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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Bit Error Rate Performance of MIMO MMSE
Li Hong,Ana Garcia Armada +1 more
TL;DR: In this article, the average bit error rate (BER) of MIMO systems in transmit-correlated Rayleigh flat-fading channels was analyzed and closed-form formulations for the average BER were derived.
Journal ArticleDOI
Performance of a Concurrent Link SDMA MAC Under Practical PHY Operating Conditions
TL;DR: The performance of a system that incorporates elements 1-4 of the SDMA-MAC concept is presented and compared against the baseline system, showing an improvement of up to five times in the overall network sum throughput.
Proceedings ArticleDOI
GFDM-Based Cooperative Relaying Networks with Wireless Energy Harvesting
Dick Carrillo Melgarejo,Jules M. Moualeu,Pedro H. J. Nardelli,Gustavo Fraidenraich,Daniel Benevides da Costa +4 more
TL;DR: The concept of wireless power transfer and wireless information transmission, which have recently received special attention for improving energy efficiency in wireless communication systems, are investigated and a GFDM waveform–an emerging candidate waveform for the 5G mobile networks and beyond–is considered.
Posted Content
A Data-Aided Channel Estimation Scheme for Decoupled Systems in Heterogeneous Networks
TL;DR: In this paper, a data-aided channel estimation scheme was proposed to exploit channel state information (CSI) from received UL data signal in decoupled HetNets where a massive multiple-input multiple-output BS and dense small cell BSs are deployed.
Proceedings ArticleDOI
Reliability and longer range for low power transmitters with on demand network MIMO
Mary Ann Weitnauer,Qiongjie Lin,Huanyu Zhang,Hongxian Tian,Sean Nowlan,Gedeon Nyengele,Sajith Mohan Chakkedath,Jim Slratigos +7 more
TL;DR: Preliminary simulation and experimental performance results and overviews the various design concerns of On Demand Network MIMO, such as synchronization, spreading, SIC performance, gateway deployment, and medium access control are presented.
References
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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.