A5002904166- Advanced Wireless Communication Technologies
- Advanced MIMO Systems Optimization
- Wireless Communication Security Techniques
- Optical Wireless Communication Technologies
- Energy Harvesting in Wireless Networks
- Cooperative Communication and Network Coding
- Full-Duplex Wireless Communications
- Satellite Communication Systems
- IoT Networks and Protocols
- UAV Applications and Optimization
- PAPR reduction in OFDM
- Indoor and Outdoor Localization Technologies
- IoT and Edge/Fog Computing
- Millimeter-Wave Propagation and Modeling
- Antenna Design and Analysis
- Advanced Wireless Communication Techniques
- Wireless Communication Networks Research
- Underwater Vehicles and Communication Systems
- Age of Information Optimization
- Ocular Disorders and Treatments
- Antenna Design and Optimization
- Wireless Body Area Networks
- Radar Systems and Signal Processing
- Sparse and Compressive Sensing Techniques
- Molecular Communication and Nanonetworks
University of Manchester
2017-2025
Khalifa University of Science and Technology
2022-2025
Zhejiang Normal University
2025
Liaoning University of Traditional Chinese Medicine
2024
Changsha University of Science and Technology
2024
Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine
2023-2024
Beijing University of Chinese Medicine
2023-2024
Qilu Hospital of Shandong University
2024
Weifang People's Hospital
2024
Qingdao University
2022-2024
Non-orthogonal multiple access (NOMA) is an essential enabling technology for the fifth-generation (5G) wireless networks to meet heterogeneous demands on low latency, high reliability, massive connectivity, improved fairness, and throughput. The key idea behind NOMA serve users in same resource block, such as a time slot, subcarrier, or spreading code. principle general framework, several recently proposed 5G schemes can be viewed special cases. This survey provides overview of latest...
As the latest member of multiple access family, non-orthogonal (NOMA) has been recently proposed for 3GPP LTE and is envisioned to be an essential component 5G mobile networks. The key feature NOMA serve users at same time/frequency/ code, but with different power levels, which yields a significant spectral efficiency gain over conventional orthogonal MA. article provides systematic treatment this newly emerging technology, from its combination MIMO technologies cooperative NOMA, as well...
A key enabler for the intelligent information society of 2030, 6G networks are expected to provide performance superior 5G and satisfy emerging services applications. In this article, we present our vision what will be describe usage scenarios requirements multi-terabyte per second (Tb/s) networks. We a large-dimensional autonomous network architecture that integrates space, air, ground, underwater ubiquitous unlimited wireless connectivity. also discuss artificial intelligence (AI) machine...
Nonorthogonal multiple access (NOMA) represents a paradigm shift from conventional orthogonal multiple-access (MA) concepts and has been recognized as one of the key enabling technologies for fifth-generation mobile networks. In this paper, impact user pairing on performance two NOMA systems, i.e., with fixed power allocation (F-NOMA) cognitive-radio-inspired (CR-NOMA), is characterized. For F-NOMA, both analytical numerical results are provided to demonstrate that F-NOMA can offer larger...
In this letter, the performance of non-orthogonal multiple access (NOMA) is investigated in a cellular downlink scenario with randomly deployed users. The developed analytical results show that NOMA can achieve superior terms ergodic sum rates; however, outage depends critically on choices users' targeted data rates and allocated power. particular, wrong choice power lead to situation which user's probability always one, i.e. quality service will never be met.
Non-orthogonal multiple access (NOMA) has received considerable recent attention as a promising candidate for 5G systems. A key feature of NOMA is that users with better channel conditions have prior information about the messages other users. This knowledge fully exploited in this letter, where cooperative scheme proposed. The outage probability and diversity order achieved by are analyzed, an approach based on user pairing also proposed to reduce system complexity.
Abstract The fifth generation (5G) wireless communication networks are being deployed worldwide from 2020 and more capabilities in the process of standardized, such as mass connectivity, ultra-reliability, guaranteed low latency. However, 5G will not meet all requirements future 2030 beyond, sixth (6G) expected to provide global coverage, enhanced spectral/energy/cost efficiency, better intelligence level security, etc. To these requirements, 6G rely on new enabling technologies, i.e., air...
Driven by the rapid escalation of wireless capacity requirements imposed advanced multimedia applications (e.g., ultrahigh-definition video, virtual reality, etc.), as well dramatically increasing demand for user access required Internet Things (IoT), fifth-generation (5G) networks face challenges in terms supporting large-scale heterogeneous data traffic. Nonorthogonal multiple (NOMA), which has been recently proposed third-generation partnership projects long-term evolution (3GPP-LTE-A),...
In the fifth generation (5G) of wireless communication systems, hitherto unprecedented requirements are expected to be satisfied. As one promising techniques addressing these challenges, non-orthogonal multiple access (NOMA) has been actively investigated in recent years. contrast family conventional orthogonal (OMA) schemes, key distinguishing feature NOMA is support a higher number users than resource slots with aid allocation. This may realized by sophisticated inter-user interference...
This paper considers the application of multiple-input multiple-output (MIMO) techniques to nonorthogonal multiple access (NOMA) systems. A new design precoding and detection matrices for MIMO-NOMA is proposed its performance analyzed case with a fixed set power allocation coefficients. To further improve gap between conventional orthogonal schemes, user pairing applied NOMA impact on system characterized. More sophisticated choices coefficients are also meet various quality-of-service...
Driven by the emergence of new compute-intensive applications and vision Internet Things (IoT), it is foreseen that emerging 5G network will face an unprecedented increase in traffic volume computation demands. However, end users mostly have limited storage capacities finite processing capabilities, thus how to run on resource-constrained has recently become a natural concern. Mobile edge computing (MEC), key technology fifth generation (5G) network, can optimize mobile resources hosting...
The application of multiple-input multiple-output (MIMO) techniques to nonorthogonal multiple access (NOMA) systems is important enhance the performance gains NOMA. In this paper, a novel MIMO-NOMA framework for downlink and uplink transmission proposed by applying concept signal alignment. By using stochastic geometry, closed-form analytical results are developed facilitate evaluation randomly deployed users interferers. impact different power allocation strategies, namely fixed cognitive...
In this paper, we investigate resource allocation algorithm design for multicarrier non-orthogonal multiple access (MC-NOMA) systems employing a full-duplex (FD) base station serving half-duplex (HD) downlink and uplink users simultaneously. The proposed is obtained from the solution of non-convex optimization problem maximization weighted sum system throughput. We apply monotonic to develop an optimal joint power subcarrier policy. policy serves as performance benchmark due its high...
In this paper, a novel dynamic power allocation scheme is proposed to downlink and uplink non-orthogonal multiple access (NOMA) scenarios with two users for more flexibly meeting various quality of service requirements. The exact expressions the outage probability average rate achieved by scheme, as well their high signal-to-noise ratio approximations, are established. Compared existing works, such NOMA fixed cognitive radio inspired NOMA, can: 1) strictly guarantee performance gain over...
This letter studies the impact of relay selection (RS) on performance cooperative non-orthogonal multiple access (NOMA). In particular, a two-stage RS strategy is proposed, and analytical results are developed to demonstrate that this can achieve minimal outage probability among all possible schemes, realize maximal diversity gain. The provided simulation show NOMA with scheme outperforms based conventional max-min approach, also yield significant gain over orthogonal access.
In this paper, a wireless cooperative network is considered, in which multiple source-destination pairs communicate with each other via an energy harvesting relay. The focus of paper on the relay's strategies to distribute harvested among users and their impact system performance. Specifically, non-cooperative strategy use from i-th source as relay transmission power destination, asymptotic results show that its outage performance decays logSNR over SNR. A faster decaying rate, 1 SNR, can be...
This letter proposes a simple design of intelligent reflecting surface (IRS) assisted non-orthogonal multiple access (NOMA) downlink transmission. In particular, conventional spatial division (SDMA) is used first at the base station to generate orthogonal beams by using directions near users' channels. Then, IRS-assisted NOMA ensure that additional cell-edge users can also be served on these aligning effective channel vectors with predetermined directions. Both analytical and simulation...
Simultaneous wireless information and power transfer (SWIPT) is a promising solution to increase the lifetime of nodes hence alleviate energy bottleneck constrained networks. As an alternative conventional harvesting techniques, SWIPT relies on use radio frequency signals, expected bring some fundamental changes design communication This article focuses application advanced smart antenna technologies SWIPT, including multiple-input multiple-output relaying techniques. These have potential...
In this paper, the application of simultaneous wireless information and power transfer (SWIPT) to non-orthogonal multiple access (NOMA) networks in which users are spatially randomly located is investigated. A new cooperative SWIPT NOMA protocol proposed, near that close source act as energy harvesting relays help far users. Since locations have a significant impact on performance, three user selection schemes based distances from base station proposed. To characterize performance proposed...
Non-orthogonal multiple access (NOMA) systems have the potential to deliver higher system throughput, compared contemporary orthogonal techniques. For a linearly precoded multiple-input multiple-output (MISO) system, we study downlink sum rate maximization problem, when NOMA principles are applied. Being non-convex and intractable optimization problem,we resort approximate it with minorization-maximization algorithm (MMA), which is widely used tool in statistics. In each step of MMA, solve...
In this paper, a downlink single-cell non-orthogonal multiple access (NOMA) network with uniformly deployed users is considered and an analytical framework to evaluate its performance developed. Particularly, the of NOMA studied by assuming two types partial channel state information (CSI). For first one, which based on imperfect CSI, we present simple closed-form approximation for outage probability average sum rate, as well their high signal-to-noise ratio (SNR) expressions. second type...
In this paper, non-orthogonal multiple access (NOMA) is applied to large-scale underlay cognitive radio (CR) networks with randomly deployed users. order characterize the performance of considered network, new closed-form expressions outage probability are derived using stochastic-geometry. More importantly, by carrying out diversity analysis, insights obtained under two scenarios different power constraints: 1) fixed transmit primary transmitters (PTs), and 2) PTs being proportional that...
This paper presents a full-duplex device-to-device (D2D)-aided cooperative nonorthogonal multiple access (NOMA) scheme to improve the outage performance of NOMA-weak user in NOMA pair, where is helped by NOMA-strong with capability D2D communications. The expressions for probability are derived characterize proposed scheme. results show that can achieve superior compared conventional and orthogonal (OMA). In order further performance, an adaptive (AMA) also studied, which dynamically...
In this paper, the application of wireless information and power transfer to cooperative networks is investigated, where relays in network are randomly located based on decode-forward strategy. For scenario with one source-destination pair, three different strategies for using available studied, their impact outage probability diversity gain characterized by applying stochastic geometry. By assumptions that path loss exponent two relay-destination distances much larger than source-relay...