TY - GEN
T1 - A Measurement study on multi-path TCP with multiple cellular carriers on high speed rails
AU - Li, Li
AU - Xu, Ke
AU - Li, Tong
AU - Zheng, Kai
AU - Peng, Chunyi
AU - Wang, Dan
AU - Wang, Xiangxiang
AU - Shen, Meng
AU - Mijumbi, Rashid
N1 - Publisher Copyright:
© 2018 Association for Computing Machinery.
PY - 2018/8/7
Y1 - 2018/8/7
N2 - Recent advances in high speed rails (HSRs) are propelling the need for acceptable network service in high speed mobility environments. However, previous studies show that the performance of traditional single-path transmission degrades significantly during high speed mobility due to frequent handoff. Multi-path transmission with multiple carriers is a promising way to enhance the performance, because at any time, there is possibly at least one path not suffering a handoff. In this paper, for the first time, we measure multi-path TCP (MPTCP) with two cellular carriers on HSRs with a peak speed of 310km/h. We find a significant difference in handoff time between the two carriers. Moreover, we observe that MPTCP can provide much better performance than TCP in the poorer of the two paths. This indicates that MPTCP's robustness to handoff is much higher than TCP's. However, the efficiency of MPTCP is far from satisfactory. MPTCP performs worse than TCP in the better path most of the time. We find that the low efficiency can be attributed to poor adaptability to frequent handoff by MPTCP's key operations in sub-flow establishment, congestion control and scheduling. Finally, we discuss possible directions for improving MPTCP for such scenarios.
AB - Recent advances in high speed rails (HSRs) are propelling the need for acceptable network service in high speed mobility environments. However, previous studies show that the performance of traditional single-path transmission degrades significantly during high speed mobility due to frequent handoff. Multi-path transmission with multiple carriers is a promising way to enhance the performance, because at any time, there is possibly at least one path not suffering a handoff. In this paper, for the first time, we measure multi-path TCP (MPTCP) with two cellular carriers on HSRs with a peak speed of 310km/h. We find a significant difference in handoff time between the two carriers. Moreover, we observe that MPTCP can provide much better performance than TCP in the poorer of the two paths. This indicates that MPTCP's robustness to handoff is much higher than TCP's. However, the efficiency of MPTCP is far from satisfactory. MPTCP performs worse than TCP in the better path most of the time. We find that the low efficiency can be attributed to poor adaptability to frequent handoff by MPTCP's key operations in sub-flow establishment, congestion control and scheduling. Finally, we discuss possible directions for improving MPTCP for such scenarios.
KW - Cellular Networks
KW - High Speed Rails
KW - Measurement
KW - Multi-path TCP
UR - http://www.scopus.com/inward/record.url?scp=85056417095&partnerID=8YFLogxK
U2 - 10.1145/3230543.3230556
DO - 10.1145/3230543.3230556
M3 - Conference contribution
AN - SCOPUS:85056417095
T3 - SIGCOMM 2018 - Proceedings of the 2018 Conference of the ACM Special Interest Group on Data Communication
SP - 161
EP - 175
BT - SIGCOMM 2018 - Proceedings of the 2018 Conference of the ACM Special Interest Group on Data Communication
PB - Association for Computing Machinery, Inc
T2 - 2018 Conference of the ACM Special Interest Group on Data Communication, ACM SIGCOMM 2018
Y2 - 20 August 2018 through 25 August 2018
ER -