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A Novel Channel Estimation Technique in MIMO-OFDM Mobile Communication Systems
2020
International journal of new practices in management and engineering
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The efficiency of 4G system purely relies on the performance of receiver and is purely dependent on the synchronization of estimated instantaneous channel. ...
This kind of dynamic estimation can be done with a set of well-known sequence of coded unique bits .For a transmitter the information propagation is initiated in the form of frame bursts. ...
Fig 4 :Fig 5 : 45 Over all System Throughput of MIMO OFDM System using LS Channel Estimator SNR vs BER performance of MIMO OFDM System using LS Channel Estimator
Table 1 : 1 Comparison of parameters ...
doi:10.17762/ijnpme.v9i02.84
fatcat:sef3gghdkbeh5disfxytcl53me
OFDM and Its Wireless Applications: A Survey
2009
IEEE Transactions on Vehicular Technology
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Index Terms-Channel estimation, frequency-offset estimation, intercarrier interference (ICI), multicarrier (MC), multipleinput-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) , ...
We address basic OFDM and related modulations, as well as techniques to improve the performance of OFDM for wireless communications, including channel estimation and signal detection, time-and frequency-offset ...
Most of link adaptation approaches for MIMO or SISO-OFDM systems can directly be extended to MIMO-OFDM systems with frequency-selective channels. ...
doi:10.1109/tvt.2008.2004555
fatcat:6ix76lfrk5emhgozbhvdricj6m
Novel low-PAPR parallel FSOK transceiver design for MC-CDMA system over multipath fading channels
2011
EURASIP Journal on Wireless Communications and Networking
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Compared to the existing MC-CDMA and SC-FDMA systems, the proposed system exhibits significant performance superiority. ...
A low peak-to-average power ratio (PAPR) transceiver using a new parallel frequency-shift orthogonal keying (FSOK) technique is proposed for the multiuser uplink multi-carrier CDMA (MC-CDMA) system over ...
The authors would like to thank the Editor and the anonymous reviewers for their helpful comments and suggestions in improving the quality of this article. ...
doi:10.1186/1687-1499-2011-144
fatcat:ef4nnonehvclhl4mcy4srlyxuq
Fuzzy MIMO detector for MC-CDMA systems with carrier frequency offset over multipath fading channels
2012
EURASIP Journal on Wireless Communications and Networking
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A multistage fuzzy minimum output energy (MOE) detector is proposed for multiple input multiple output (MIMO) multi-carrier code-division-multiple access (MC-CDMA) uplink systems with carrier frequency ...
ratio and bit error rate performances. ...
The authors also thank the Editor and anonymous reviewers for their helpful comments and suggestions in improving the quality of this article. Ted Knoy is appreciated for his editorial assistance. ...
doi:10.1186/1687-1499-2012-197
fatcat:hapm756pb5dkhihk7dvgfrgn3q
BER Enhancement of MC-CDMA through B-STTC Based STBC and STBC Based B-STTC Site Diversity Techniques
2013
Universal Journal of Communications and Network
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In this paper, balanced STTC (B-STTC) based STBC site diversity is proposed to further improve the performance of MC-CDMA system by mitigating multi-cell interference and is extended to STBC based B-STTC ...
The combination of multiple antennas and multi-carrier code division multiple access (MC-CDMA) is a strong candidate for the downlink of future mobile communications. ...
STTC became extremely popular as it can simultaneously offer coding gain with spectral efficiency and full diversity over fading channels. ...
doi:10.13189/ujcn.2013.010301
fatcat:zqhymzicfnfyjeqlzrrgmictc4
A Survey of Non-Orthogonal Multiple Access for 5G
2018
IEEE Communications Surveys and Tutorials
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Their design principles and key features will be discussed in detail, and a systematic comparison of these NOMA schemes will be summarized in terms of their spectral efficiency, system performance, receiver ...
slots with the aid of non-orthogonal resource allocation. ...
It has been shown in [119] that MIMO-NOMA performs better than MIMO-OMA in terms of its sum channel capacity (except for transmission to a single user in MIMO systems), i.e., for any rate pair achieved ...
doi:10.1109/comst.2018.2835558
fatcat:ycxmkfe3rjet7eikctqijc554m
Near-Capacity Wireless Transceivers and Cooperative Communications in the MIMO Era: Evolution of Standards, Waveform Design, and Future Perspectives
2011
Proceedings of the IEEE
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By contrast, the MIMO capacity increases linearly 14 with the number of transmit antennas, provided that the num-15 ber of receive antennas is equal to the number of transmit 16 antennas. ...
ABSTRACT | Classic Shannon theory suggests that the achiev-12 able channel capacity increases logarithmically with the trans-13 mit power. ...
In
1273 [79], a general differential modulation scheme was pre-1274 sented for both partial-diversity quasi-orthogonal space-1275 time block codes and for full-diversity quasi-orthogonal 1276 space-time ...
doi:10.1109/jproc.2011.2148150
fatcat:h5figg46rfdfngebjrbmyyekle
Interference Rejection and Management
[chapter]
2009
New Directions in Wireless Communications Research
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Send comment regarding this burden estimates or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for ...
Public Reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining ...
The performance of MC-CDMA with a single nonorthogonal interferer is very close to the case of no interference. ...
doi:10.1007/978-1-4419-0673-1_9
fatcat:fpdfqv3n3zeu7a5gjpln5dcmbi
Single-carrier frequency domain equalization
2008
IEEE Signal Processing Magazine
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On the one hand, the complexity and performance of SC-FDE systems is comparable to that of OFDM while avoiding the above mentioned drawbacks associated with multicarrier (MC) implementation. ...
In this article, we intend to provide an overview of the principles of SC-FDE with a particular focus on wireless applications and to present an up-to-date review including the latest and most relevant ...
. ■ The performance analysis of direct sequence CDMA (DS-CDMA) systems employing SC-FDE and the comparison of such systems with MC-CDMA techniques. ...
doi:10.1109/msp.2008.926657
fatcat:ttxo64yqqretnhfecgmbww7jxm
Fifty Years of MIMO Detection: The Road to Large-Scale MIMOs
2015
IEEE Communications Surveys and Tutorials
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MIMO channels and dispersive MIMO channels exhibiting memory, as well as the complex-valued versus real-valued MIMO system models. ...
The emerging massive/large-scale MIMO (LS-MIMO) systems relying on very large antenna arrays have become a hot topic of wireless communications. ...
Hamid Jafarkhani (University of California, Irvine), Prof. Arogyaswami Paulraj (Stanford University) and anonymous reviewers for their insightful comments and suggestions. ...
doi:10.1109/comst.2015.2475242
fatcat:ppgqyvdlu5bsvk34n4e3dfog2u
Timing and carrier synchronization in wireless communication systems: a survey and classification of research in the last 5 years
2016
EURASIP Journal on Wireless Communications and Networking
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Carrier synchronization is the process by which a receiver adapts the frequency and phase of its local carrier oscillator with those of the received signal. ...
Timing and carrier synchronization is a fundamental requirement for any wireless communication system to work properly. ...
In MC-CDMA systems, due to the presence of CFOs, orthogonality among the subcarriers is lost and ICI is generated. ...
doi:10.1186/s13638-016-0670-9
fatcat:xqzvzx4trrgdnbw2sde5gjoisa
Multicarrier modulation and cooperative communication in multihop cognitive radio networks
2011
IEEE wireless communications
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Therefore, MC-CDMA-CR is not discussed below. Additionally, MIMO can improve the channel capacity and performance of wireless communication systems by using space and time resources. ...
channel estimation algorithm, and so forth. ...
doi:10.1109/mwc.2011.5714024
fatcat:rj6u7r3l2zbmpologarvbbpavi
Cooperative Power-Domain NOMA Systems: An Overview
2022
Sensors
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The increased need for better data rates and more exposure to multimedia information lead to a non-orthogonal multiple access (NOMA) scheme that aims to enhance spectral efficiency and link additional ...
Recent work suggests that the NOMA scheme performs better when combined with suitable wireless technologies specifically by incorporating antenna diversity including massive multiple-input multiple-output ...
, maximises achievable rate Channel allocation scheme NOMA-RBC [95] Full duplex relaying Achievable throughput Improves weak user rate Extended to MU-MIMO 3.2.2. ...
doi:10.3390/s22249652
pmid:36560021
pmcid:PMC9783371
fatcat:vryae6mqorbxxlzfjw4udepaf4
Large Multiuser MIMO Detection: Algorithms and Architectures
[article]
2021
arXiv
pre-print
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2018 pre-print arXiv:1805.11514v1 fatcat:eferivku25f77gd2p5gckalhk4
Then, a family of low-complexity hard-output and soft-output detection schemes based on channel matrix puncturing targeted for large MIMO systems is proposed. ...
In this thesis, we investigate the problem of efficient data detection in large MIMO and high order MU-MIMO systems. ...
For a 4 × 4 MU-MIMO system with Nuser = 2, Fig. 8.4 shows
the corresponding FER performance with 64-QAM and uncorrelated channels. ...
arXiv:1805.11514v2
fatcat:tjjwm6eaynf3ldwttx24y7wtbq
A Systematic Review on NOMA Variants for 5G and Beyond
2021
IEEE Access
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Finally, a comparative analysis of different existing proposals is also discussed to provide deep insights to the readers. ...
Over the last few years, interference has been a major hurdle for successfully implementing various end-user applications in the fifth-generation (5G) of wireless networks. ...
In [285] , the power-efficient MISO IRS-NOMA system under quasi-degraded channels was studied. ...
doi:10.1109/access.2021.3081601
fatcat:mzmmr3km5zehhh3fnupyelfo3e
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