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Retransmission Policy Performance for Concurrent Multipath Transfer in Dynamically Changing Channels

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4 Author(s)
Fenghua Wang ; State Key Lab. of Networking & Switching Technol., Beijing Univ. of Posts & Telecommun., Beijing, China ; Dongliang Xie ; Yan Shi ; Ri Ma

There will be buffer blocking in concurrent multipath transfer (CMT), when the receiver buffer is limited. A wise choice of retransmission policy helps reduce buffer blocking. In this paper, it is demonstrated that none of the retransmission policy gets the best performance at all times in the dynamically changing channels. Here we study that how the relative factors affect the performances of typical retransmission policies. Then buffer size and time-delay are changed respectively to discuss performance of CMT. It is concluded that relative differences between lossrate of paths, the size of rbuf and end-to-end time delay all have impact to the performance of retransmission policies.

Published in:

Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on

Date of Conference:

23-25 Sept. 2011