Topology Dynamics in a P2PTV Network

“…The main motivations for these studies are the impact of this traffic in network communication [10], the improvements it brings to IPTV network operators [11], the Quality of Experience (QoE) provided [7], [12], alternative distribution algorithms [13] and its growing number of users [5].…”

Section: A P2p-tv Applicationsmentioning

confidence: 99%

Optimization of P2P-TV traffic by means of header compression and multiplexing

Quintana-Ramirez

Saldaña

Ruíz-Mas

et al. 2013

2013 21st International Conference on Software, Telecommunications and Computer Networks - (SoftCOM 2013)

View full text Add to dashboard Cite

Abstract-This paper studies the optimization of the traffic of a P2P-TV application (SOPCast). First, a traffic characterization is deployed, and it is observed that the service generates a high rate of small UDP packet bursts between peers. Then, an optimization method based on header compression and multiplexing is used for sending together the packets with the same destination. Two multiplexing policies are defined and tested. The first one is based on a fixed multiplexing period, and the other one defines an interpacket time threshold, with the aim of multiplexing together a whole traffic burst. Simulations using real traffic traces of SOPCast are performed in order to estimate the expected savings for both policies. The results show that the efficiency is improved, achieving uplink bandwidth savings between 26% and 33% for the period-based policy, and roughly 35% for the policy based on a threshold. The amount of packets per second is also reduced by a factor of 10 in both cases. As a counterpart, the addition of a small retention delay is necessary, but the tests show that it does not impair user's experience.

show abstract

“…Currently, the majority of existing implementations and methods are related to the second type [1][2][3][4]. This stems from their flexibility and the high fault tolerance.…”

Section: Background and Previous Workmentioning

confidence: 99%

Peer-to-Peer Multicasting Inspired by Huffman Coding

Polaczyk

Chołda

Jajszczyk

2013

Journal of Computer Networks and Communications

View full text Add to dashboard Cite

Stringent QoS requirements of video streaming are not addressed by the delay characteristics of highly dynamic peer-to-peer (P2P) networks. To solve this problem, a novel locality-aware method for choosing optimal neighbors in live streaming multicast P2P overlays is presented in this paper. To create the appropriate multicast tree topology, a round-trip-time (RTT) value is used as a parameter distinguishing peers capabilities. The multicast tree construction is based on the Huffman source coding algorithm. First, a centrally managed version is presented, and then an effective use of a distributed paradigm is shown. Performance evaluation results prove that the proposed approach considerably improves the overlay efficiency from the viewpoint of end-users and content providers. Moreover, the proposed technique ensures a high level of resilience against gateway-link failures and adaptively reorganizes the overlay topology in case of dynamic, transient network fluctuations.

show abstract

Topology Dynamics in a P2PTV Network

Cited by 21 publications

References 5 publications

P2PTV multi-channel peers analysis

P2PTV multi-channel peers analysis

Optimization of P2P-TV traffic by means of header compression and multiplexing

Peer-to-Peer Multicasting Inspired by Huffman Coding

Contact Info

Product

Resources

About