Building Massive MIMO Baseband Processing on a Single-Node Supercomputer
summary
MegaStation implements a baseband pipeline as instruction streams on a single-node supercomputer with a composable GPU pool and GigaIO FabreX fabric, using an instruction unit, a scoreboarding-like scheduler, and a pipeline scheduler to remap frames→symbols→tasks at runtime. Evaluated on A100 GPUs, it claims up to 66.2% lower tail latency and roughly 4× higher throughput than prior vRAN setups, supports 256×128 massive MIMO, and the prototype consistently meets 1 ms frame constraints in end-to-end tests.
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chapters (7)
- 0:00Massive MIMO baseband intro
- 1:24Virtualized RAN challenges
- 4:11Single-node supercomputer arch
- 5:36Parallelism mismatch
- 8:06MegaStation design
- 11:41Experimental results
- 14:11Conclusion
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