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(397 citation statements)

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“…Rayleigh-faded channel and 1 Coherent operation may be unfeasible for ! 1 when the noise becomes commensurate with the uncertainty in the knowledge of the precise state of the channel and the logarithmic scaling in (1) breaks down [6], [7]. For levels of practical interest, however, the premise of coherent reception is valid in a vast majority of channels and an asymptotic characterization accurately captures the behavior of the capacity at those levels.…”

confidence: 99%

“…We adhere to the widely used separable model whereby the correlation between the and entries of is 6 where and are and correlation matrices whose entries indicate the correlation between receive antennas and between transmit antennas, respectively, while denotes the th entry of a matrix. A Rayleigh-faded channel whose correlation is separable can thus be expressed as (23) with having i.i.d.…”

confidence: 99%

“…Medard in [3] examines the effect of imperfect channel knowledge on capacity, and Lapidoth and Shamai quantify the degradation in performance due to channel-state estimation errors by the receiver [4]. Pradhan et al show that the duality between source and channel coding in fact extends to the case with side-information under certain conditions [5]: this is particularly interesting given the well-known parallel between source coding and portfolio theory, which we will connect to here.…”

confidence: 95%

“…Performing nearest-neighbor decoding as described above 4 has been shown to have the effect of making the termH(k) √ P X(k) appear as an additional source of independent Gaussian noise [14]. With that, the spectral efficiency becomes [3]- [5], [7], [8] …”

confidence: 99%

“…The robustness of the capacity achieving scheme in a Gaussian flat-fading channel is studied in [4]. As for the broadcast channel, [5] considered the effect of non-ideal feedback only in the transmitter due to doppler effect.…”

confidence: 99%