Journal ArticleDOI
Combined equalization and coding using precoding
G.D. Forney,M.V. Eyuboglu +1 more
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TLDR
The principal classes of classical equalization techniques are described, and Tomlinson-Harashima precoding is introduced, and it is shown that precoding combines nicely with coded modulation and with a technique known as shaping.Abstract:
Recently developed techniques that achieve the joint objectives of increasing the signaling rate so as to use the maximum possible channel bandwidth, and then using powerful equalization techniques to cope with the resulting distortion are reviewed. These techniques generalize the Tomlinson-Harashima precoding techniques, which were proposed more than 20 years ago. The principal classes of classical equalization techniques are described, and Tomlinson-Harashima precoding is introduced. It is shown that precoding combines nicely with coded modulation and with a technique known as shaping. It is also shown that, in principle, optimized combinations of coding, shaping, and precoding can achieve nearly the channel capacity of any strictly band-limited, high-SNR Gaussian channel, and in practice can approach capacity within about 3 dB or less. >read more
Citations
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Journal ArticleDOI
On the achievable throughput of a multiantenna Gaussian broadcast channel
Giuseppe Caire,Shlomo Shamai +1 more
TL;DR: Under certain mild conditions, this scheme is found to be throughput-wise asymptotically optimal for both high and low signal-to-noise ratio (SNR), and some numerical results are provided for the ergodic throughput of the simplified zero-forcing scheme in independent Rayleigh fading.
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A practical discrete multitone transceiver loading algorithm for data transmission over spectrally shaped channels
TL;DR: A finite-granularity, loading algorithm for a discrete multitone (DMT) modulation system that offers significant implementational advantages over the well-known water-pouring method and the earlier Hughes-Hartogs algorithm while typically suffering only negligible performance degradation relative to the optimal solution.
Journal ArticleDOI
Optimal designs for space-time linear precoders and decoders
TL;DR: A new paradigm for the design of transmitter space-time coding is introduced that is referred to as linear precoding, which leads to simple closed-form solutions for transmission over frequency-selective multiple-input multiple-output (MIMO) channels, which are scalable with respect to the number of antennas, size of the coding block, and transmit average/peak power.
Journal ArticleDOI
Modulation and coding for linear Gaussian channels
G.D. Forney,G. Ungerboeck +1 more
TL;DR: This paper surveys how the capacity of the linear Gaussian channel has been met during the past half century, and new capacity-approaching techniques include turbo coding and decoding, multilevel coding, and combined coding/precoding for intersymbol-interference channels.
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Adaptive equalization
TL;DR: In this article, the authors give an overview of the current state of the art in adaptive equalization and discuss the convergence and steady-state properties of least mean square (LMS) adaptation algorithms.