A new BBR with moderate delivery rate

BBR has been proposed as congestion-based congestion control by Google. It was originally designed to operate around optimal operating point where maximum throughput is obtained without incurring increase of roundtrip delay. In this paper, with simple analysis and detailed simulation results, we show that BBR increases its delivery rate even though BBR flows sharing the same bottleneck link fully utilize available bandwidth. From simple analysis results, we propose a new BBR delivery rate calculation algorithm which regulates delivery rate moderately, BMR. Our simulation results show that our proposed BMR operates around the optimal operating point.