Results 11 to 20 of about 119,266 (304)
QUANTUM BIT ERROR RATE IN MODELED ATMOSPHERES [PDF]
International Journal of Quantum Information, 2009 The quantum bit error rate is a key quantity in quantum communications. If the quantum channel is the atmosphere, the information is usually encoded in the polarization of a photon. A link budget is required, which takes into account the depolarization of the photon after its interaction with the atmosphere as well as absorption, scattering and ...
N. ANTONIETTI +8 more
openaire +5 more sources
Capacity Versus Bit Error Rate Trade-Off in the DVB-S2 Forward Link
EURASIP Journal on Wireless Communications and Networking, 2007 The paper presents an approach to optimize the use of satellite capacity in DVB-S2 forward links. By reducing the so-called safety margins, in the adaptive coding and modulation technique, it is possible to increase the spectral efficiency at expenses of
Matteo Berioli +2 more
doaj +2 more sources
Comparison of Bit Error Rate of Line Codes in NG-PON2
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems, 2016 This article focuses on simulation and comparison of line codes NRZ (Non Return to Zero), RZ (Return to Zero) and Miller’s code for NG-PON2 (Next-Generation Passive Optical Network Stage 2) using.
Tomas Horvath +4 more
doaj +1 more source
Bit Error Rate pada Sistem MIMO MC-CDMA dengan Teknik Alamouti-STBC
Techne, 2017 Pada makalah ini dilaporkan hasil penelitian sistem MIMO MC-CDMA dengan teknik Alamouti Space Time Block Code (STBC) menggunakan dua antena pengirim dan dua antena penerima. Kinerja sistem diukur dengan nilai Bit Error Rate (BER).
Sekar Harlen +2 more
doaj +1 more source
Bit error rate performance of underwater optical wireless communication with hybrid modulation
IET Communications, 2023 Turbulence effects can cause performance degradation for underwater optical wireless communication (UOWC) system. In this paper, a hybrid modulation (modulation–modulation, M–M) is presented to resist turbulence‐induced fading and improve the ...
Qiong Luo +3 more
doaj +1 more source
Increasing of bit error rate performance for OFDM systems over fading channels
Физика волновых процессов и радиотехнические системы, 2022 A method for increasing performance of OFDM systems in multipath channels is proposed. The proposed method uses Kalman filter based channel estimator with block type pilot structure.
Larisa I. Averina, Alexandr Yu. Lafickiy
doaj +1 more source
Bit-Error-Rate Analysis of Raptor Codes over Rician Fading Channels
Journal of Electrical and Computer Engineering, 2020 The bit-error-rate expressions of nonsystematic Raptor (NR) codes and systematic Raptor (SR) codes over Rician fading channels are first derived using a Gaussian approximation (GA) approach.
Jingke Dai
doaj +1 more source
RZ Line Coding Scheme With Direct Laser Modulation for Upgrading Optical Transmission Systems
Open Engineering, 2020 This study reports the efficient use of a direct laser modulated response measured with the return-to-zero coding scheme in optical transmission systems.
El-Hageen Hazem M. +2 more
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Time Domain Equalizer Design Using Bit Error Rate Minimization for UWB Systems
EURASIP Journal on Wireless Communications and Networking, 2009 Ultra-wideband (UWB) communication systems occupy huge bandwidths with very low power spectral densities. This feature makes the UWB channels highly rich in resolvable multipaths.
Syed Imtiaz Husain +3 more
doaj +2 more sources
Adaptive minimum bit-error-rate filtering
, 2004 Adaptive filtering has traditionally been developed based on the minimum mean square error (MMSE) principle and has found ever-increasing applications in communications. The paper develops adaptive filtering based on an alternative minimum bit error rate
Chen, S.
core +1 more source