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Secrecy Analysis for Full-Duplex Jamming-Aided Uplink NOMA System

Kaiwei Jiang, Haiping Wang
2021 Procedia Computer Science  
Full duplex (FD) is one of the most attractive technologies in enhancing spectrum efficiency for potentially doubling the system throughput.  ...  We then further investigate the problem of optimal power allocation to maximize overall secrecy performance.  ...  Acknowledgements This work was supported by the General Scientific Research Projects of Zhejiang Education Department (Grant No. Y202044751).  ... 
doi:10.1016/j.procs.2021.04.041 fatcat:66ggtcghxrc7lj3xguc4myfsfi

Half-Duplex Base Station with Adaptive Scheduling of the in-Band Uplink-Receptions and Downlink-Transmissions [article]

Mohsen Mohammadkhani Razlighi, Nikola Zlatanov
2019 arXiv   pre-print
Furthermore, we propose optimal adaptive scheduling of the in-band uplink-receptions and downlink-transmissions of the BS such that the uplink-downlink rate/throughput region is maximized and the outage  ...  the diversity gain of both the uplink and downlink channels.  ...  Adaptive-Power Allocation In this subsection, we assume that U1 and BS can adapt their transmit powers, P 1 (i) and P B (i), in each time slot in order to maximize the boundary line of the uplink-downlink  ... 
arXiv:1701.05275v2 fatcat:a4dalgqj2rgwjihaui5yqfdbsu

Performance of a UMTS uplink MIMO scheme

E. Tiirola, J. Ylitalo
2003 2003 IEEE 58th Vehicular Technology Conference. VTC 2003-Fall (IEEE Cat. No.03CH37484)  
In this study uplink (UL) performance was studied in the 3 rd generation UMTS (Universal Mobile Telecommunications System) system assuming different SIMO/MIMO (Single/Multiple Input Multiple Output) approaches  ...  Results of the performance evaluation demonstrate that receive diversity is a dominant factor in improving uplink capacity and coverage.  ...  In FDD (Frequency-Division Duplex) systems this requires a reference channel in the uplink and a feedback channel in the downlink.  ... 
doi:10.1109/vetecf.2003.1285099 fatcat:fhingox6pffmdpdtjvdm3ydfwi

Magneto-Inductive Powering and Uplink of In-Body Microsensors: Feasibility and High-Density Effects [article]

Gregor Dumphart, Bertold Ian Bitachon, Armin Wittneben
2019 arXiv   pre-print
This paper studies magnetic induction for wireless powering and the data uplink of microsensors, in particular for future medical in-body applications.  ...  A 275 um coil at the sensor allows for 1 Mbit/s uplink rate. Moreover, we study resonant sensor nodes in dense swarms, a key aspect of envisioned biomedical applications.  ...  matching adaptation, downlink at the design frequency f D and flat uplink power allocation over the 3 dB-bandwidth of the external coil.  ... 
arXiv:1902.03989v1 fatcat:ugxqgqk6avbdtbjo5475lfogqm

Towards Systems Beyond 3G Based on Adaptive OFDMA Transmission

Mikael Sternad, Tommy Svensson, Tony Ottosson, Anders Ahlen, Arne Svensson, Anna Brunstrom
2007 Proceedings of the IEEE  
We provide a systematic overview of the design problems, such as the dimensioning of the allocated time-frequency resources, the influence of duplexing schemes, adaptation control issues for downlinks  ...  | High data rates, high spectral efficiency, flexibility, and low delays over the air interface will be important features in next-generation wireless systems.  ...  Viberg, and W. Wang, who have contributed to the results reported in this paper. They also would like to acknowledge the contributions of their colleagues.  ... 
doi:10.1109/jproc.2007.907119 fatcat:2vkhh2slrvcshptvlant6o76yu

Joint Beamforming and Interference Cancellation in MmWave Wideband Full-Duplex Systems [article]

Elyes Balti, Brian L. Evans
2021 arXiv   pre-print
In this context, we consider a cellular system wherein uplink and downlink users independently communicate with FD base station.  ...  Full-duplex (FD) systems have the capability to transmit and receive at the same time in the same frequency band.  ...  In other terms, we need to dedicate a careful attention on how to design two optimal switching points that have to be primarily adaptive to the SIR level to maximize the uplink and downlink rates.  ... 
arXiv:2110.12266v1 fatcat:crzifjvhtfelbokerujooibduu

I/Q Interference in Device-to-Device Underlay Communication with Uplink Power Control

Udesh Oruthota, Olav Tirkkonen
2015 2015 IEEE 81st Vehicular Technology Conference (VTC Spring)  
The impact of I/Q imbalance is more severe for systems employing high-order modulations and high coding rates.  ...  A similar variable-rate, variable-power scheme employed under delay Quality of Service (QoS) constraints can be found in [131] .  ... 
doi:10.1109/vtcspring.2015.7145866 dblp:conf/vtc/OruthotaT15 fatcat:e7fhilzchzf45nceolgcztjvqa

Flex-NOMA: Exploiting buffer-aided relay selection for massive connectivity in the 5G uplink

Nikolaos Nomikos, Emmanouel T. Michailidis, Panagiotis Trakadas, Demosthenes Vouyioukas, Theodore Zahariadis, Ioannis Krikidis
2019 IEEE Access  
So, in this paper, we employ BA relay selection in the uplink of the NOMA networks where users and devices coexist and demand access to the wireless resources.  ...  The theoretical analysis and performance evaluation results are provided and comparisons, in terms of outage probability, average sum-rate and average delay show that flex − NOMA offers improved performance  ...  The authors in [13] examined dynamic user clustering and power allocation for both downlink and uplink NOMA by formulating a sum-throughput maximization problem.  ... 
doi:10.1109/access.2019.2926770 fatcat:gtnye4ygxvannj3xoljy7oo3c4

Relaying Strategies for Uplink in Wireless Cellular Networks [article]

Federico Librino, Michele Zorzi
2013 arXiv   pre-print
In this paper, we analyze the impact of relays on the uplink performance of FDMA cellular networks.  ...  The first goal of this work is to observe what is the impact of various relay features, such as transmission power, location and antenna pattern, when a half-duplex constraint is imposed.  ...  As to the Uplink, in [11] a mathematical derivation of the required mobile transmission power shows the benefit of uplink relaying in terms of energy saving.  ... 
arXiv:1306.6017v1 fatcat:evhetsp45ve7na7w2w63s6td34

Optimal Resource Allocation for LTE Uplink Scheduling in Smart Grid Communications

Jian Li
2013 International Journal of Wireless Communications and Mobile Computing  
An advanced smart grid network should satisfy the future demands of the electric systems in terms of reliability and latency.  ...  Optimal Resource Allocation for LTE Uplink Scheduling in Smart Grid Communications The success of the smart grid greatly depends on the advanced communication architectures.  ...  spectrum allocation, and uplink peak data rate of 50 Mb/s within a 20 MHz uplink spectrum allocation  ... 
doi:10.11648/j.wcmc.20130104.15 fatcat:4ywrwftgxbeszmstoraouqrnmq

Spectral Efficiency and Outage Performance for Hybrid D2D-Infrastructure Uplink Cooperation [article]

Ahmad Abu Al Haija, Mai Vu
2014 arXiv   pre-print
Moreover, as the received signal-to-noise ratio increases, this uplink cooperation significantly reduces overall outage probabilities and achieves the full diversity order in spite of additional outages  ...  These characteristics of the proposed uplink cooperation make it appealing for deployment in future cellular networks.  ...  In [24] , an outer bound is derived for the full-duplex scheme in [9] based on the idea of dependence balance [25] .  ... 
arXiv:1312.2169v2 fatcat:3csni7l4tjf6nec3wsbnwswfwq

Recent Advances in Acquiring Channel State Information in Cellular MIMO Systems

Gábor Fodor, László Pap, Miklós Telek
2019 Infocommunications journal  
Therefore, cellular MU-MIMO systems employ predefined pilot sequences and configure associated time, frequency, code and power resources to facilitate the acquisition of high quality CSI for data transmission  ...  Therefore, cellular MU-MIMO systems employ predefined pilot sequences and configure associated time, frequency, code and power resources to facilitate the acquisition of high quality CSI for data transmission  ...  To this end, MU-MIMO systems employing a large number of antennas typically rely on channel reciprocity and employ uplink pilots to acquire CSI at BSs.  ... 
doi:10.36244/icj.2019.3.2 fatcat:xuvq575enbb4ncbrmhp7wlxwha

Underlaid FD D2D Communications in Massive MIMO Systems via Joint Beamforming and Power Allocation [article]

Hung V. Vu, Tho Le-Ngoc
2020 arXiv   pre-print
to the half-duplex (HD) counterpart and pure cellular systems in absence of D2D.  ...  To overcome this challenge, utilizing the large uniform linear array (ULA) equipped at BSs, we propose a joint beamforming and power allocation design for average sum-rate maximization while considering  ...  In cellular networks, separate sets of carrier frequencies are allocated to the uplink and downlink transmission. The underlaid D2D services generally favors the use of uplink spectrum [1] .  ... 
arXiv:2009.09502v2 fatcat:qbadhdepa5bx5e4amcdttr2odm

Full-Duplex Non-Orthogonal Multiple Access for Next Generation Wireless Systems

Mohammadali Mohammadi, Xiaoyan Shi, Batu K. Chalise, Zhiguo Ding, Himal A. Suraweera, Caijun Zhong, John S. Thompson
2019 IEEE Communications Magazine  
We study the application of full-duplex NOMA transmission in wireless cellular, relay and cognitive radio networks, and demonstrate achievable performance gains.  ...  In this article, we study the combination of nonorthogonal multiple access (NOMA) and full-duplex operation as a promising solution to improve the capacity of next-generation wireless systems.  ...  UPLINK AND DOWNLINK FULL-DUPLEX NOMA In legacy cellular networks, number of users supported simultaneously is limited due to orthogonal resource allocation.  ... 
doi:10.1109/mcom.2019.1800578 fatcat:jv7jmjyearauneosjtqotf3rbi

Antenna Selection Based on Matching Theory for Uplink Cell-Free Millimetre Wave Massive Multiple Input Multiple Output Systems

Abdulrahman Al Ayidh, Yusuf Sambo, Sofiat Olaosebikan, Shuja Ansari, Muhammad Ali Imran
2022 Telecom  
The architecture proposed in this work solves this issue by employing a low-complexity matching technique to obtain the optimal number of antennas, chosen based on channel magnitude and by switching off  ...  Simulated results show that, despite several APs and antennas, the proposed matching approach is more energy-efficient and has lower computational complexity than state-of-the-art schemes.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/telecom3030024 fatcat:xmjbtoc7rzbazdcbke6vnhhday
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