1 research outputs found
Towards a Domain Specific Solution for a New Generation of Wireless Modems
Wireless cellular System on Chip (SoC) are experiencing unprecedented demands
on data rate, latency use case variety. 5G wireless technologies require a
massive number of antennas and complex signal processing to improve bandwidth
and spectral efficiency. The Internet of Things is causing a proliferation in
the number of connected devices, and service categories, such as ultra-reliable
low latency, which will produce new use cases, such as self-driving cars,
robotic factories, and remote surgery. In addressing these challenges, we can
no longer rely on faster cores, or even more silicon. Modem software
development is becoming increasingly error prone and difficult as the
complexity of the applications and the architectures increase.
In this report we propose a Wireless Domain Specific Solution that takes a
Dataflow acceleration approach and addresses the need of the SoC to support
dataflows that change with use case and user activity, while maintaining the
Firm Real Time High Availability with low probability of Heisenbugs that is
required in cellular modems. We do this by developing a Domain Specific
Architecture that describes the requirements in a suitably abstracted dataflow
Domain Specific language. A toolchain is described that automates translation
of those requirements in an efficient and robust manner and provides formal
guarantees against Heisenbugs. The dataflow native DSA supports the toolchain
output with specialized processing, data management and control features with
high performance and low power, and recovers rapidly from dropped dataflows
while continuing to achieve the real time requirements.
This report focuses on the dataflow acceleration in the DSA and the part of
the automated toolchain that formally checks the performance and correctness of
software running on this dataflow hardware. Results are presented and a summary
of future work is given.Comment: 49 page