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

Olufemi James Oyedapo 1 Baptiste Vrigneau Rodolphe Vauzelle 1 Hervé Boeglen 1
1 XLIM-SIC - SIC
Université de Poitiers, XLIM - XLIM
Abstract : 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.
Type de document :
Article dans une revue
IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers, 2014, pp.1849 - 1857. 〈10.1109/TWC.2014.2374593〉
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Contributeur : Baptiste Vrigneau <>
Soumis le : mardi 5 mai 2015 - 17:08:08
Dernière modification le : jeudi 11 janvier 2018 - 06:27:03

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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, Institute of Electrical and Electronics Engineers, 2014, pp.1849 - 1857. 〈10.1109/TWC.2014.2374593〉. 〈hal-01148940〉

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