TY - GEN
T1 - An experimental evaluation of low latency congestion control for mmWave links
AU - Srivastava, Ashutosh
AU - Fund, Fraida
AU - Panwar, Shivendra S.
N1 - Funding Information:
This work was supported by the New York State Center for Advanced Technology in Telecommunications (CATT), NYU WIRELESS, and gifts from Cisco Systems and Futurewei. The authors would also like to acknowledge the contributions of Shreeshail Hingane and Youssef Azzam, who collected the mmWave link traces used in this research.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/7
Y1 - 2020/7
N2 - Applications that require extremely low latency are expected to be a major driver of 5G and WLAN networks that include millimeter wave (mmWave) links. However, mmWave links can experience frequent, sudden changes in link capacity due to obstructions in the signal path. These dramatic variations in link capacity cause a temporary 'bufferbloat' condition during which delay may increase by a factor of 2-10. Low latency congestion control protocols, which manage bufferbloat by minimizing queue occupancy, represent a potential solution to this problem, however their behavior over links with dramatic variations in capacity is not well understood. In this paper, we explore the behavior of two major low latency congestion control protocols, TCP BBR and TCP Prague (as part of L4S), using link traces collected over mmWave links under various conditions. Our evaluation reveals potential problems associated with use of these congestion control protocols for low latency applications over mmWave links.
AB - Applications that require extremely low latency are expected to be a major driver of 5G and WLAN networks that include millimeter wave (mmWave) links. However, mmWave links can experience frequent, sudden changes in link capacity due to obstructions in the signal path. These dramatic variations in link capacity cause a temporary 'bufferbloat' condition during which delay may increase by a factor of 2-10. Low latency congestion control protocols, which manage bufferbloat by minimizing queue occupancy, represent a potential solution to this problem, however their behavior over links with dramatic variations in capacity is not well understood. In this paper, we explore the behavior of two major low latency congestion control protocols, TCP BBR and TCP Prague (as part of L4S), using link traces collected over mmWave links under various conditions. Our evaluation reveals potential problems associated with use of these congestion control protocols for low latency applications over mmWave links.
KW - Congestion control
KW - Low latency
KW - Millimeter wave
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U2 - 10.1109/INFOCOMWKSHPS50562.2020.9162881
DO - 10.1109/INFOCOMWKSHPS50562.2020.9162881
M3 - Conference contribution
AN - SCOPUS:85091524694
T3 - IEEE INFOCOM 2020 - IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2020
SP - 352
EP - 357
BT - IEEE INFOCOM 2020 - IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE INFOCOM Conference on Computer Communications Workshops, INFOCOM WKSHPS 2020
Y2 - 6 July 2020 through 9 July 2020
ER -