In this paper, the posterior matching scheme proposed by Shayevits and Feder is extended to the Gaussian broadcast channel with feedback, and the error probabilities and achievable rate region are derived for this coding strategy by using the iterated random function theory. A variant of the Ozarow-Leung code for the general two-user broadcast channel with feedback can be realized as a special ...

This paper considers the partial decode-and-forward (PDF) strategy for the Gaussian multiple-input multiple-output (MIMO) relay channel. Unlike for the decode-and-forward (DF) strategy or pointto-point (P2P) transmission, for which Gaussian channel inputs are known to be optimal, the input distribution that maximizes the achievable PDF rate for the Gaussian MIMO relay channel has remained unkno...

Recent results showed that the capacity of a multiple-input-multiple-output (MIMO) fading channel can be approximated by a Gaussian random variable. This Gaussian approximation method has been used to approximate MIMO capacity complementary cumulative distribution functions, or equivalently, the outage capacity, for various fading scenarios where the exact moment generating functions (thus the ...

In this paper, we study the impact of channel output feedback architectures on the capacity of two-user interference channel. For a two-user interference channel, a feedback link can exist between receivers and transmitters in 9 canonical architectures, ranging from only one feedback link to four-feedback links. We derive exact capacity region for the deterministic interference channel and cons...

In this paper we propose two novel approaches to the problem of power control for fading, additive white Gaus-sian noise channels, with side information. The objective in the rst scheme is to maximize the capacity of the channel subject to a constraint on the minimum capacity at any given state of the channel. In this scheme we assume perfect knowledge of the channel state. In the second part o...