A 1070 pJ/b 169 Mb/s Quad-core Digital Baseband SoC for Distributed and Cooperative Massive MIMO in 28 nm FD-SOI
- Resource Type
- Authors
- Liang Liu; Ove Edfors; Farhana Sheikh; Hemanth Prabhu
- Source
- VLSI Circuits
- Subject
- Very-large-scale integration
Multi-core processor
Computer science
business.industry
Synchronization (computer science)
MIMO
Baseband
Silicon on insulator
business
Energy (signal processing)
Computer hardware
Vector processor
- Language
A 2.2 mm2 full digital baseband SoC with four heterogeneous cores for 128-node 8-users distributed massive MIMO is presented. Two specialized DSPs perform rapid over-the-air synchronization within 0.1ms. A highly optimized 8-complex lane MIMO vector processor provides 4x hardware efficiency improvement over general-purpose processors. Circuit optimizations and the use of body-bias result in 1070 pJ/b measured energy at 169 Mb/s detection rate.