Mesolithic of the Eastern Fennoscandia: chronology and periodization by Dmitriy V. Gerasimov

“…These periods differ significantly in terms of material culture, settling, subsistence strategy and interregional communication systems. Although the differences between the "initial" and "final" appearance of culture are very significant, judging by the available data, the changes accumulated gradually. …”
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Improved Pilot-Aided Channel Estimation for MIMO-OFDM Fading Channels by J. Mar, Chi-Cheng Kuo, M. B. Basnet

“…The space-frequency block code-OFDM (SFBC-OFDM) system and a six-path fading channel model are considered as an example of the high mobility MIMO-OFDM wireless communications system. Through simulations it is shown that SFBC-OFDM system using the proposed approach can satisfy the performance requirements over frequency selective and frequency nonselective fast fading channels.…”
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Pattern Reconfigurable Wideband Stacked Microstrip Patch Antenna for 60 GHz Band by Alexander Bondarik, Daniel Sjöberg

“…The antenna is designed for 60 GHz central frequency and can be used in high speed wireless communication systems.…”
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A Review of Antenna Array Technologies for Point-to-Point and Point-to-Multipoint Wireless Communications at Millimeter-Wave Frequencies by G. Federico, D. Caratelli, G. Theis, A. B. Smolders

“…With the introduction of 5G communication systems operating in the mm-wave frequency range, new opportunities in terms of multimedia services and applications will become available. …”
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Received Power Attenuation Analysis Based on Wavelet for Reflection-Style Optical Antenna Deformations in Free-Space Laser Communications by Wanqing Xie, Liying Tan, Jing Ma, Yang Liu

“…It is hoped that the study can be used in the design of free space laser communication systems.…”
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QoS-aware enhanced proportional faire scheduling algorithm for real-time services in LTE networks by Mahnaz Sotoudeh Bahreyni, Vahid Sattari-Naeini

“…Adding multi-media services to wireless communication systems provide new challenges of resource allocation. …”
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Sign Language Recognition System for Deaf Patients: Protocol for a Systematic Review by Milena Soriano Marcolino, Lucca Fagundes Ramos Oliveira, Lucas Rocha Valle, Luiza Marinho Motta Santa Rosa, Zilma Silveira Nogueira Reis, Thiago Barbabela de Castro Soares, Elidéa Lúcia Almeida Bernardino, Raniere Alislan Almeida Cordeiro, Raquel Oliveira Prates, Mario Fernando Montenegro Campos

“…Therefore, the development of automatic communication systems to assist the interaction between this population and health care workers is paramount. …”
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Improved lattice‐based mix‐nets for electronic voting by Valeh Farzaliyev, Jan Willemson, Jaan Kristjan Kaasik

“…Abstract Mix‐networks were first proposed by Chaum in the late 1970s–early 1980s as a general tool for building anonymous communication systems. Classical mix‐net implementations rely on standard public key primitives (e.g., ElGamal encryption) that will become vulnerable when a sufficiently powerful quantum computer will be built. …”
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Cross-population variation in usage of a call combination: evidence of signal usage flexibility in wild bonobos by Isaac Schamberg, Martin Surbeck, Simon W. Townsend

“…To shed light on the phylogeny of the phenomenon, comparative data examining the relationship between signal form and function in the communication systems of non-humans is central. Here we report the results of a study on the production and usage the whistle-high hoot call combination (W + HH) from two distant populations of wild bonobos (Pan paniscus): Lui Kotale, DRC, and Kokolopori, DRC. …”
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Channel Estimation Optimization Model in Internet of Things Based on MIMO/OFDM with Deep Extended Kalman Filter by Van Tinh Shi, Dong Ren Nhg

“…Channel estimation plays a vital role in the performance of wireless communication systems. However, apart from the usual OFDM modes, there are also orthogonal conditions for modulationbased multi-channel systems, which make channel estimation on networks such as the Internet of Things (IoT) more complex. …”
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New Flexible Medical Compact Antenna: Design and Analysis by Yann Mahe, Anne Chousseaud, Marc Brunet, Bruno Froppier

“…Some results on embedded antennas for medical wireless communication systems are presented. Medical telemetry can advantageously assist medical diagnostics. …”
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Analysis and Design of an Optimal Noise Estimation and Cancellation Filter in Wireline Communication by Mohammad Emami Meybodi, Hossein Shakiba, Ali Sheikholeslami

“…This paper presents a comprehensive study of noise prediction and cancellation techniques in high-speed wireline communication systems. Feedforward and feedback architectures are compared, and it is found that while feedforward architecture can reduce total noise power, it fails to reduce symbol error rate (SER) due to unreliable noise estimation. …”
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Optimization and Modeling of Optical Emission Spatial Coverage from Underwater Multi-Faceted Optical Base Stations by Junjie Shi, Chunbo Ma, Xu Tian, Hanjun Guo, Jun Ao

“…Compared with point-to-point wireless optical communication systems, multi-faceted Optical Base Stations (OBSs) offer the advantages of supporting multi-user access and achieving omnidirectional dynamic communication. …”
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Main-Branch Structure Iterative Detection Using Approximate Message Passing for Uplink Large-Scale Multiuser MIMO Systems by Qifeng Zou, Xuezhi Tan, Mei Liu, Lin Ma

“…In this paper, we introduce an iterative detection algorithm for uplink large-scale multiuser MIMO-OFDM communication systems. We design a Main-Branch structure iterative turbo detector using the Approximate Message Passing algorithm simplified by linear approximation (AMP-LA) and using the Mean Square Error (MSE) criterion to calculate the correlation coefficients between main detector and branch detector for the given iteration. …”
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A Novel SLM Scheme for PAPR Reduction in OFDM Systems by Tian-Ming Ma, Yu-Song Shi, Ying-Guan Wang

“…Orthogonal frequency-division multiplexing (OFDM) is an attractive transmission technique for high-bit-rate communication systems. One major drawback of OFDM is the high peak-to-average power ratio (PAPR) of the transmitter's output signal. …”
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Analysis and Design of a Novel Multiband Antenna for Mobile Terminals by Yuan Yao, Wanzhong Chen, Xiaodong Chen, Junsheng Yu

“…It is very suitable for multifunctional terminal applications in wireless communication systems.…”
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The evolution of primate vocal communication: a social route by Alban Lemasson, Camille Coye, Nancy Rebout, Florence Levréro

“…However, the measures used classically to tackle this question (i.e. number of call types and group size) fail to capture some of the subtleties of the evolution of communication systems. Integrative approaches comparing closely related species to highlight the possible relationship between the characteristics of their social systems, their ecological niche and associated vocal communication systems are required to further our understanding of this evolutionary puzzle. …”
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Nonlinear Pulse Shaping in Fibres for Pulse Generation and Optical Processing by Sonia Boscolo, Christophe Finot

“…The signal processing applications will span optical regeneration, linear distortion compensation, optical decision at the receiver in optical communication systems, spectral and temporal signal doubling, and frequency conversion.…”
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Adaptive Security Solutions for NOMA Networks: The Role of DDPG and RIS-Equipped UAVs by Syed Zain Ul Abideen, Abdul Wahid, Mian Muhammad Kamal

“…This method not only shows how flexible and successful the DDPG algorithm is at protecting wireless communications when used in conjunction with an RIS but it also highlights how much the algorithm has advanced secure communication systems.…”
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Modeling and Performance Analyses of Hybrid Cellular and Broadcasting Networks by Peter Unger, Thomas Kürner

“…Powerful and efficient communication systems are needed, which provide high capacities, especially at the downlink. …”
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