# A Single-Rate Multicast Congestion Control (SRMCC) Mechanism in Information-Centric Networking
## 4 Rate Adaptation
### Rate Selection Strategy
In summary, SRMCC not only performs better than other classic multicast congestion control mechanisms in terms of other indicators, but it also reduces overhead. Therefore, the proposed SRMCC is effective. ## 6 Conclusions

In this paper, a single-rate multicast congestion control mechanism called SRMCC was proposed for ICN. It can adaptively increase or decrease rates when the network is underutilized or about to become congested. To this end, we designed the format of MCC messages, a router-assisted awareness of the network congestion state, MCC message transmission and aggregation mechanism. In order to adjust the rate reasonably, we introduced a rate selection factor. Moreover, we innovatively proposed a fair shared rate estimation method to achieve protocol fairness. The simulation results demonstrate the significant advantages of the proposal in this paper over other mechanisms in throughput, total bandwidth utilization, packet loss rate, and overhead. In addition, our proposal maintains protocol fairness and improves TCP friendliness. In the future, important issues, such as how to extend this mechanism to scenarios with variable access bandwidth, such as wireless networks, will be explored. In addition, we will further explore the combination of a multicast congestion control mechanism and reliable multicast protocol to provide better transmission performance. Conceptualization, Y.D., H.N. and X.Z. ; methodology, Y.D., H.N. and X.Z. ; software, Y.D. ; writing--original draft preparation, Y.D. ; writing--review and editing, Y.D., H.N., X.Z. and X.W. ; supervision, X.Z. ; project administration, X.Z. ; funding acquisition, H.N. All authors have read and agreed to the published version of the manuscript. This work was funded by Strategic Leadership Project of Chinese Academy of Sciences: SEANET Technology Standardization Research System Development (Project No. XDC020/0100). Data Availability Statement: Data sharing not applicable. We would like to express our gratitude to [PERSON], [PERSON], and [PERSON] for their meaningful support of this work. The authors declare no conflict of interest. ## References

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