On bufferbloat and delay analysis of multipath TCP in wireless networks

With the rapid deployment of cellular net-works, modern mobile devices are now equipped with at least two interfaces (WiFi and 3G/4G). As multi-path TCP (MPTCP) has been standardized by the IETF, mobile users running MPTCP can access the Internet via multiple interfaces simultaneously to provide robust data transport and better throughput. However, as cellular networks exhibit large RTTs compared to WiFi, for small data transfers, the delayed startup of additional flows in the current MPTCP design can limit the use of MPTCP. For large data transfers, when exploiting both the WiFi and cellular networks, the inflated and varying RTTs of the cellular flow together with the small and stable RTTs of the WiFi flow can lead to performance degradation. In this paper, we seek to investigate the causes of MPTCP performance issues in wireless environments and will provide analyses and a solution for better performance.

[1]  Mark Handley,et al.  TCP Extensions for Multipath Operation with Multiple Addresses , 2020, RFC.

[2]  Mark Handley,et al.  Coupled Congestion Control for Multipath Transport Protocols , 2011, RFC.

[3]  Mark Handley,et al.  Design, Implementation and Evaluation of Congestion Control for Multipath TCP , 2011, NSDI.

[4]  Mark Allman,et al.  Comments on bufferbloat , 2013, CCRV.

[5]  Vern Paxson,et al.  Computing TCP's Retransmission Timer , 2000, RFC.

[6]  Marc Necker,et al.  The Sensitivity of TCP to Sudden Delay Variations in Mobile Networks , 2004, NETWORKING.

[7]  Sally Floyd.  Limited Slow-Start for TCP with Large Congestion Windows , 2004, RFC.

[8]  Guido Appenzeller,et al.  Sizing router buffers , 2004, SIGCOMM '04.

[9]  Robert T. Braden,et al.  Requirements for Internet Hosts - Communication Layers , 1989, RFC.

[10]  Damon Wischik,et al.  RFC 6356, Coupled Congestion Control for Multipath Transport Protocols , 2011 .

[11]  Injong Rhee,et al.  Tackling bufferbloat in 3G/4G networks , 2012, Internet Measurement Conference.

[12]  Van Jacobson,et al.  Controlling queue delay , 2012, Commun. ACM.

[13]  T. V. Lakshman,et al.  The performance of TCP/IP for networks with high bandwidth-delay products and random loss , 1997, TNET.

[14]  J Gettys,et al.  Bufferbloat: Dark Buffers in the Internet , 2011, IEEE Internet Computing.

[15]  Mark Handley,et al.  How Hard Can It Be? Designing and Implementing a Deployable Multipath TCP , 2012, NSDI.

[16]  Miroslav Popovic,et al.  MPTCP Is Not Pareto-Optimal: Performance Issues and a Possible Solution , 2013, IEEE/ACM Transactions on Networking.

[17]  Erich M. Nahum,et al.  A measurement-based study of MultiPath TCP performance over wireless networks , 2013, Internet Measurement Conference.

[18]  Donald F. Towsley,et al.  Path Selection and Multipath Congestion Control , 2007, IEEE INFOCOM 2007 - 26th IEEE International Conference on Computer Communications.

[19]  Nick McKeown,et al.  Experimental study of router buffer sizing , 2008, IMC '08.

[20]  Olivier Bonaventure,et al.  On the benefits of applying experimental design to improve multipath TCP , 2013, CoNEXT.