash table (DHT). At the same time, this paper proposes an improvement strategy to overcome the shortcomings of JXTA routing mechanism such as limited range traversal and loose consistent DHT, that is, introducing the chord ring of consistent hash algorithm in the aggregation network layer. Based on the in-depth study of JXTA structured network and SIP protocol, a P2P SIP system is designed and implemented. The experimental results show that the system can maintain normal SIP communication without maintaining the central server.

Token Based Mutual Exclusion in Peer-to-Peer Systems

2012 ◽  
pp. 214-228 ◽  
Author(s):  
Mayank Singh ◽  
Shashikala Tapaswi
Keyword(s):  
Distributed Systems ◽  
Message Passing ◽  
Mutual Exclusion ◽  
Hash Table ◽  
Peer To Peer ◽  
Distributed Hash Table ◽  
Shared Resources ◽  
Peer To Peer Systems ◽  
Mutual Exclusion Algorithm ◽  
Message Overhead

Mutual exclusion is one of the well-studied fundamental primitives in distributed systems, and a number of vital solutions have been proposed to achieve the same. However, the emerging Peer to Peer systems bring forward several challenges to protect consistent and concurrent access to shared resources, as classical peer-to-peer systems, like Napster, Gnutella, et cetera, have been mainly used for sharing files with read only permission. In this chapter, the authors propose a quorum based mutual exclusion algorithm that can be used over any Peer to Peer Distributed Hash Table (DHT). The proposed approach can be seen as extension to traditional Sigma protocol for mutual exclusion in Peer to Peer systems. The basic idea is to reduce message overhead with use of smart nodes present in each quorum set and message passing between the current owners of resource with next resource requester nodes.

PChord: a distributed hash table for P2P network

2009 ◽  
Vol 5 (1) ◽  
pp. 49-58 ◽  
Author(s):  
Haiping Huang ◽  
Yan Zheng ◽  
Hongwei Chen ◽  
Ruchuan Wang
Keyword(s):  
Hash Table ◽  
P2p Network ◽  
Distributed Hash Table

scholarly journals Design of P2P-SIP System Network Structure Based on JXTA

CONVERTER ◽  
2021 ◽  
pp. 59-64
Author(s):  
Lei Shi, Chen Shi, Hongying Wang
Keyword(s):  
Implementation Process ◽  
Peer To Peer ◽  
P2p Network ◽  
Voice Over Internet Protocol ◽  
Collaborative Process ◽  
Development Platform ◽  
Sip Protocol ◽  
Discovery Service ◽  
Depth Study ◽  
Service Aggregation

Session Initiation Protocol (SIP) is one of the most important signaling connection protocols in the field of VoIP (Voice over Internet Protocol). However, the existing SIP network has some problems such as manual configuration, difficult maintenance and poor scalability. With the development of P2P (Peer-to-Peer) technology, the combination of SIP and P2P has become a trend. JXTA is an open peer-to-peer platform, which provides basic application services for building P2P network. The topic chooses JXTA development platform to build P2P network, and then constructs SIP soft terminal on it. Based on the in-depth study of JXTA structured network and SIP protocol, a P2P SIP system is designed and implemented. The system can maintain normal SIP communication without maintaining the central server. In this paper, the detailed design and implementation process of P2P-SIP system are given, including node join and leave, user join, user search and session establishment. This paper focuses on the implementation process of user search, that is, the collaborative process of discovery service, resolution service, aggregation service and endpoint routing service. Finally, the feasibility of the system is verified by functional test.

A New Authentication Method with Distributed Hash Table for P2P Network

2008 ◽  
Author(s):  
Atushi Takeda ◽  
Kazuo Hashimoto ◽  
Gen Kitagata ◽  
Salahuddin Muhammad Salim Zabir ◽  
Tetsuo Kinoshita ◽  
...  
Keyword(s):  
Hash Table ◽  
P2p Network ◽  
Distributed Hash Table

scholarly journals Agent-Based Coordinated Control of Power Electronic Converters in a Microgrid

Electronics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1031
Author(s):  
Maryam Nasri ◽  
Herbert L. Ginn ◽  
Mehrdad Moallem
Keyword(s):  
Hash Table ◽  
Power Sharing ◽  
Distributed Hash Table ◽  
Power Electronic ◽  
Power Electronic Converters ◽  
Agent Based ◽  
Development Framework ◽  
Study Results ◽  
Set Up ◽  
Microgrid Control

This paper presents the implementation of an agent-based architecture suitable for the coordination of power electronic converters in stand-alone microgrids. To this end, a publish-subscribe agent architecture was utilized as a distributed microgrid control platform. Over a distributed hash table (DHT) searching overlay, the publish-subscribe architecture was identified based on a numerical analysis as a scalable agent-based technology for the distributed real-time coordination of power converters in microgrids. The developed framework was set up to deploy power-sharing distributed optimization algorithms while keeping a deterministic time period of a few tens of milliseconds for a system with tens of converters and when multiple events might happen concurrently. Several agents participate in supervisory control to regulate optimum power-sharing for the converters. To test the design, a notional shipboard system, including several converters, was used as a case study. Results of implementing the agent-based publish-subscribe control system using the Java Agent Development Framework (JADE) are presented.

Improved Blockchain Commodity Traceability System Using Distributed Hash Table

2020 ◽  
Author(s):  
Wu Junhui ◽  
Wu Tuolei ◽  
Wu Yusheng ◽  
Chen Jie ◽  
Lin Kaiyan ◽  
...  
Keyword(s):  
Hash Table ◽  
Distributed Hash Table ◽  
Traceability System

scholarly journals The Management Strategy of Metadata in Large-scale Network Storage System

2018 ◽  
Vol 228 ◽  
pp. 01011
Author(s):  
Haifeng Zhong ◽  
Jianying Xiong
Keyword(s):  
Large Scale ◽  
Storage System ◽  
Hash Table ◽  
Distributed Hash Table ◽  
Distributed Data ◽  
Mass Storage ◽  
Large Scale Network ◽  
Network Storage System ◽  
Mass Storage System ◽  
Scale Network

The wan Internet storage system based on Distributed Hash Table uses fully distributed data and metadata management, and constructs an extensible and efficient mass storage system for the application based on Internet. However, such systems work in highly dynamic environments, and the frequent entry and exit of nodes will lead to huge communication costs. Therefore, this paper proposes a new hierarchical metadata routing management mechanism based on DHT, which makes full use of the node stabilization point to reduce the maintenance overhead of the overlay. Analysis shows that the algorithm can effectively improve efficiency and enhance stability.

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