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Quasi-Static Multiple-Antenna Fading Channels at Finite Blocklength

Yang, Wei ; Durisi, Giuseppe ; Koch, Tobias ; Polyanskiy, Yury

IEEE transactions on information theory, 2014-07, Vol.60 (7), p.4232-4265 [Periódico revisado por pares]

New York, NY: IEEE

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Título:
Quasi-Static Multiple-Antenna Fading Channels at Finite Blocklength
Autor: Yang, Wei ; Durisi, Giuseppe ; Koch, Tobias ; Polyanskiy, Yury
Assuntos: Antennas ; Applied sciences ; Asymptotic properties ; Blocking ; Channels ; Communication channels ; Convergence ; Decoding ; Detection, estimation, filtering, equalization, prediction ; Dispersion ; Dispersions ; Error probability ; Exact sciences and technology ; Fading ; Information theory ; Information, signal and communications theory ; Mathematical analysis ; MIMO ; Outages ; Probability ; Radiocommunications ; Rayleigh channels ; Receivers ; Signal and communications theory ; Signal, noise ; Systems, networks and services of telecommunications ; Telecommunications ; Telecommunications and information theory ; Transmission and modulation (techniques and equipments) ; Transmitters
É parte de: IEEE transactions on information theory, 2014-07, Vol.60 (7), p.4232-4265
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: This paper investigates the maximal achievable rate for a given blocklength and error probability over quasi-static multiple-input multiple-output fading channels, with and without channel state information at the transmitter and/or the receiver. The principal finding is that outage capacity, despite being an asymptotic quantity, is a sharp proxy for the finite-blocklength fundamental limits of slow-fading channels. Specifically, the channel dispersion is shown to be zero regardless of whether the fading realizations are available at both transmitter and receiver, at only one of them, or at neither of them. These results follow from analytically tractable converse and achievability bounds. Numerical evaluation of these bounds verifies that zero dispersion may indeed imply fast convergence to the outage capacity as the blocklength increases. In the example of a particular 1 × 2 single-input multiple-output Rician fading channel, the blocklength required to achieve 90% of capacity is about an order of magnitude smaller compared with the blocklength required for an AWGN channel with the same capacity. For this specific scenario, the coding/decoding schemes adopted in the LTE-Advanced standard are benchmarked against the finite-blocklength achievability and converse bounds.
Editor: New York, NY: IEEE
Idioma: Inglês

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Quasi-Static Multiple-Antenna Fading Channels at Finite Blocklength

Yang, Wei ; Durisi, Giuseppe ; Koch, Tobias ; Polyanskiy, Yury

New York, NY: IEEE

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