Scalable Distributed Massive MIMO Baseband Processing

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" summary

Hydra is a distributed software BBU that cuts inter-server and inter-core communication by using FFT offload to RU and RU-configurable fronthaul packet segmentation, plus a policy to delay shuffling until the user stage. The system runs on commodity x86 servers, evaluates on three 2×16-core machines and a larger cloud cluster, and supports 150×32 massive MIMO with three servers (four times larger than prior work) and 256×32 with 18 servers, achieving the claimed scalability.

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" chapters (10)

1. 0:00Introduction to 5G massive MIMO
2. 1:02Massive MIMO architecture
3. 2:35Scalability challenges
4. 4:04Introducing Hydra
5. 5:58The processing pipeline
6. 6:55Communication bottlenecks
7. 9:02Optimizing front-hall delivery
8. 10:42Pipeline processing strategy
9. 13:40Evaluation and performance
10. 15:41Conclusion

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