Mackay-Neal Codes For High-Speed Wireless And Free-Space Optical Links
summary
Rate-adaptive MacKay‑Neal constructions use an outer distribution matcher plus a single protograph LDPC inner code to get variable rates at fixed blocklength, analyzed by mapping the nonlinear scheme to decoding over parallel Gaussian and binary symmetric channel components. Designs use EXIT and quantized density evolution, compute input/output weight growth to predict error floors, and simulate with an inverse arithmetic coding DM. Results show a single protograph operating within 1 dB from the Shannon limit over many rates for block length 9,000 bits.
AI-written summary · about
chapters (10)
- 0:00High-throughput coding schemes
- 3:03Wireless and optical links
- 7:05Code design constraints
- 10:49MacKay-Neal codes
- 14:22Decoding strategies
- 17:18Density evolution analysis
- 21:16Weight enumerator analysis
- 23:42Protograph optimization
- 26:32Performance results
- 27:42Q&A
related talks
44mTutorial on List Decodable Coding Schemes and Interactive Communication in Networks (Part 2 of 2)
27mList Recovery and Local Decoding of Expander Codes
31mMulti-version Coding and Shared Memory Emulation
57mCoding for Interactive Communication
28mCommunication Avoiding Algorithms for Linear Algebra and Beyond
10mRevisiting Network Coding for Warm Blob Storage
27mComputation Over the Noisy Broadcast Channel with Malicious Parties
12mCodedBulk: Inter-Datacenter Bulk Transfers using Network Coding