Performance analysis of LDPC codes on OOK terahertz wireless channels

doi:10.1088/1674-1056/25/2/028702

Abstract

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.

Keywords: terahertz wireless channels low density parity check codes atmospheric turbulence gamma-gamma models

Received: 28 July 2015
Revised: 21 October 2015
Accepted manuscript online:

PACS:	87.19.ls	(Encoding, decoding, and transformation)
	42.79.Sz	(Optical communication systems, multiplexers, and demultiplexers?)
	42.68.Ay	(Propagation, transmission, attenuation, and radiative transfer)

Fund:

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, and the Shanghai Municipal Commission of Science and Technology (Grant No. 14530711300).

Corresponding Authors: Chang Wang
E-mail: cwang@mail.sim.ac.cn

Cite this article:

Chun Liu(刘纯), Chang Wang(王长), Jun-Cheng Cao(曹俊诚) Performance analysis of LDPC codes on OOK terahertz wireless channels 2016 Chin. Phys. B 25 028702

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