Results 21 to 30 of about 5,914 (307)
Design of planar four-antenna system for single soldier handheld terminal
Dianzi Jishu Yingyong, 2021 The planar integration design of the antenna system for soldier terminals is presented in this paper based on the requirements of the miniaturization and high integration. A four-antenna system including recieving and transmitting Ad-Hoc network antennas,
Zhou Wenhui
doaj +1 more source
Utility-Based Wireless Routing Algorithm for Massive MIMO Heterogeneous Networks
Applied Sciences, 2020 With the development of 5G communication, massive multiple input multiple output (MIMO) technology is getting more and more attention. Massive MIMO uses a large amount of simultaneous transmitting and receiving antennas to reduce power consumption and ...
Wei Zhao, Wen-Hsing Kuo
doaj +1 more source
Transmit antenna selection schemes for STBC-SM [PDF]
TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES, 2020 أدى اقتران الترميز الزمكاني (STBCs) بمخطط التوليف الفضائي (SM) إلى إدخال تقنية التنوع لأنظمة SM. تقدم هذه الورقة تقنيات اختيار الهوائي لتوفير كسب إضافي مع التوليف الفضائي المشفر لترميز الزمكاني (STBC-SM). على وجه التحديد ، اختيار الإرسال الأمثل , تمت دراسة عناصر الهوائي عند المرسل لإرسال رمز فضاء الزمكاني المعدل مكانيا.
Belal Asaati, Ammar M. Abu-Hudrouss
openaire +1 more source
Sensors, 2023 This paper assessed the variability of radiofrequency exposure among road users in urban settings due to vehicle-to-vehicle (V2V) communication operating at 5.9 GHz.
Gabriella Tognola +4 more
doaj +1 more source
Applied Sciences, 2019 This paper presents a practical method of receiving waves having orbital angular momentum (OAM) in the far field of an antenna transmitting multiple OAM modes, each carrying a separate data stream at the same radio frequency (RF).
Marek Klemes
doaj +1 more source
IEEE Access, 2023 Indoor object localization and positioning is part of the space-awareness concept which has seen a rising popularity in recent Internet of Things (IoT) research and applications.
Amina Benouakta +3 more
doaj +1 more source
Full Rate Space Time Codes for Large Number of Transmitting Antennas with Linear Complexity Decoding
, 2010 Among the specification of the 5G networks two crucial aspects are the support of fast mobility and high data rates. With fast mobility, the fading channels phenomenon become crucial, resulting in the need for multiple input/output channel to create ...
Laufer, Amir +3 more
core +1 more source
A Method for Performance Enhancement for Aeronautical Telemetry Radio Link Using Alamouti Code [PDF]
فصلنامه علوم و فناوری فضایی, 2011 In the most aeronautical telemetry systems, at least two antennas are used to transmit radio signals towards receiver antenna. It is due to effect of large metallic fuselage of air vehicles in cutoff radio link between transmitter and receiver antenna ...
Sh. Marzban, K. Mohamed-Pour
doaj
Receiving and transmitting feed of reflector antennas for satellite communication systems
Физика волновых процессов и радиотехнические системы, 2022 The performance indicators of the antenna-feed path of a multiband reflector antenna are formulated and analyzed in the form of partial coefficients of the complex amplitude of the input signal, vectors of the polarization signal and noise in the input ...
Dmitry D. Gabriel’ean +3 more
doaj +1 more source
Enumeration of base station antennas in a cognitive receiver by exploiting pilot patterns
, 2013 International audienceThis letter deals with the identification of the number of transmitting antennas at a base station. This estimation is achieved by exploiting the orthogonality between the pilot patterns from each transmitting antenna.
Gazor, Saeed +3 more
core +1 more source