A Modified TCP BBR to Enable High Fairness in High-Speed Wireless Networks
Wireless networks, especially 5G and WiFi networks, have made great strides in increasing network bandwidth and coverage over the past decades. However, the mobility and channel conditions inherent to wireless networks have the potential to impair the performance of traditional Transmission Control...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-10-01
|
| Series: | Future Internet |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1999-5903/16/11/392 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850144922412253184 |
|---|---|
| author | Jinlin Xu Wansu Pan Haibo Tan Longle Cheng Xiru Li Xiaofeng Li |
| author_facet | Jinlin Xu Wansu Pan Haibo Tan Longle Cheng Xiru Li Xiaofeng Li |
| author_sort | Jinlin Xu |
| collection | DOAJ |
| description | Wireless networks, especially 5G and WiFi networks, have made great strides in increasing network bandwidth and coverage over the past decades. However, the mobility and channel conditions inherent to wireless networks have the potential to impair the performance of traditional Transmission Control Protocol (TCP) congestion control algorithms (CCAs). Google proposed a novel TCP CCA based on Bottleneck Bandwidth and Round-Trip propagation time (BBR), which is capable of achieving high transmission rates and low latency through the estimation of the available bottleneck capacity. Nevertheless, some studies have revealed that BBR exhibits deficiencies in fairness among flows with disparate Round-Trip Times (RTTs) and also displays inter-protocol unfairness. In high-speed wireless networks, ensuring fairness is of paramount importance to guarantee equitable bandwidth allocation among diverse traffic types and to enhance overall network utilization. To address this issue, this paper proposes a BBR–Pacing Gain (BBR–PG) algorithm. By deriving the pacing rate control model, the impact of pacing gain on BBR fairness is revealed. Adjusting the pacing gain according to the RTT can improve BBR’s performance. Simulations and real network experiments have shown that the BBR–PG algorithm retains the throughput advantages of the original BBR algorithm while significantly enhancing fairness. In our simulation experiments, RTT fairness and intra-protocol fairness were improved by 50% and 46%, respectively. |
| format | Article |
| id | doaj-art-fe573bdaaf8046dc9330ed9b772c8272 |
| institution | OA Journals |
| issn | 1999-5903 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Future Internet |
| spelling | doaj-art-fe573bdaaf8046dc9330ed9b772c82722025-08-20T02:28:14ZengMDPI AGFuture Internet1999-59032024-10-01161139210.3390/fi16110392A Modified TCP BBR to Enable High Fairness in High-Speed Wireless NetworksJinlin Xu0Wansu Pan1Haibo Tan2Longle Cheng3Xiru Li4Xiaofeng Li5Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaHefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaHefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaHefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaHefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaHefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaWireless networks, especially 5G and WiFi networks, have made great strides in increasing network bandwidth and coverage over the past decades. However, the mobility and channel conditions inherent to wireless networks have the potential to impair the performance of traditional Transmission Control Protocol (TCP) congestion control algorithms (CCAs). Google proposed a novel TCP CCA based on Bottleneck Bandwidth and Round-Trip propagation time (BBR), which is capable of achieving high transmission rates and low latency through the estimation of the available bottleneck capacity. Nevertheless, some studies have revealed that BBR exhibits deficiencies in fairness among flows with disparate Round-Trip Times (RTTs) and also displays inter-protocol unfairness. In high-speed wireless networks, ensuring fairness is of paramount importance to guarantee equitable bandwidth allocation among diverse traffic types and to enhance overall network utilization. To address this issue, this paper proposes a BBR–Pacing Gain (BBR–PG) algorithm. By deriving the pacing rate control model, the impact of pacing gain on BBR fairness is revealed. Adjusting the pacing gain according to the RTT can improve BBR’s performance. Simulations and real network experiments have shown that the BBR–PG algorithm retains the throughput advantages of the original BBR algorithm while significantly enhancing fairness. In our simulation experiments, RTT fairness and intra-protocol fairness were improved by 50% and 46%, respectively.https://www.mdpi.com/1999-5903/16/11/392congestion controlBBRpacing gainhigh fairnesslow retransmission |
| spellingShingle | Jinlin Xu Wansu Pan Haibo Tan Longle Cheng Xiru Li Xiaofeng Li A Modified TCP BBR to Enable High Fairness in High-Speed Wireless Networks Future Internet congestion control BBR pacing gain high fairness low retransmission |
| title | A Modified TCP BBR to Enable High Fairness in High-Speed Wireless Networks |
| title_full | A Modified TCP BBR to Enable High Fairness in High-Speed Wireless Networks |
| title_fullStr | A Modified TCP BBR to Enable High Fairness in High-Speed Wireless Networks |
| title_full_unstemmed | A Modified TCP BBR to Enable High Fairness in High-Speed Wireless Networks |
| title_short | A Modified TCP BBR to Enable High Fairness in High-Speed Wireless Networks |
| title_sort | modified tcp bbr to enable high fairness in high speed wireless networks |
| topic | congestion control BBR pacing gain high fairness low retransmission |
| url | https://www.mdpi.com/1999-5903/16/11/392 |
| work_keys_str_mv | AT jinlinxu amodifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks AT wansupan amodifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks AT haibotan amodifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks AT longlecheng amodifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks AT xiruli amodifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks AT xiaofengli amodifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks AT jinlinxu modifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks AT wansupan modifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks AT haibotan modifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks AT longlecheng modifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks AT xiruli modifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks AT xiaofengli modifiedtcpbbrtoenablehighfairnessinhighspeedwirelessnetworks |