Device-to-Device (D2D) communication in Terahertz (THz) frequency band

Abstract

In recent time the numbers of cellular devices are increasing very rapidly, as a result effective communication network through fifth generation network device to device (D2D) system plays a vital role in wireless communication medium. The D2D communication in THz frequency band is more effective than other frequency band as it is more energy efficient and reduces the communication delay. In this thesis, we have discussed the theoretical model of terahertz frequency band in D2D communication technology. Furthermore, we develop the mathematical expression of data rate, outage probability and energy efficiency for deterministic network and also the mathematical expression of throughput, delay sensitive area spectral efficiency (DSE) for random network. The simulation results show a good improvement in increasing data rate and energy efficiency as well as decreasing the outage probability of D2D communication in terahertz frequency band. For the transmission power of 36 dBm, energy efficiency increases by 8.18% when separation distance between transmitter and receiver are 0.01 km and 0.5 km, respectively. In terms of optimal power transmission of DSE for increasing SINR threshold from 100 dBm to 105 dBm at code rate value 9 npcu, DSE increase by 43.7%.