Physical layer secrecy of a cognitive radio with spatially correlated Alamouti OSTBC system

Torabi, Mohammad; Haccoun, D.

doi:10.1016/j.phycom.2022.101819

Cited by 1 publication

(1 citation statement)

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“…Rayleigh fading occurs when wireless signals propagate in complex wireless channels, and the fading characteristics differ in various spatial positions. If the distance between two positions exceeds the correlation distance between the antennas (typically more than 10 signal wavelengths apart), the two signals are considered entirely unrelated (Torabi & Haccoun, 2022;Mukhtar & Begh, 2022). Consequently, spatial diversity reception of signals can be achieved.…”

Section: Introduction To Alamouti Code Principlementioning

confidence: 99%

Design of Multi-Domain Joint Coding Scheme Based on Circular Mapping

LUO,

CHEN

2023

Preprint

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With the rapid development of wireless communication technology and the increasing demand for communication quality in various fields, spread spectrum communication (SSC) and multiple input multiple output (MIMO) technology have become crucial research directions in the field of military communication, and space-time block coding (STBC) is an indispensable key technology in MIMO systems. This paper combined the excellent instrument interaction ability of LABVIEW and the data processing ability of MATLAB to build a direct sequence spread spectrum-space time block coding (DSSS-STBC) model based on circular mapping (CM) spread spectrum code, aiming at realizing multi-domain joint transmission of information in space, time, and power domains. The results demonstrated that the joint simulation platform of LABVIEW and MATLAB/Simulink successfully confirmed the superior spread spectrum performance of chaotic spreading codes based on circular mapping compared to traditional spreading codes. In addition, the multi-domain joint coding combining DSSS and STBC significantly enhanced the reliability and interference resistance of the communication system.

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Section: Introduction To Alamouti Code Principlementioning

confidence: 99%