برمجه ماتلاب ل visible light communication &ACO-OFdm

هندسة البرمجيات برمجة تطوير البرمجيات برمجة أندرويد برمجة التطبيقات هندسة البرمجيات برمجة تطوير البرمجيات برمجة أندرويد برمجة التطبيقات

تطبيق مقاله علميه عن Handover Strategy of Heterogeneous Network Based on the Dwell Time of .Communication Blind Area رسم visible light intensity distribution Visible light sNr distribution Visible BER distribution بالماتلاب جزء خاص بال handover handover failure probability this paper proposes a horizontal-vertical collaborative switching strategy based on the residency time of the communication blind area. Firstly, we use asymmetrically clipped optical OFDM (ACO-OFDM) for signal processing to reduce the bit error rate (BER) of the system by reducing the multipath interference generated during signal transmission.Secondly, the BER is used to determine the communication blind area and to calculate its dwell time. Finally, the threshold time is set as the channel interruption time in the communication blind zone, and the horizontal-vertical cooperative switching is performed by comparing with the dwell time. The simulation results show that the average network throughput is 195.28Mbps, and the average number of handovers is 1.35. Compared with instant vertical handover (IVHO) scheme and dwell vertical handover (DVHO) scheme, the average network throughput is improved by 37.21% and 28.45%, respectively, and the average switching times are reduced by 28.05% and 5.27%, respectively.