Reconfigurable intelligent surface (RIS) is famous for high energy-efficiency and treated as one of the potential technologies for green network. We analyze the performance of RIS-assisted vehicular network at urban intersections under Weibull fading. We derive expressions for the outage probability, the average achievable rate and the average symbol error probability. Simulation results show that the performance of the communication system can be improved by increasing the number of reflective elements. In addition, the theoretical results that we derive agree well with the Monte Carlo simulations, which proves the correctness of our derivation. It is enlightening that the performance of the communication system can be improved by adequately deploying RIS when the direct path is blocked.
In this work, we demonstrate a green light in-plane communication system at 557 nm through a monolithic integration of two same structure MQWs devices-LED and PD, and waveguides on a GaN-on-Si wafer with InGaN/GaN superlattice layer. The MQW structures are responsible for the emission in the LED and photodetection in the PD. In addition, the device have the ability of luminescing and detecting simultaneously in quantum wells. The front side of device is completed by using e-beam evaporation, photolithography, etching. Since Si substrate is unfavorable for optical transmission due to strong visible light absorption. One last step is stripping of the Si substrate to increase the signal intensity received at the receiving side. As on-chip free-space transmission is hard to achieve due to the omnidirectional emission of LED, the installation of waveguides between LED and PD is beneficial for efficient transmission of optical signals. The optical and electrical properties of this communication system are characterized through series of measurement. To practically cognize the ability of transmission of the communication system, we use the system achieveing an in-panle transmission of PRBS signals modulated by non-return-to-zero on-off-keying (NRZ-OOK) at the speed of 10 Mbps, then analyze the result and the influence of other system factors such as resistive-capacitive (RC) time constant and junction capacitance of the receiver. According to the analysis of results, the system is able to transmitted and received PRBS signals at a rate of 10 Mbps.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.