Filters








27 Hits in 4.8 sec

A Pre-BLAST-DFE Technique for the Downlink of Frequency-Selective Fading MIMO Channels

L.-U. Choi, R.D. Murch
2004 IEEE Transactions on Communications  
In this paper, we propose a Pre-BLAST-DFE technique for the downlink of frequency selective fading multi-input multi-output (MIMO) channels to combat multiple access interference (MAI) and inter-symbol  ...  In particular, it is demonstrated that the diversity order of this technique is higher than that of the MIMO OFDM with V-BLAST and MIMO OFDM with linear transmit pre-processing.  ...  In this paper, we propose a Pre-BLAST-DFE technique for the downlink of frequency selective channels.  ... 
doi:10.1109/tcomm.2004.826249 fatcat:l2yu7uix6vfrphs2pleilyoec4

Single- and multicarrier transmission in up- and downlink scenarios with intersymbol interference: a comparison

Robert F. H. Fischer, Clemens Stierstorfer
2007 Transactions on Emerging Telecommunications Technologies  
Up-and downlink transmission over MIMO channels where the transmission paths exhibit intersymbol interference are studied.  ...  The rate regions, i.e., the region of admissible rates of the users, for these approaches are given and compared.  ...  Here we assume again the application of DFE (successive cancellation), in the context of (flat-fading) MIMO channels also known as V-BLAST [13] .  ... 
doi:10.1002/ett.1188 fatcat:qmecw57b7jazdenskq2zn2rumu

Precoding in Multiantenna and Multiuser Communications

C. Windpassinger, R.F.H. Fischer, T. Vencel, J.B. Huber
2004 IEEE Transactions on Wireless Communications  
It is shown that the capacity of the underlying MIMO channel can be utilized asymptotically by means of non-linear precoding.  ...  A number of aspects of practical importance are studied. Loading, i.e., the optimum distribution of transmit power and rate is discussed in detail.  ...  The interchip interference caused by frequency-selective fading results in non-orthogonal effective spreading sequences s k [ν].  ... 
doi:10.1109/twc.2004.830852 fatcat:s7bni5b4azadxhlvqnrgzjfaii

Advances in MIMO Techniques for Mobile Communications—A Survey

Farhan Khalid, Joachim Speidel
2010 International Journal of Communications, Network and System Sciences  
A detailed review of various MU-MIMO uplink and downlink techniques then follows, clarifying the underlying concepts and emphasizing the importance of MU-MIMO in cellular communication systems.  ...  The Figure 1. V-BLAST system block diagram [31].  ...  In [44] , the optimal MIMO precoder designs for frequency-flat and frequency-selective fading channels are presented, assuming partial CSI at the transmitter consisting of transmit and receive correlation  ... 
doi:10.4236/ijcns.2010.33031 fatcat:wyhhqdwt5nablim2rvqij2osju

Massive MIMO Techniques for 5G and Beyond—Opportunities and Challenges

David Borges, Paulo Montezuma, Rui Dinis, Marko Beko
2021 Electronics  
The purpose of this article is to describe the most acknowledged transmission techniques for massive MIMO systems and to analyze some of the most promising ones and identify existing problems and limitations  ...  State-of-the-art work considers massive Multiple-Input Multiple-Output (massive MIMO) as the key technology for 5G and beyond.  ...  of MIMO/BLAST techniques to OFDM schemes is simple, perhaps with additional pre-processing and/or employing adaptive loading schemes.  ... 
doi:10.3390/electronics10141667 fatcat:3qgwtcfctvesbhmktr3goxxk4y

A Survey on MIMO Transmission with Discrete Input Signals: Technical Challenges, Advances, and Future Trends [article]

Yongpeng Wu, Chengshan Xiao, Zhi Ding, Xiqi Gao, Shi Jin
2017 arXiv   pre-print
Then, we provide a survey of the transmission designs with discrete input signals for multiuser MIMO scenarios, including MIMO uplink transmission, MIMO downlink transmission, MIMO interference channel  ...  , and MIMO wiretap channel.  ...  Moreover, the ST-LCFE design is extended to frequency-selective MIMO-OFDM and time-selective fading channels in [191] .  ... 
arXiv:1704.07611v1 fatcat:4gep4gnbefdytjdggniocdora4

Smart antenna technologies for future wireless systems: trends and challenges

A. Alexiou, M. Haardt
2004 IEEE Communications Magazine  
ACKNOWLEDGMENTS The authors would like to thank all the participants in the WG4 Smart Antenna and Related Technologies subgroup of the Wireless World Research Forum (WWRF) for sharing their thoughts on  ...  the trends in the smart antenna area during subgroup meetings and email discussions, as well as their contributions to this article.  ...  The maximum spatial diversity order of a non-frequency-selective fading MIMO channel is equal to the product of the number of receive and transmit antennas.  ... 
doi:10.1109/mcom.2004.1336725 fatcat:fvk5mgpiere2dos7zmdl65jdhy

Wireless World Research Forum

2016 IEEE Vehicular Technology Magazine  
ACKNOWLEDGMENTS The authors would like to thank all the participants in the WG4 Smart Antenna and Related Technologies subgroup of the Wireless World Research Forum (WWRF) for sharing their thoughts on  ...  the trends in the smart antenna area during subgroup meetings and email discussions, as well as their contributions to this article.  ...  The maximum spatial diversity order of a non-frequency-selective fading MIMO channel is equal to the product of the number of receive and transmit antennas.  ... 
doi:10.1109/mvt.2016.2613438 fatcat:sirnhfnbr5hy7amlo6i7njkqdq

Wireless World Research Forum

2013 IEEE Vehicular Technology Magazine  
ACKNOWLEDGMENTS The authors would like to thank all the participants in the WG4 Smart Antenna and Related Technologies subgroup of the Wireless World Research Forum (WWRF) for sharing their thoughts on  ...  the trends in the smart antenna area during subgroup meetings and email discussions, as well as their contributions to this article.  ...  The maximum spatial diversity order of a non-frequency-selective fading MIMO channel is equal to the product of the number of receive and transmit antennas.  ... 
doi:10.1109/mvt.2013.2264782 fatcat:d2zhg3zqhfe7lo3wspnydg4miy

Introduction of Frequency-Domain Signal Processing to Broadband Single-Carrier Transmissions in a Wireless Channel

Fumiyuki ADACHI, Hiromichi TOMEBA, Kazuki TAKEDA
2009 IEICE transactions on communications  
Since the SC signal spectrum is spread over the entire signal bandwidth, FDE can take advantage of channel frequency-selectivity and achieve the frequency diversity gain.  ...  Multi-input/multioutput (MIMO) is an important technique to improve the transmission performance. Some of the studies on MIMO/SC with FDE are introduced.  ...  Frequency-Domain Pre-Equalization The use of FDE at a receiver (called FDE reception) is an effective technique for improving the SC signal transmission performance in a frequency-selective channel [11  ... 
doi:10.1587/transcom.e92.b.2789 fatcat:f2t4rucw7fbcbp2phg4lrp7bsq

Adaptive MMSE multiuser receivers in MIMO OFDM wireless communication

Titus Eneh, Predrag Rapajic, Kwashie Anang
2010 2010 IEEE 12th International Conference on Communication Technology  
A MMSE MUD provides robustness and mobility in a time variable frequency selective multi-path fading channel, improves the bit error rate performance and therefore enhances channel capacity of a multi-cellular  ...  In the implementation, AMUD MIMO OFDM, provides robustness and mobility in a time variable frequency selective multipath fading channel; it improves the bit error rate performance and therefore enhances  ...  In OFDM, computationally-efficient Fast Fourier Transform [10] is used to transmit data in parallel over a large number of orthogonal subcarriers which are maintained even in frequency selective fading  ... 
doi:10.1109/icct.2010.5688544 fatcat:e2jbc2q7ifgj3djdftz5slahlm

Real-Time Signal Processing for Multiantenna Systems: Algorithms, Optimization, and Implementation on an Experimental Test-Bed

Thomas Haustein, Andreas Forck, Holger Gäbler, Volker Jungnickel, Stefan Schiffermüller
2006 EURASIP Journal on Advances in Signal Processing  
The experimental results clearly show the feasibility of real-time high data rate MIMO techniques with state-of-the-art hardware and that more sophisticated baseband signal processing will be an essential  ...  We discuss the reasons and prerequisites for real-time capable MIMO transmission systems which may allow channel adaptive transmission to increase link stability and data throughput.  ...  MIMO-OFDM for frequency-selective channels The extension of the well-studied flat-fading algorithms towards frequency-selective channels offers equalization of the MIMO channel in the time or frequency  ... 
doi:10.1155/asp/2006/27573 fatcat:z3dqv5tmgjb5dhcugdyngtyz6m

Minimum SER Block Precoding and Equalization for Frequency-Selective Fading Channels

Lingyang Song, R.C. de Lamare, A. Hjorungnes, A.G. Burr, M.R. Bhatnagar
2010 IEEE Transactions on Vehicular Technology  
In this paper, we study the joint transmitter and receiver design problem over frequency-selective fading channels.  ...  Index Terms Frequency-selective fading channels, block transmission systems, Gaussian approximation, precoding.  ...  SER Performance of the precoded A-ML-DFE over frequency-selective fading channels (QPSK, L = 5, Q = 128, L f = 15, and L b = L − 1 = 4).  ... 
doi:10.1109/tvt.2009.2035510 fatcat:4nu4a76t3negdfjs4nl4c4q2q4

Performance Analysis of a Pre-BLAST-DFE Technique for MISO Channels With Decentralized Receivers

Patrick Amihood, Elias Masry, Laurence B. Milstein, John G. Proakis
2007 IEEE Transactions on Communications  
The performance of a pre-Bell Laboratories Layered Space-Time Architecture (BLAST)-decision feedback equalization (DFE) technique with Tomlinson-Harashima precoding and decentralized receivers, operating  ...  We then generalize this result to MISO frequency-selective fading channels with decentralized receivers by using the QR decomposition technique.  ...  Fig. 2 . 2 System model for a pre-BLAST-DFE technique operating over a MISO frequency-selective fading channel with decentralized receivers. III.  ... 
doi:10.1109/tcomm.2007.900613 fatcat:e5s4zqtvyva3vcxbskdn4qvdl4

2020 Index IEEE Transactions on Vehicular Technology Vol. 69

2020 IEEE Transactions on Vehicular Technology  
+ Check author entry for coauthors ami-mFading Channels With Integer and Non-Integerm; TVT March 2020 2785-2801 Hoang, T.M., Tran, X.N., Nguyen, B.C., and Dung, L.T., On the Performance of MIMO Full-Duplex  ...  Impact of Molecular Re-Radiation on the MIMO Capacity in High-Frequency Bands; TVT Dec. 2020 15458-15471 Hoseinnezhad, R., see Yi, W., TVT April 2020 4104-4118 Hossain, E., see Guruacharya, S., TVT  ...  Delay Violation Probability and Effective Rate of Downlink NOMA Over a-n Fading Channels.  ... 
doi:10.1109/tvt.2021.3055470 fatcat:536l4pgnufhixneoa3a3dibdma
« Previous Showing results 1 — 15 out of 27 results