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Low-SNR Analysis of MIMO Weibull Fading Channels

Michail Matthaiou (Institutionen för signaler och system, Signalbehandling) ; C. J. Zhong
IEEE Communications Letters (1089-7798). Vol. 16 (2012), 5, p. 694-697.
[Artikel, refereegranskad vetenskaplig]

The capacity performance of multiple-input multiple-output (MIMO) systems in Weibull fading channels has not been properly addressed in the literature. In this paper, we consider three MIMO architectures, namely spatial-multiplexing (SM) MIMO systems with optimal and minimum mean square error (MMSE) receivers as well as orthogonal space-time block-codes (OSTBC) MIMO systems, that operate over Weibull fading channels. Since the capacity analysis at arbitrary Signal-to-Noise ratios (SNRs) is intractable, we focus on the low-SNR regime which is characterized by the minimum energy per information bit to reliably convey any positive rate and the wideband slope. For these two metrics, new closed-form expressions are derived which enable us to perform a detailed comparative study of the considered configurations and assess MIMO capacity in Weibull fading channels.

Nyckelord: Capacity, linear receivers, MIMO systems, Weibull fading, time block-codes, regime

Denna post skapades 2012-06-25. Senast ändrad 2016-08-22.
CPL Pubid: 159488


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