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A relay channel with an unlimited lookahead at the relay is introduced. General upper and lower bounds on the capacity of this channel are established. These bounds coincide for the degraded case. For the general additive white Gaussian noise version of this channel, the two bounds coincide for a range of channel parameters, leading to a partial capacity result.
This paper characterizes the capacity of a class of modulo additive noise relay channels, in which the relay observes a corrupted version of the noise and has a separate channel to the destination. The capacity is shown to be strictly below the cut-set bound in general and achievable using a quantize-and-forward strategy at the relay. This result confirms a conjecture by Ahlswede and Han about the...
In this paper, we propose an achievable rate region for discrete memoryless interference channels with conferencing at the transmitter side. We employ superposition block Markov encoding, combined with simultaneous superposition coding, dirty paper coding, and random binning to obtain the achievable rate region. We show that, under respective conditions, the proposed achievable region reduces to Han...
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