Analyzing Relative Humidity and BER Relation in Terahertz VANET Using BCH Coding

Data traffic is increasing dramatically as a result of the quick development of electronic gadgets and different new applications. To fulfill the demand of high data rate, higher frequency bands are being examined for communications. Future communication will be led by the Terahertz (THz). The THz waves are susceptible to propagation and atmospheric absorption characteristics. Achieving ultra-reliability to support critical safety applications in Vehicular Ad-hoc Network (VANET) is challenging. So new coding schemes or modifying conventional coding techniques need to be introduced. This article aims to provide a channel model for Terahertz (THz) VANET communication in which the performance of Bose-Chaudhuri-Hocquenghem (BCH) coding is investigated and the relation between Relative Humidity (RH) and BER is analyzed. The closed-form equations BCH coding and Alamouti Space-Time Block Coding (BCH-ASTBC) BER derived in our previous study are used for analysis. Our results interpret that there is a strong dependence of BER on RH. The results are analyzed at different code rates. Moreover, we have compared our results with the performance of orthodox ASTBC expression in THz channel. The results depict that the proposed model surpasses the behavior of the ASTBC equation in THz. This research provides the guidelines for estimating the BER in error control coding and a road map to design various VANET architectures in THz channel.