On the sum rate of ZF detectors in correlated K fading MIMO channels
Paper i proceeding, 2011
This paper presents a detailed sum rate investigation of Zero-Forcing (ZF) detectors over composite multiple-input multiple-output (MIMO) channels. To this end, we consider the generic K distribution (Rayleigh/gamma distribution) to model the composite fading fluctuations and also assume the general case of semi-correlated small-scale fading. Novel exact analytical expressions are derived for the achievable sum rate followed by asymptotic expressions in the low Signal-to-Noise ratio (SNR) regime. In parallel, new, closed-form upper and lower bounds on the sum rate are derived that remain tight for all SNRs. The theoretical analysis is validated via a set of Monte-Carlo simulations.
Författare
Michail Matthaiou
Chalmers, Signaler och system, Signalbehandling och medicinsk teknik
N. D. Chatzidiamantis
Aristotle University of Thessaloniki
George K. Karagiannidis
Aristotle University of Thessaloniki
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
15206149 (ISSN)
3244-3247 5946713978-1-4577-0539-7 (ISBN)
Styrkeområden
Informations- och kommunikationsteknik
Ämneskategorier (SSIF 2011)
Elektroteknik och elektronik
DOI
10.1109/ICASSP.2011.5946713
ISBN
978-1-4577-0539-7