The Capacity Region of a Product of Two Unmatched Physically Degraded Gaussian Broadcast Channels With Three Individual Messages and a Common Message

作者：Gohary Ramy H^*; Davidson Timothy N

来源：IEEE Transactions on Information Theory, 2013, 59(1): 76-103.

DOI：10.1109/TIT.2012.2219172

• Broadcast channels with physically degraded components
• entropy power inequality
• geometric programming
• Karush-Kuhn-Tucker (KKT) conditions
• relaxation
• superposition coding (SPC)

This paper considers a Gaussian broadcast channel with two unmatched degraded components, three individual messages, and a common message that is intended for all three receivers. It is shown that for this channel, superposition coding with Gaussian signalling is sufficient to achieve every point in the capacity region.

• 出版日期2013-1