Journal ArticleDOI
On the distribution of SINR for the MMSE MIMO receiver and performance analysis
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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
User Scheduling Schemes of DFT-based Hybrid Beamforming Multiuser Systems
TL;DR: A novel proportional fair (PF) user scheduling scheme is proposed, which updates the priority of users during the scheduling and proves that the proposed scheduling scheme not only achieves higher rate than round robin (RR) selection, but also has a significant advantage in scheduling fairness.
Book ChapterDOI
Joint Detection for Multi‐Antenna Channels
TL;DR: This research presents a new probabilistic approach to estimating the response of the immune system to laser-spot assisted, 3D image analysis that quantifies the importance of eye-tracking in the treatment of chronic pain.
Proceedings ArticleDOI
An effective power allocation scheme for MMSE MIMO channel estimation with MMSE detection
TL;DR: An effective power allocation scheme between pilot and data symbols is proposed to maximize the average lower bound of minimum post-processing signal-to-interference and noise ratio (SINR) for the MIMO system, which has equal number of transmitter and receiver antennas.
Proceedings ArticleDOI
Outage probability approximation for the wiener filter SINR in MIMO systems
TL;DR: In this paper, the first three asymptotic moments of the SNR are computed and are used to adjust gamma and generalized gamma distributions and to accurately approximate the bit error rate (BER) and its outage probability.
Journal ArticleDOI
Error Probability Analysis of a MIMO System With Noncoherent Relaying and MMSE Reception
TL;DR: This paper deals with symbol error probability (SEP) analysis of a multiple-input-multiple-output (MIMO) system with spatial multiplexing, which employs noncoherent amplify-and-forward half-duplex relays and linear minimum mean square error (MMSE) equalization at the destination.
References
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Digital Communication over Fading Channels
TL;DR: The book gives many numerical illustrations expressed in large collections of system performance curves, allowing the researchers or system designers to perform trade-off studies of the average bit error rate and symbol error rate.
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TL;DR: In this paper, a comprehensive introduction to probability theory covering laws of large numbers, central limit theorem, random walks, martingales, Markov chains, ergodic theorems, and Brownian motion is presented.
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Multiuser Detection
TL;DR: This self-contained and comprehensive book sets out the basic details of multiuser detection, starting with simple examples and progressing to state-of-the-art applications.
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Introduction to Space-Time Wireless Communications
TL;DR: This book is an accessible introduction to every fundamental aspect of space-time wireless communications and a powerful tool for improving system performance that already features in the UMTS and CDMA2000 mobile standards.