Results 101 to 110 of about 41,590 (218)
Extreme Rhythm Keeping in Long‐Range Slow Click Communication of Sperm Whales
Annals of the New York Academy of Sciences, Volume 1559, Issue 1, May 2026.In this study, we show that male sperm whales produce low‐frequency slow clicks at low repetition rates with extreme source levels > 200 dB re 1 µPa (pp), making them the loudest mammalian communication signal, with an estimated active space of ∼70 km.
Simone K. A. Videsen +10 more
wiley +1 more source
Journal of Communications Software and Systems, 2006 We characterize the Total Generalized Squared Correlation (TGSC) for a given signature sequence set used in uplink synchronous code division multiple access (S-CDMA) when channel state information is known perfectly at bothtransmitter and receiver.
Paul Cotae, Matt Aguirre
doaj
Measurement-Based LoS/NLoS Channel Modeling for Hot-Spot Urban Scenarios in UMTS Networks
International Journal of Antennas and Propagation, 2014 A measurement campaign is introduced for modeling radio channels with either line-of-sight (LoS) or non-line-of-sight (NLoS) connection between user equipment (UE) and NodeB (NB) in an operating universal mobile telecommunications system.
Jiajing Chen +7 more
doaj +1 more source
Multipath Channel Estimation Via The Mpm Algorithm
, 2005 Publication in the conference proceedings of EUSIPCO, Antalya, Turkey ...
Rabaste, Olivier, Chonavel, Thierry
openaire +4 more sources
Comparison of SUN and Wi-Fi P2P WSN in M2M Environments
International Journal of Distributed Sensor Networks, 2015 In wireless sensor network, two scenarios are combined which involve either short-range or long-range communications. IEEE 802.15.4g and IEEE 802.11 are considered in machine to machine environments, because they can utilize the identical frequency band.
Eui-Suk Oh +3 more
doaj +1 more source
Dianxin kexueWith the development of smart grids, power line communication (PLC) faces challenges such as surging service data and increasing transmission rates, making high-precision channel estimation crucial for enhancing communication performance.
Liu Yan, Zhu Enguo, Zheng Guoquan
doaj
Time-Varying Channel Estimation Based on Distributed Compressed Sensing for OFDM Systems
SensorsFor orthogonal frequency division multiplexing (OFDM) systems in high-mobility scenarios, the estimation of time-varying multipath channels not only has a large error, which affects system performance, but also requires plenty of pilots, resulting in low
Yong Ding +4 more
doaj +1 more source
Noncoherent CSK communication system and its performance analysis
Tongxin xuebao, 2007 A noncoherent CSK communication system with adjustable weights was proposed.Both theoretical analysis and simulation for its BER performance under the environment of multipath channels were studied.The results show that the BER performance of the system ...
CHEN Hong-bin, FENG Jiu-chao
doaj +2 more sources
Multiuser Detection In Multipath Non-Gaussian Channels
, 2000 Publication in the conference proceedings of EUSIPCO, Tampere, Finland ...
POOR H. V., TANDA, MARIO
openaire +4 more sources
Scientific ReportsIn this paper, we investigate the decoding performance and corresponding decoding strategies for polar-coded orthogonal frequency division multiplexing (OFDM) system operating under multipath fading channels.
Mingbao Wu +5 more
doaj +1 more source