Congestion Control Proposal in SDN With Random Early Detection

Airaldi, Luis Lezcano; Scappini, Reinaldo José Ramón; Gramajo, Sergio D.; Bolatti, Diego

doi:10.1109/argencon49523.2020.9505361

Cited by 1 publication

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The residual bandwidth RBW is defined as the difference between the total bandwidth of the BRF flow and its utilized bandwidth, which can be mathematically expressed as follows. (11) If RBW ≥ BW i−init , then the bandwidth value BW i allocated by the newly added flow i and the bandwidth value allocated by other BRF flows can be expressed as follows.…”

Section: Bandwidth Allocation Schemementioning

confidence: 99%

“…In a software-defined network, a network engineer or administrator can adjust traffic from a central console without having to touch individual switches in the network, and a centralized SDN controller directs the switch to provide network services wherever needed, regardless of the specific connections between servers and devices. At present, there are discussions on the CC mechanism in SDN-based networks [11,12], but its CC mechanism is still based on an end-to-end mode, which cannot exploit the centralized control mode of an SDN.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

SDN-Based Congestion Control and Bandwidth Allocation Scheme in 5G Networks

Yang,

Tsai

2024

Sensors

View full text Add to dashboard Cite

5G cellular networks are already more than six times faster than 4G networks, and their packet loss rate, especially in the Internet of Vehicles (IoV), can reach 0.5% in many cases, such as when there is high-speed movement or obstacles nearby. In such high bandwidth and high packet loss network environments, traditional congestion control algorithms, such as CUBIC and bottleneck bandwidth and round-trip propagation time (BBR), have been unable to balance flow fairness and high performance, and their flow rate often takes a long time to converge. We propose a congestion control algorithm based on bottleneck routing feedback using an in-network control mode called bottleneck routing feedback (BRF). We use SDN technology (OpenFlow protocol) to collect network bandwidth information, and BRF controls the data transmission rate of the sender. By adding the bandwidth information of the bottleneck in the option field in the ACK packet, considering the flow fairness and the flow convergence rate, a bandwidth allocation scheme compatible with multiple congestion control algorithms is proposed to ensure the fairness of all flows and make them converge faster. The performance of BRF is evaluated via Mininet. The experimental results show that BRF provides higher bandwidth utilization, faster convergence rate, and fairer bandwidth allocation than existing congestion control algorithms in 5G cellular networks.

show abstract

Section: Bandwidth Allocation Schemementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%