Precise Error Performance of BPSK Modulated Coherent Terahertz Wireless LOS Links with Pointing Errors

One of the key advantages of terahertz (THz) communication is its potential for energy efficiency, making it an attractive option for green communication systems. Coherent THz transmission technology has recently been explored in the literature. However, there exist few error performance results for...

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Bibliographic Details
Published inEntropy (Basel, Switzerland) Vol. 26; no. 8; p. 706
Main Authors Niu, Mingbo, Ji, Ruihang, Wang, Hucheng, Liu, Huan
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2024
MDPI
Subjects
Analysis
Antennas
Asymptotic methods
Atmospheric turbulence
Binary phase shift keying
Bit error rate
Clean energy
Coherent states
coherent THz
Communications networks
Communications systems
Energy consumption
Energy efficiency
Error analysis
Error-correcting codes
Line of sight communication
Links
Methods
Mobile communication systems
outage probability
Phase modulation
pointing errors
Propagation
Random variables
Receivers & amplifiers
Signal to noise ratio
Spectrum allocation
Terahertz frequencies
Terahertz radiation
Transmitters
Turbulence models
Wireless communication systems
Wireless communications
China
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Summary:One of the key advantages of terahertz (THz) communication is its potential for energy efficiency, making it an attractive option for green communication systems. Coherent THz transmission technology has recently been explored in the literature. However, there exist few error performance results for such a wireless link employing coherent THz technology. In this paper, we explore a comprehensive terrestrial channel model designed for wireless line-of-sight communication using THz frequencies. The performance of coherent THz links is analyzed, and it is found to be notably affected by two significant factors, atmospheric turbulence and pointing errors. These could occur between the terahertz transmitter and receiver in terrestrial links. The exact and asymptotic solutions are derived for bit error rate and interrupt probability for binary phase-shift keying coherent THz systems, respectively, over log-normal and Gamma–Gamma turbulent channels. The asymptotic outage probability analysis is also performed. It is shown that the presented results offer a precise estimation of coherent THz transmission performance and its link budget.
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ISSN:1099-4300
1099-4300
DOI:10.3390/e26080706