The K-User DM Broadcast Channel with Two Groupcast Messages: Achievable Rate Regions and the Combination Network as a Case Study

27 Jan 2020 Salman Mohamed Varanasi Mahesh K.

A novel class of achievable rate regions is obtained for the K-receiver broadcast channel with two groupcast messages. The associated achievability schemes are parameterized by an expansion of the message set which then determines how random coding techniques are employed, which include generalized versions of {\em up-set} message-splitting, the generation of possibly multiple auxiliary codebooks for certain compositions of split messages using superposition coding, partial interference decoding at all receivers, and joint unique and non-unique decoding... (read more)

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