Proceedings ArticleDOI
Feasibility evaluation of a communication-oriented P2P system in mobile environments
Zhonghong Ou,Erkki Harjula,Otso Kassinen,Mika Ylianttila +3 more
- pp 43
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TLDR
The feasibility evaluation of a structured communication-oriented Peer-to-Peer (P2P) system being used in mobile environments draws the conclusion that the UMTS access mode consumes slightly more power than the WLAN access mode in general.Abstract:
We present the feasibility evaluation of a structured communication-oriented Peer-to-Peer (P2P) system being used in mobile environments in this paper. The different levels of churn are modeled by the exponential distribution with varied value of mean online time. Our system utilizes Kademlia with some modifications as the underlying Distributed Hash Table (DHT) algorithm, and Peer-to-Peer Protocol (P2PP), one of the former candidates of Peer-to-Peer Session Initiation Protocol (P2PSIP) working group, as the signaling protocol. A prototype is implemented to evaluate the feasibility of mobile nodes acting as fully fledged peers. The prototype measurements show it is feasible for the mobile nodes to take part in the overlay from the viewpoints of CPU load and network traffic load. Through battery measurements, we draw the conclusion that the UMTS access mode consumes slightly more power than the WLAN access mode in general. Protocol packets with sizes of 200 bytes or less are observed to be the most energy efficient in the UMTS access mode.read more
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Journal ArticleDOI
Performance evaluation of a Kademlia-based communication-oriented P2P system under churn
TL;DR: A performance evaluation of a structured communication-oriented P2P system in the presence of churn is presented and it is drawn that in general the UMTS access mode consumes slightly more power than the WLAN access mode.
Proceedings ArticleDOI
Distributed resource directory architecture in Machine-to-Machine communications
Meirong Liu,Teemu Leppänen,Erkki Harjula,Zhonghong Ou,Archana Ramalingam,Mika Ylianttila,Timo Ojala +6 more
TL;DR: The DRD4M introduces two components: a resource registration component for registering resources and a resource lookup component with caching functionality for handling resource lookup with filtering, which enables the interoperability among heterogeneous devices and resource access to constrained devices from disparate network including the Internet.
Efficient super-peer-based coordinated service provision
TL;DR: A super-peer-based coordinated service provision framework is proposed to coordinate different service groups and service peers in resource sharing, aiming to enable service groups to adapt to dynamic service demands.
Journal ArticleDOI
Evaluation of hierarchical DHTs to mitigate churn effects in mobile networks
TL;DR: Results show that the implemented HDHTs perform more satisfactorily than a flat DHT because of better fault isolation and smaller cluster sizes at the cost of higher superpeer traffic.
References
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Proceedings ArticleDOI
Chord: A scalable peer-to-peer lookup service for internet applications
TL;DR: Results from theoretical analysis, simulations, and experiments show that Chord is scalable, with communication cost and the state maintained by each node scaling logarithmically with the number of Chord nodes.
Journal ArticleDOI
Chord: a scalable peer-to-peer lookup protocol for Internet applications
Ion Stoica,Robert Morris,David Liben-Nowell,David R. Karger,M. Frans Kaashoek,Frank Dabek,Hari Balakrishnan +6 more
TL;DR: Results from theoretical analysis and simulations show that Chord is scalable: Communication cost and the state maintained by each node scale logarithmically with the number of Chord nodes.
Book ChapterDOI
Kademlia: A Peer-to-Peer Information System Based on the XOR Metric
Petar Maymounkov,David Mazières +1 more
TL;DR: In this paper, the authors describe a peer-to-peer distributed hash table with provable consistency and performance in a fault-prone environment, which routes queries and locates nodes using a novel XOR-based metric topology.
Journal ArticleDOI
A survey of peer-to-peer content distribution technologies
TL;DR: This survey proposes a framework for analyzing peer-to-peer content distribution technologies and focuses on nonfunctional characteristics such as security, scalability, performance, fairness, and resource management potential, and examines the way in which these characteristics are reflected in and affected by the architectural design decisions adopted by current peer- to-peer systems.
Proceedings ArticleDOI
Revealing skype traffic: when randomness plays with you
TL;DR: This paper proposes a framework based on two complementary techniques to reveal Skype traffic in real time, exploiting the randomness introduced at the bit level by the encryption process to identify Skype traffic.
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