Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transceiver Design for Dual-Hop Non-regenerative MIMO-OFDM Relay Systems
  Under Channel Uncertainties   In this paper, linear transceiver design for dual-hop non-regenerative
(amplify-and-forward (AF)) MIMO-OFDM systems under channel estimation errors is
investigated. Second order moments of channel estimation errors in the two hops
are first deduced. Then based on the Bayesian framework, joint design of linear
forwarding matrix at the relay and equalizer at the destination under channel
estimation errors is proposed to minimize the total mean-square-error (MSE) of
the output signal at the destination. The optimal designs for both correlated
and uncorrelated channel estimation errors are considered. The relationship
with existing algorithms is also disclosed. Moreover, this design is extended
to the joint design involving source precoder design. Simulation results show
that the proposed design outperforms the design based on estimated channel
state information only.

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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: comp-gas
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The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: funct-an
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-ph
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex