. Author manuscript; available in PMC: 2021 Mar 18.
Published in final edited form as: IEEE Trans Inf Theory. 2018 Aug 16;66(8):5003–5021. doi: 10.1109/tit.2020.2971991
Personal use is permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information.