Article
Chemistry, Multidisciplinary
Saleem Shahid, Hijab Zahra, Saad Bin Qaisar, Ijaz Haider Naqvi, Syed Muzahir Abbas, Subhas Mukhopadhyay
Summary: This paper presents an experimental characterization of a proposed radio link model for an underground mine sensor network. Power efficiency and range are critical considerations when designing a wireless sensor network for low data rate applications in underground mines. A radio link model was developed and evaluated specifically for 433 MHz DASH7 in underground mines, considering the practical electromagnetic properties of mine walls and the propagation medium. The model utilizes the received signal strength indicator (RSSI) and packet error rate (PER) to measure wave propagation and assess the quality of the radio link, leading to improved performance and reliability in complex mine structures.
APPLIED SCIENCES-BASEL
(2023)
Review
Engineering, Electrical & Electronic
Fabian Seguel, Pablo Palacios-Jativa, Cesar A. Azurdia-Meza, Nicolas Krommenacker, Patrick Charpentier, Ismael Soto
Summary: Underground mining is expected to become the leading industry in the future, but current technologies face various limitations due to the unique and demanding conditions in underground mines. Therefore, studying positioning technologies for underground mines is of significant importance, as it requires addressing current system constraints and identifying future research directions.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Analytical
Antoni Ivanov, Bilal Muhammad, Krasimir Tonchev, Albena Mihovska, Vladimir Poulkov
Summary: This paper presents a novel experimental setup involving a constellation of three UAVs and a software-defined radio for measuring communication signals. The analysis of measured data in temporal, spatial, and frequency domains provides insights into the utilization of a 20 MHz band in the 2.4 GHz spectrum and its variation with altitude.
Article
Engineering, Electrical & Electronic
Jacopo Iannacci, Girolamo Tagliapietra
Summary: This article introduces a 4-bit RF power step attenuator entirely realized in RF-MEMS technology. The fabricated devices are tested and validated up to 30 GHz, showing a flatness of attenuation as good as 1 dB over a 60 GHz frequency span, despite some technology non-idealities.
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2022)
Article
Optics
Mingfang Li, Muguang Wang, Mengyao Han, Beilei Wu, Qi Ding
Summary: A multiband radio-over-fiber system for a 5G mobile front-haul network is proposed, capable of transmitting RF signals in four different frequency bands and achieving good performance after 10 km SSMF transmission. The system meets various 5G demands and complies with 3GPP specifications.
Article
Engineering, Electrical & Electronic
Mingliang Xiong, Qingwen Liu, Xin Wang, Shengli Zhou, Bin Zhou, Zhiyong Bu
Summary: This paper proposes an intra-cavity second-harmonic-generation resonant beam communication system to improve energy conversion efficiency. By eliminating echo interference and simplifying system design, the proposed system reduces energy consumption and achieves the same channel capacity level.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Environmental Sciences
Hermano Melo Queiroz, Francisco Ruiz, Youjun Deng, Valdomiro S. de Souza Junior, Amanda Duim Ferreira, Xose Luis Otero, Danilo de Lima Camelo, Angelo Fraga Bernardino, Tiago Osorio Ferreira
Summary: This study evaluated geochemical changes in Fe-rich tailings after a mining disaster, finding a significant decrease in crystallinity of Fe oxyhydroxides, resulting in increased reactivity with cationic and anionic species and greater susceptibility to reductive dissolution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Electrical & Electronic
B. Korunur Engiz, M. Lodro, S. Greedy, D. W. P. Thomas
Summary: In this study, the near-field and far-field links in a metal enclosure environment were measured and evaluated using key performance indicators. The results showed that determining an optimum gain region can improve system performance and reduce frequency selectivity of the channel.
ELECTRONICS LETTERS
(2023)
Article
Computer Science, Information Systems
Ayman T. Abusabah, Rodolfo Oliveira
Summary: This paper presents a comprehensive study on the capacity characterization of mobile wireless networks utilizing directive communications and full-duplex communication technology. The study shows that mobility, directive beams, and full-duplex capabilities have an impact on the network capacity. The paper provides an accurate and effective capacity characterization model based on the signal-to-interference-plus-noise ratio (SINR) and explores the probability of a receiver simultaneously decoding multiple packets. This study offers valuable insights for network performance evaluation and future optimization strategies.
Article
Chemistry, Analytical
C. Rajesh Babu, Amutha Balakrishnan, Kadiyala Ramana, Saurabh Singh, In-Ho Ra
Summary: This paper discusses the issue of spectrum allocation and the role of cognitive radio technology in addressing the efficiency of spectrum utilization and demand matching. Based on global spectrum allocation, CR technology utilizes static and dynamic spectrum allocation to meet the needs of secondary users and allocate unused spectrum to them when PUs are not using it. The paper also identifies some existing research gaps and presents the results of behavioral analysis studies and real-time surveys conducted in India.
Article
Chemistry, Analytical
Justin Daniel, Spencer Nguyen, Md Atiqur Rahman Chowdhury, Shaofan Xu, Chengying Xu
Summary: This paper introduces a design for temperature and pressure wireless sensors made of polymer-derived ceramics for extreme environment applications. The sensors were successfully tested for temperature measurement from 600°C to 900°C and pressure sensing using piezo-dielectric property of silicon carbon nitride. The developed system provides a feasible solution for wireless measurement in extreme environments.
Article
Multidisciplinary Sciences
Junqing Tang, Pengjun Zhao, Zhaoya Gong, Hongbo Zhao, Fengjue Huang, Jiaying Li, Zhihe Chen, Ling Yu, Jun Chen
Summary: Large-scale disasters disproportionately impact different population groups, especially the vulnerable and marginalized. This study investigates the resilience of human mobility during the unprecedented '720' Zhengzhou flood in China in 2021 using a massive amount of mobile phone signaling data. The findings reveal three counter-intuitive resilience patterns in human mobility and demonstrate that these patterns are not associated with gender or age.
NATIONAL SCIENCE REVIEW
(2023)
Article
Geosciences, Multidisciplinary
Siddhartha Roy, Devi Prasad Mishra, Ram Madhab Bhattacharjee, Hemant Agrawal
Summary: Underground mining is a hazardous profession, with miners facing various risks and dangers. The increasing demand for coal leads to the extraction of coal at a higher rate and the depletion of easily minable shallow coal deposits. This necessitates the mining of deep-seated deposits using underground methods. However, this poses a threat to miners' health, productivity, and safety due to the increasing heat stress associated with rising depth and the use of high-capacity machines. This study focuses on predicting heat stress in underground coal mines using a detailed field survey and genetic programming (GP) to establish a correlation between environmental parameters and heat stress. The results show that GP can effectively predict heat stress in underground mines, with a good correlation coefficient. Sensitivity analysis reveals that all input parameters have a considerable effect on heat stress, with dry-bulb temperature having the highest effect.
Article
Chemistry, Analytical
Cezary Ziolkowski, Jan M. Kelner, Jaroslaw Krygier, Aniruddha Chandra, Ales Prokes
Summary: This paper discusses the basic technology that will determine the expansion of the technical capabilities of fifth generation cellular systems, which is massive multiple-input-multiple-output, and the influence of antenna beam orientations on radio channel capacity. Through simulation studies, it is shown that selecting the optimal transmitting and receiving beam directions can increase the level of the received signal, and a methodology is proposed to evaluate this impact.
Article
Computer Science, Hardware & Architecture
Partha Pratim Ray
Summary: This article emphasizes the importance of focusing on the development of the sixth generation (6G) networking while mobile network operators are still dealing with the distribution and allocation of existing 5G mobile communications. It discusses the vision of 6G, the crucial requirements for its network infrastructure, key networking and communication technologies, as well as important enablers and use case scenarios for 6G. It also addresses open research challenges and future road map designing to meet the needs of the 6G era.
JOURNAL OF SYSTEMS ARCHITECTURE
(2021)
Article
Engineering, Electrical & Electronic
Salah Eddine Zegrar, Haji M. Furqan, Huseyin Arslan
Summary: Novel physical layer security schemes are proposed for securing data and pilots in MIMO systems, utilizing adaptive and flexible algorithms to protect both simultaneously. By exploiting minimum-phase all-pass channel decomposition, the proposed algorithms provide security without compromising legitimate user performance. Analysis on data security and pilot security demonstrate the effectiveness of the algorithms in enhancing communication secrecy.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Mehmet Ali Aygul, Mahmoud Nazzal, Huseyin Arslan
Summary: This paper proposes a method to improve channel estimation quality in millimeter wave massive multiple input multiple output systems using lens antenna arrays as an effective beam selection mechanism. By simultaneously using orthogonal matching pursuit and support detection algorithms, the proposed method outperforms conventional algorithms.
SIGNAL IMAGE AND VIDEO PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Musab Alayasra, Huseyin Arslan
Summary: This paper emphasizes the importance of intelligent reflecting surfaces (IRS) as controlled scattering clusters, proposing a new channel model and investigating the role of IRS in beam-space. A segment-activation scheme is introduced to maximize received signal power.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Computer Science, Information Systems
Armed Tusha, Saud Althunibat, Mazen O. Hasna, Khalid Qaraqe, Huseyin Arslan
Summary: This letter examines the potential of multi-user diversity for OTFS systems considering practical scenarios. A novel scheduling algorithm is proposed to enhance channel diversity by assigning the available resources to the UE with the largest number of channel taps. Mathematical analysis and simulation results demonstrate that the proposed technique outperforms the existing scheme in terms of system bit error rate.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2022)
Article
Computer Science, Information Systems
Salah Eddine Zegrar, Huseyin Arslan
Summary: This letter proposes a novel CCP-OFDM transceiver design enabling low-complexity frequency-domain channel estimation and equalization. Simulations under frequency selective channels have validated the effectiveness of the proposed scheme in terms of computational complexity, normalized mean squared error (NMSE), and bit error rate (BER).
IEEE WIRELESS COMMUNICATIONS LETTERS
(2022)
Article
Telecommunications
Shaima Abidrabbu, Abdelrahman Abushattal, Huseyin Arslan
Summary: This paper investigates the Physical Layer Security (PLS) problem against internal Eavesdropper (Eve) in Cognitive Radio with Nonorthogonal Multiple Access (CR-NOMA) under the limitations of joint delay and confidentiality rate. The proposed scheme includes an initial power allocation based on interference threshold and a multi-objective problem formulated using Stackelberg game modeling. The simulation results demonstrate the superiority of the proposed scheme in terms of average utility function, spectral efficiency, fairness index, and reliability compared to the conventional scheme.
IEEE TRANSACTIONS ON COGNITIVE COMMUNICATIONS AND NETWORKING
(2023)
Article
Engineering, Electrical & Electronic
Mostafa Ibrahim, Huseyin Arslan, Hakan Ali Cirpan, Sabit Ekin
Summary: This paper proposes a novel time-frequency warped waveform composed of asymmetric raised cosine pulses for short symbols, mMTC, and IoT applications. The waveform has low power tails in the time domain, better performance in the presence of delay spread and time offsets. The time-axis warping unitary transform is applied to control waveform occupancy and compensate for high roll-off factor pulses at symbol edges. Comparisons with conventional ZT-DFT-s-OFDM and CP DFT-s-OFDM schemes are presented in the simulations section.
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Jun Li, Shuping Dang, Yu Huang, Pengxu Chen, Xiaomin Qi, Miaowen Wen, Huseyin Arslan
Summary: In this paper, a composite multiple-mode orthogonal frequency division multiplexing with index modulation (C-MM-OFDM-IM) scheme is proposed to increase the spectral efficiency (SE) of OFDM-IM systems by extending the indexing to the energy and constellation domains. A variant IM scheme named C-MM-OFDM-IM-II is also proposed to further increase the SE of C-MM-OFDM-IM. Upper-bounded bit error rate (BER) and lower-bounded achievable rate are both derived to evaluate the performance of C-MM-OFDM-IM(-II).
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2023)
Article
Computer Science, Information Systems
Salah Eddine Zegrar, Huseyin Arslan
Summary: This letter introduces a novel OTFS structure by modifying the FCP structure in OTFS modulation to enhance system performance at the receiver. The proposed approach utilizes the FCP structure in the delay-Doppler domain to decode information in the CP block instead of discarding it. Simulation results validate the reduction in channel estimation overhead and improved signal-to-noise ratio (SNR) of the received signal.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2023)
Article
Computer Science, Information Systems
Muhammad Sohaib J. Solaija, Salah Eddine Zegrar, Huseyin Arslan
Summary: Key generation for secure communication is challenging in high-mobility scenarios due to the low coherence time. This is further exacerbated in frequency-division duplex systems due to the non-reciprocal wireless channel in uplink and downlink. The current work leverages the symplectic Fourier transform to convert fast-varying time-frequency domain signals to slow-varying delay-Doppler (DD) domain and utilizes the wireless channel representation in the DD domain to generate shared keys. The proposed approach is evaluated in terms of key generation and mismatch rates considering correlated eavesdropper, as well as the various randomness criteria provided by the National Institute of Standards and Technology.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2023)
Article
Computer Science, Information Systems
Hanadi Salman, Huseyin Arslan
Summary: This article introduces a scheme that provides highly reliable and secure algorithm in the Internet of Things. The scheme adopts asymmetric multi-level physical layer security technology, which provides security protection for legitimate links and simplifies receiver design. Numerical results show that the scheme effectively confounds eavesdroppers without compromising the bit error rate of the intended receiver.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2023)
Article
Computer Science, Information Systems
Ahmet Enes Duranay, Ebubekir Memisoglu, Basak Ozbakis, Huseyin Arslan
Summary: This paper proposes a phase rotation PAPR reduction approach for mixed-numerology OFDM in order to address the high PAPR disadvantage of OFDM. The proposed approach eliminates the need for additional IFFT and side information overhead, and exploits the mixed-numerology transmitter structure to provide three novel approaches for PAPR reduction.
Article
Computer Science, Information Systems
Liza Afeef, Gokhan Mumcu, Huseyin Arslan
Summary: This paper proposes a sub-grouped LAS-MIMO architecture and a hybrid precoding algorithm to improve the energy efficiency and spectral efficiency of wireless networks. The LAS structure is divided into sub-groups to serve multiple users with different requirements, and an optimization problem is formulated to maximize the spectral efficiency. The proposed precoding algorithm effectively controls the architecture and achieves high efficiency in terms of both spectral efficiency and energy efficiency.
Article
Engineering, Electrical & Electronic
Mehmet Mert Sahin, Huseyin Arslan, Kwang-Cheng Chen
Summary: This paper introduces the formation of a smart radio environment for efficient utilization of radio spectrum in any given geographical area, utilizing reconfigurable intelligent surface (RIS) and ambient backscatter communication (ABC) technologies. The use of multiple RISs to enhance secondary usage capacity, controlling electromagnetic energy in the spatial domain, and the introduction of repositionable dynamic RIS for changing shadowing effects are explored. Additionally, the use of multiple coordinated ABCs to protect the primary usage region against radiation from secondary uses is investigated. By merging these technologies, high spectral efficient wireless systems can be achieved in a smart radio environment.
IEEE OPEN JOURNAL OF THE COMMUNICATIONS SOCIETY
(2022)
Article
Computer Science, Information Systems
Muhammad Sohaib J. Solaija, Hanadi Salman, Abuu B. Kihero, Mehmet Izzet Saglam, Huseyin Arslan
Summary: The diversity of services in 5G and beyond networks requires a coordinated and flexible network architecture. Generalizing CoMP to a proactive and efficient resource management framework can support different user requirements while considering network constraints, enabling diverse use cases in the network.
