Maximizing Expected Achievable Rates for Block-Fading Buffer-Aided Relay Channels

Achievable data rates and power allocation for frequency-selective fading relay channels with imperfect channel estimation

In this article, we investigate the information-theoretical performance of a cooperative orthogonal frequency division multiplexing (OFDM) system with imperfect channel estimation. Assuming the deployment of training-aided channel estimators, we derive a lower bound on the achievable rate for the cooperative OFDM system with amplify-andforward relaying over frequency-selective Rayleigh fading c...

Achievable Rates and Resource Allocation Strategies for Imperfectly Known Fading Relay Channels

Achievable Rates and Optimal Resource Allocation for Imperfectly-Known Fading Relay Channels

1 In this paper, achievable rates of imperfectlyknown fading relay channels are studied. It is assumed that communication starts with the network training phase in which the receivers estimate the fading coefficients of their respective channels. In the data transmission phase, amplify-and-forward and decode-and-forward relaying schemes are considered, and the corresponding achievable rate expr...

On Achievable Rates for User Cooperation and Relay Channels

In this paper, we derive a new achievable rate region for the user cooperation channel, which exceeds the best known result for this channel [Wil83]. Since the user cooperation channel includes many other known channels as a special case, the new rate region provides an improved achievable rates for many of the special cases (discussed later). The most notable example is that of the Gaussian re...

Achievable rates for discrete memoryless relay channels with generalised feedback

This paper considers the three-node discrete memoryless relay channel with generalized feedback. In particular, two generalized feedback configurations are investigated. In the first configuration, the source is assumed to be able to actively collect feedback signals from the channel, while in the second one, the destination is assumed to be able to actively transmit feedback signals to the rel...