10   Artículos

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en línea
Yuyu Liu, Jinbao Zhang and Dan Zhang    
Given the mutual information of finite-alphabet inputs cannot be calculated concisely and accurately over fading channels, this paper proposes a new method to calculate the mutual information. First, the applicability of the saddle point method is studie... ver más
Revista: Applied Sciences    Formato: Electrónico

 
en línea
Mohamed L. Ammari,Francois Gagnon     Pág. 51 - 57
This paper investigates an adaptive M-ary phaseshiftkeying (M-PSK) modulation scheme over Rayleigh flatfading channels. The data rate is adapted according to thechannel state. At the receiver, the fading is estimated using pilot symbols. To cancel the ch... ver más
Revista: Journal of Communications Software and Systems    Formato: Electrónico

 
en línea
Younggil Kim    
Power control in an RS-coded orthogonal frequency division multiplex (OFDM) system with error-and-erasure correction decoding in Rayleigh fading channels was investigated. The power of each symbol within a codeword was controlled to reduce the codeword e... ver más
Revista: Information    Formato: Electrónico

 
en línea
Khoirun Ni'amah,Muhammad Panji Kusuma Praja,Yuninda Dwianti Marimbun     Pág. 90 - 98
This reseach simulates and analyzes paramaters bit error rate (BER) of 16-QAM and 64-QAM modulation on Additive White Gaussian Noise and Rayleigh Fading channels. This research aims to determine 5G modulation with the level of data quality after the tran... ver más

 
en línea
In this paper, we examine non-orthogonal multiple access (NOMA) and relay selection strategy to benefit extra advantage from traditional cognitive radio (CR) relaying systems. The most important requirement to prolong lifetime of such network is employin... ver más
Revista: Energies    Formato: Electrónico

 
en línea
Xutao Sheng, Guangyue Lu, Liqin Shi and Yinghui Ye    
Simultaneous wireless information and power transfer is a practicable solution to encourage energy-constrained relay nodes to cooperate with the source to transmit information to the destination. In this paper, we study the outage performance of hybrid p... ver más
Revista: Information    Formato: Electrónico

 
en línea
Stephan Sundermeier, Maximilian Passmann, Stefan aus der Wiesche and Eugeny Y. Kenig    
In numerous turbomachinery applications, e.g., in aero-engines with regenerators for improving specific fuel consumption (SFC), heat exchangers with low-pressure loss are required. Pil low-plate heat exchangers (PPHE) are a novel exchanger type and promi... ver más

 
en línea
Bereket Babiso Yetera,Philip K. Langat,Edward K. Ndungu     Pág. 63 - 70
An Orthogonal Frequency Division Multiplexing based mobile wireless network with a sender, a destination and a third station acting as a cooperating node is modelled and analyzed. The length of cyclic prefix in the orthogonal frequency division multiplex... ver más

 
en línea
Ali Eksim     Pág. 97 - 103
Radio Frequency Identification (RFID) is a pervasive wireless technology to automatically identify, track, and locate objects or people. RFID technology falls into three categories with respect to tags' energy source: passive, semi-passive and active. Ac... ver más
Revista: Journal of Communications Software and Systems    Formato: Electrónico

 
en línea
Mykhailo Mozhaiev, Pavlo Buslov     Pág. 71 - 77
Subject of research: the process of monitoring the quality indicators of a computer network of a forensic information system using methods for increasing the frequency resolution of acousto-optic spectrum analyzers. The aim of this work is the possibilit... ver más

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