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Optimal Designs for Space-Time Linear Precoders and Decoders (2001)
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| Venue: | IEEE Trans. Signal Processing |
| Citations: | 197 - 6 self |
BibTeX
@ARTICLE{Scaglione01optimaldesigns,
author = {Anna Scaglione and Petre Stoica and Sergio Barbarossa and Georgios B. Giannakis and Hemanth Sampath},
title = {Optimal Designs for Space-Time Linear Precoders and Decoders},
journal = {IEEE Trans. Signal Processing},
year = {2001},
volume = {50},
pages = {1051--1064}
}
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Abstract
In this paper we introduce a new paradigm for the design of transmitter space-time coding that we refer to as linear precoding. It 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. The scheme operates as a block transmission system in which vectors of symbols are encoded and modulated through a linear mapping operating jointly in the space and time dimension. The specific designs target minimization of the symbol mean square error and the approximate maximization of the minimum distance between symbol hypotheses, under average and peak power constraints. The solutions are shown to convert the MIMO channel with memory into a set of parallel flat fading subchannels, regardless of the design criterion, while appropriate power/bits loading on the sub-channels is the specific signature of the different designs. The proposed designs are compared in terms of various performance measures such as information rate, BER and symbol mean square error.
Keyphrases
space-time linear precoders optimal design information rate different design block transmission system minimum distance design criterion specific design target minimization frequency selective multiple-input multiple-output time dimension mimo channel symbol hypothesis specific signature new paradigm linear precoding approximate maximization peak power constraint closed form solution coding block linear mapping transmitter space-time coding symbol mean square error transmit average peak power appropriate power bit parallel flat fading subchannels various performance measure square error
