nanorq

nanorq is a compact, performant implementation of the raptorq fountain code capable of reaching multi-gigabit speeds on a single core.

API

• High-level API nanorq.h abstracts allocation, alignment, and I/O handling from the user.
• Low-level API nanorq_core.h provides more flexibility and can be used without any libc dependency¹, but requires more integration from the user.

Performance²

Use cases

• firmware deployment / software updates
• video streaming
• large data transfers across high latency links

Helper Modules

Tunable Sparse Network Coding (TSNC)

A helper module under tsnc/ that implements block-based and sliding window network coding, leveraging the optimized primitives used for nanorq.

Some examples are provided:

• Blockchain gossip propagation: Accelerating block synchronization across peer-to-peer gossip networks.
• Multipath recoding: Re-encoding packets at intermediate network hops without full block decoding to maximize throughput.
• Real-time continuous streaming: Utilizing a sliding window mechanism to recover missing stream data with minimal overhead and latency.

Footnotes

1. When compiled with NDEBUG. Test suite requires stdlib. ↩

2. Build autodetects and optimizes for the host CPU architecture (using -march=native). ↩