The BBR algorithm appears to be building critical mass of support in the Internet community which makes reading this research paper even more worthwhile.
When bottleneck buffers are small, loss- based congestion control misinterprets loss as a signal
of congestion, leading to low throughput. Fixing these problems requires an alternative to loss-based congestion control. Finding this alternative requires an understanding of where and how network congestion originates.
BBR: Congestion-Based Congestion Control – ACM Queue : http://queue.acm.org/detail.cfm?id=3022184