Optical Wireless Link Budget Analysis for Optical Wireless Communication Networks

Power link budgets are prepared for wireless optical communication systems to illustrate the optical losses that happens during transmission. This paper has presented optical wireless links which offer ultra multi gigabit per second data rates and low system complexity. For ground space and or terrestrial communication systems, these links suffer from atmospheric loss mainly due to fog, and scintillation. Optical wireless links provide high bandwidth solution to the last mile access bottleneck. However, an appreciable availability of the link is always a concern. Wireless optical links are highly weather dependent and fog is the major attenuating factor reducing the link availability. Link margin, received signal power, transmission bit rate, bit rate distance product, signal to noise ratio (SNR), and bit error rate (BER) are the major interesting design parameters in the current study.