Performance analysis of LDPC codes on OOK terahertz wireless channels  

作　　者：刘纯 王长 曹俊诚 

机构地区：[1]Key Laboratory of Terahertz Solid-State Technology, Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Science

出　　处：《Chinese Physics B》2016年第2期553-557,共5页中国物理B（英文版）

基　　金：Project supported by the National Key Basic Research Program of China(Grant No.2014CB339803);the National High Technology Research and Development Program of China(Grant No.2011AA010205);the National Natural Science Foundation of China(Grant Nos.61131006,61321492,and 61204135);the Major National Development Project of Scientific Instrument and Equipment(Grant No.2011YQ150021);the National Science and Technology Major Project(Grant No.2011ZX02707);the International Collaboration and Innovation Program on High Mobility Materials Engineering of the Chinese Academy of Sciences;the Shanghai Municipal Commission of Science and Technology(Grant No.14530711300)

摘　　要：Atmospheric absorption, scattering, and scintillation are the major causes to deteriorate the transmission quality of terahertz（THz） wireless communications. An error control coding scheme based on low density parity check（LDPC） codes with soft decision decoding algorithm is proposed to improve the bit-error-rate（BER） performance of an on-off keying（OOK） modulated THz signal through atmospheric channel. The THz wave propagation characteristics and channel model in atmosphere is set up. Numerical simulations validate the great performance of LDPC codes against the atmospheric fading and demonstrate the huge potential in future ultra-high speed beyond Gbps THz communications.Atmospheric absorption, scattering, and scintillation are the major causes to deteriorate the transmission quality of terahertz（THz） wireless communications. An error control coding scheme based on low density parity check（LDPC） codes with soft decision decoding algorithm is proposed to improve the bit-error-rate（BER） performance of an on-off keying（OOK） modulated THz signal through atmospheric channel. The THz wave propagation characteristics and channel model in atmosphere is set up. Numerical simulations validate the great performance of LDPC codes against the atmospheric fading and demonstrate the huge potential in future ultra-high speed beyond Gbps THz communications.

关 键 词：terahertz wireless channels low density parity check codes atmospheric turbulence gamma-gamma models 

分 类 号：TN911.22[电子电信—通信与信息系统] O441.4[电子电信—信息与通信工程]