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Experimental Evaluation of TCP Performance over 10Gb/s Passive Optical Networks (XG-PON)


Jerome Arokkiam, Xiuchao Wu, Ken Brown, Cormac J. Sreenan

Publication Type: 
Refereed Conference Meeting Proceeding
XG-PON is the next-generation standard for passive optical networks operating at 10Gb/s and TCP is the dominant transport protocol of the Internet. In this paper, we present the first performance evaluation of TCP over XG-PON, considering efficiency, fairness, responsiveness, and convergence. The impact of XG-PON’s large delay-bandwidth product and asymmetric bandwidth provision are assessed, together with the dynamic bandwidth allocation mechanism. Our state-of-the-art NS3 simulation uses real implementations of three TCP variants (Reno, CUBIC and H-TCP) from the Network Simulation Cradle. Our results highlight several issues that arise for TCP over XG-PON, and emphasise the need for improved awareness of medium access control and scheduling in the context of specific TCP congestion control behaviour.
Conference Name: 
IEEE Globecom 2014
Global Communications Conference (GLOBECOM), 2014 IEEE
Digital Object Identifer (DOI): 
Publication Date: 
Conference Location: 
United States of America
Research Group: 
National University of Ireland, Cork (UCC)
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