Journal ArticleDOI
On the distribution of SINR for the MMSE MIMO receiver and performance analysis
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TLDR
A Gamma distribution and a generalized Gamma distribution are proposed as approximations to the finite sample distribution of T and simulations suggest that these approximate distributions can be used to estimate accurately the probability of errors even for very small dimensions.Abstract:
This correspondence studies the statistical distribution of the signal-to-interference-plus-noise ratio (SINR) for the minimum mean-square error (MMSE) receiver in multiple-input multiple-output (MIMO) wireless communications. The channel model is assumed to be (transmit) correlated Rayleigh flat-fading with unequal powers. The SINR can be decomposed into two independent random variables: SINR=SINR/sup ZF/+T, where SINR/sup ZF/ corresponds to the SINR for a zero-forcing (ZF) receiver and has an exact Gamma distribution. This correspondence focuses on characterizing the statistical properties of T using the results from random matrix theory. First three asymptotic moments of T are derived for uncorrelated channels and channels with equicorrelations. For general correlated channels, some limiting upper bounds for the first three moments are also provided. For uncorrelated channels and correlated channels satisfying certain conditions, it is proved that T converges to a Normal random variable. A Gamma distribution and a generalized Gamma distribution are proposed as approximations to the finite sample distribution of T. Simulations suggest that these approximate distributions can be used to estimate accurately the probability of errors even for very small dimensions (e.g., two transmit antennas).read more
Citations
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Proceedings ArticleDOI
Stimulated Doppler effect on the surface of a gas bubble thermocapillary trapped by a laser in an absorbing liquid
TL;DR: In this paper, a method to measure a relative refractive index value for moving contiguous media by means of the Doppler shifts ratio measurement has been proposed, which is following from a special stimulated character of the doppler effect at experimentally realized non-equilibrium thermodynamic conditions, that are imposed by the laser light field.
Proceedings ArticleDOI
Performance analysis of vector OFDM with linear MMSE receiver
TL;DR: The performance of V-OFDM with linear Minimum Mean Square Error (MMSE) receiver is investigated and it is shown that for linear MMSE receiver, all the vector blocks (VB) in V-TODM have equal performance, this is different from V- OFDM with ML receiver, where different VBs may have different performances.
Journal ArticleDOI
Low-Complexity MIMO MMSE Receiver with Performance Enhancement via Coordinate Interleaving
TL;DR: Multiple-input multiple-output (MIMO) Minimum mean-square error (MMSE) receivers are widely adopted in the latest communication standards and reducing the complexity of these receivers while preserving the quality of the original receiver.
Posted Content
On the Distribution of SINR for MIMO Systems with Widely Linear MMSE Receivers.
TL;DR: An analytic probability density function (PDF) of the SINR is exactly derived, in terms of the confluent hypergeometric function of the second kind, for WLMMSE MIMO systems with N_t=2 and 3, while for a more general case in practice, i.e., $N_t>3, the moment generating function is resorted to to obtain an approximate but closed form PDF, under some mild conditions.
Proceedings ArticleDOI
Capacity optimization for ricean correlated MIMO channels with decorrelator receiver
S. Pandula,B.-P. Paris +1 more
TL;DR: This paper addresses the capacity optimization problem for MIMO wireless channels with a non-zero mean and transmit antenna correlation by approximating the SNR of each spatial stream by a standard noncentral Chi-squared random variable and obtaining a Taylor series approximation.
References
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