Cut-off Rate for Coded Transmissions over Time-correlated Rayleigh-faded Mobile-radio Links
نویسندگان
چکیده
This paper presents new upper and lower bounds on the symmetric cut-off rate for coded Quadrature-Amplitude-Modulated (QAM) signalling over mobile radio links affected by time-correlated Rayleigh distributed flat faded phenomena. The proposed bounds assume Maximum Likelihood (ML) soft-decoding with perfect Channel-State-Information (CSI) at the receiving side and hold for any format of QAM constellations. These bounds are quickly computable and constitute an efficient means for estimating the cut-off rate when the assumption of perfect interleaving falls short. Analytical and numerical evidence of the tightness of the presented bounds is also provided for some typical mobile radio links.
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