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Article Dans Une Revue IEEE Transactions on Wireless Communications Année : 2014

Performance Analysis of Closed-Loop MIMO Precoder Based on the Probability of Minimum Distance

Olufemi James Oyedapo
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SIC
Baptiste Vrigneau
Rodolphe Vauzelle
SIC
Hervé Boeglen
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SIC

Résumé

Linear closed-loop MIMO precoders are attractive owing to their scalability. They can significantly improve the received signal via optimization of pertinent criterion. The solution of max-dmin precoding is optimal for 4-QAM as it utilizes the channel state information at the transmitter (CSIT) to minimize the system error probability making it very attractive. However, as M increases the solution which is dependent on channel angle gets complex, due to its multi-form precoder search. Motivated by a requirement to provide MIMO system evaluation parameters to upper layer protocol(s) as a function of precoder optimization criterion, we propose deriving a general expression for the probability density function (pdf) of max-dmin. Our approach applies numerical approximations to derive the system bit error rate (BER) and ergodic capacity for any values of M, nr, and nt, and with b = 2 data streams. Results show that the performance of our numerical approximation approach is close to the analytical simulation method.
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Dates et versions

hal-01148940 , version 1 (05-05-2015)

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Citer

Olufemi James Oyedapo, Baptiste Vrigneau, Rodolphe Vauzelle, Hervé Boeglen. Performance Analysis of Closed-Loop MIMO Precoder Based on the Probability of Minimum Distance. IEEE Transactions on Wireless Communications, 2014, pp.1849 - 1857. ⟨10.1109/TWC.2014.2374593⟩. ⟨hal-01148940⟩
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