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A New Data Scheduling Scheme for P2P Streaming in Mobile Networks

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4 Author(s)
Nana He ; Beijing Univ. of Posts & Telecommun., Beijing, China ; Hailun Xia ; Zhimin Zeng ; Ning Wang

To combat the challenges(the mismatch between throughput and layer delivery ratio, the useless packets in high layers due to the loss of packets in low layers) brought by the layered encoding to data scheduling for P2P streaming in the mobile network, We propose a new data scheduling scheme, named MLayerP2P. The key idea of the MLayerP2P is: A 3-Stage Model is used to schedule the absent streaming data, where the missed data with high importance is requested in high priorities and a variable windows number is determined in the Free Stage, in the Decision stage the first step of the subscribed layers decision is made, and the second step is made in the Remedy Stage, in the Remedy Stage the available bandwidth is firstly allocated to the missed blocks in the base layer. Simulation results show that the MLayerP2P outperforms other schemes in throughput, delivery ratio, useless packet ratio and interrupt times obviously.

Published in:

Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on

Date of Conference:

23-25 Sept. 2010