Learn More
The interference channel with degraded message sets (IC-DMS) refers to a communication model in which two senders attempt to communicate with their respective receivers simultaneously through a common medium, and one of the senders has complete and a priori (non-causal) knowledge about the message being transmitted by the other. A coding scheme that(More)
—In this paper, the interference channel with common information (ICC), in which two senders need deliver not only private messages but also certain common messages to their corresponding receivers, is investigated. An achievable rate region for such a channel is obtained by applying a superposition coding scheme that consists of successive encoding and(More)
In this paper, we consider full-duplex and half-duplex Gaussian relay channels where the noises at the relay and destination are arbitrarily correlated. We first derive the capacity upper bound and the achievable rates with three existing schemes: Decode-and-Forward (DF), Compress-and-Forward (CF), and Amplify-and-Forward (AF). We present two capacity(More)
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(More)
— We investigate the fundamental limits of broadcast channels with cognitive relays. Specifically, we develop a new coding strategy and the associated achievable rate regions for the broadcast channel with two receivers and two additional cognitive relays. The new achievable rate regions exhibit potentially higher rates than existing schemes. We also(More)
—We study a special class of the cognitive radio channel in which the receiver of the cognitive pair does not suffer interference from the primary user. This class of cognitive Z-interference channels has not been investigated before. Previously developed general encoding schemes are complex as they attempt to cope with arbitrary channel conditions and thus(More)
— In this paper, we investigate the interference channel with common information, of which the two senders need send not only the private information but also certain common information to their receivers. We study the channel indirectly via a modified channel. An achievable rate region is first obtained for the modified channel via a random coding scheme(More)