Sürdürülebilir Kalkınma Amaçları

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Yazarlar

• Albayrak, Cenk(1)
• Hasırcı Tuğcu, Zeynep(1)
• Herencsar, N.(1)
• Kuzulugil, Kenan(1)
• Simsek, Cemaleddin(1)
• Tugcu, Emin(1)
• Turk, Kadir(1)
• Yazgan, Ayhan(1)
• Çavdar, İsmail Hakkı(1)

• MakaleAçık Erişim2024Scopus SJRQ1/r/gumushane/13932
  Measurement-based V2V propagation modeling in highway, suburban, and urban environments

  Hasırcı Tuğcu, Zeynep; Kuzulugil, Kenan; Çavdar, İsmail Hakkı

  Vehicle-to-vehicle (V2V) communication is one of the promising communication applications designed to optimize traffic conditions and has played a crucial role in the improvement of intelligent transportation technologies. Since there is still some uncertainty regarding generalized models that provide a more accurate representation of propagation environments, the existing literature emphasizes the need for additional experimental studies in various countries and propagation environments. This study aims to investigate the low-density and high-density characteristics of V2V channels for highway, suburban, and urban propagation environments in Türkiye. Thus, first, channel measurements were conducted for all propagation scenarios. Then, after the estimation of path loss parameters, the best-fitted path loss model was determined for each propagation scenario by comparing log-distance, two-ray, and log-ray models. It was observed that the log-ray model offered remarkably better performance than the two-ray model, especially in the majority of scenarios with two-ray characteristics. In addition, small-scale modeling and shadowing were also examined, and the outcomes were compared to relevant literature. Last, generalized path loss models were developed for six propagation scenarios and compared with previous studies. Providing additional experimental data on the impact of traffic and road environments that vary across countries on the V2V channel, this study not only validated and compared existing propagation models but also improved the representing accuracy and generalizability of the newly proposed propagation models. Here, all findings were presented in detail to support the motivation of the research.

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  AtıfScopus11·WoS11·OpenAlex9

  İncele
• BildiriYalnız künye2018/r/gumushane/15056
  Experimental Channel Measurement for Indoor Office Visible Light Communication

  Yazgan, Ayhan; Simsek, Cemaleddin; Albayrak, Cenk; Tugcu, Emin; Turk, Kadir; Herencsar, N.

  Channel measurement for visible light communication (VLC) is theoretically and experimentally performed in a real office platform. Six armatures composed of phosphor based white LED arrays are fed by designed analog LED drivers. Measurements are taken in a 6m x 7.8m office room which is formed as 10×13 matrix with 60 cm grid distance for both simulation and experiment studies. The link distance between LED arrays and optical receiver is kept minimum 2.5 meters for each measurement. Experimental results are generally in good agreement with simulation results, which are obtained using Barry's theoretical channel model.

  AtıfScopus3·OpenAlex4

  İncele