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BER improvement using the better than double-jump 2 pulse in OFDM schemes prone to frequency offset
Zabala-Blanco, David; Azurdia-Meza, Cesar A.; Kamal, Shaharyar; Dehghan Firoozabadi, Ali; Montejo-Sánchez, Samuel (2019)Orthogonal frequency division multiplexing (OFDM) is highly sensitive to frequency offset since it induces inter-carrier interference (ICI). Fortunately, the pulse shaping filter method has proven its potential to reduce ...
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ICI reduction by using the improved double-jump 1 pulse in MQAM-OFDM schemes
Zabala-Blanco, David; Azurdia-Meza, Cesar A.; Montejo-Sánchez, Samuel; Dehghan Firoozabadi, Ali; Palacios Játiva, Pablo; Soto, Ismael (2020)Orthogonal frequency division multiplexing (OFDM) is sensitive to frequency offset since it causes inter-carrier interference (ICI). Frequency offset results from the receiver's crystal oscillator inaccuracy, Doppler spread, ...
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Multilayer extreme learning machine as equalizer in OFDM-based radio-over-fiber systems
Zabala-Blanco, David; Mora, Marco ; Azurdia-Meza, Cesar A.; Dehghan Firoozabadi, Ali; Palacios Játiva, Pablo; Montejo-Sánchez, Samuel (2021)Mobile/wireless networks aim to support diverse services with numerous and sophisticated requirements, such as energy efficiency, spectral efficiency, negligible latency, robustness against time and frequency selective ...
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Neuroevolution-based adaptive antenna array beamforming scheme to improve the V2V communication performance at intersections
Kang Kim, Hojin; Becerra, Raimundo; Bolufé, Sandy; Azurdia-Meza, Cesar A.; Montejo-Sánchez, Samuel; Zabala-Blanco, David (2021)The opportunistic exchange of information between vehicles can significantly contribute to reducing the occurrence of accidents and mitigating their damages. However, in urban environments, especially at intersection ...
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OFDM tolerance to additive white Gaussian and laser phase noises in optical heterodyning systems accompanied by the feasible pilot-assisted equalization
Zabala-Blanco, David; Azurdia-Meza, Cesar A.; Montejo-Sánchez, Samuel; Dehghan Firoozabadi, Ali (2020)It is well known that the performance of orthogonal frequency division multiplexing (OFDM) is limited by phase noise, which depends on the laser linewidths for coherent-detection radio over fiber (RoF) systems. In this ...
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Performance analysis of OFDM-Based VLC schemes in NLOS channels
Palacios-Játiva, Pablo; Azurdia-Meza, Cesar A.; Román Cañizares, Milton; Zabala-Blanco, David; Montejo-Sánchez, Samuel (2020)In this paper, several Orthogonal frequency division multiplexing (OFDM)-based Visible light Communications (VLC) techniques designed for intensity modulation/direct detection (IM/DD) are evaluated and compared for various ...