Design and Analysis of Multi-User Faster-Than-Nyquist-DCSK Communication Systems over Multi-Path Fading Channels
In this paper, we present a new multi-user chaos-based communication system using Faster-than-Nyquist sampling to achieve higher data rates and lower energy consumption. The newly designed system, designated Multi-user Faster Than Nyquist Differential Chaos Shift Keying (MU-FTN-DCSK), uses the tradi...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/20/7837 |
| _version_ | 1797470022469156864 |
|---|---|
| author | Mohamed Dawa Marijan Herceg Georges Kaddoum |
| author_facet | Mohamed Dawa Marijan Herceg Georges Kaddoum |
| author_sort | Mohamed Dawa |
| collection | DOAJ |
| description | In this paper, we present a new multi-user chaos-based communication system using Faster-than-Nyquist sampling to achieve higher data rates and lower energy consumption. The newly designed system, designated Multi-user Faster Than Nyquist Differential Chaos Shift Keying (MU-FTN-DCSK), uses the traditional structure of Differential Chaos Shift Keying (DCSK) communication systems in combination with a filtering system that goes below the Nyquist limit for data sampling. The system is designed to simultaneously enable transmissions from multiple users through multiple sampling rates resulting in semi-orthogonal transmissions. The design, performance analysis, and experimental results of the MU-FTN-DCSK system are presented to demonstrate the utility of the newly proposed system in enabling multi-user communications and enhancing the spectral efficiency of the basic DCSK design without the addition of new blocks. The MU-FTN-DCSK system presented in this paper demonstrates spectral gains for one user of up to 23% and a combined gain of 25% for four (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>U</mi><mo>=</mo><mn>4</mn></mrow></semantics></math></inline-formula>) users. In this paper, we present a proof of concept demonstrating a new degree of freedom in the design of Chaos-based communication systems and their improvement in providing wireless transmissions without complicated signal processing tools or advanced hardware designs. |
| first_indexed | 2024-03-09T19:30:52Z |
| format | Article |
| id | doaj.art-976750bdd2de4acb9aa5dad992acd7ea |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T19:30:52Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-976750bdd2de4acb9aa5dad992acd7ea2023-11-24T02:27:02ZengMDPI AGSensors1424-82202022-10-012220783710.3390/s22207837Design and Analysis of Multi-User Faster-Than-Nyquist-DCSK Communication Systems over Multi-Path Fading ChannelsMohamed Dawa0Marijan Herceg1Georges Kaddoum2ETS, LaCIME Laboratory, University of Québec, 1100 Notre-Dame West, Montreal, QC H3C 1K3, CanadaDepartment of Communications, Faculty of Electrical Engineering, Computer Science and Information Technology, 31000 Osijek, CroatiaETS, LaCIME Laboratory, University of Québec, 1100 Notre-Dame West, Montreal, QC H3C 1K3, CanadaIn this paper, we present a new multi-user chaos-based communication system using Faster-than-Nyquist sampling to achieve higher data rates and lower energy consumption. The newly designed system, designated Multi-user Faster Than Nyquist Differential Chaos Shift Keying (MU-FTN-DCSK), uses the traditional structure of Differential Chaos Shift Keying (DCSK) communication systems in combination with a filtering system that goes below the Nyquist limit for data sampling. The system is designed to simultaneously enable transmissions from multiple users through multiple sampling rates resulting in semi-orthogonal transmissions. The design, performance analysis, and experimental results of the MU-FTN-DCSK system are presented to demonstrate the utility of the newly proposed system in enabling multi-user communications and enhancing the spectral efficiency of the basic DCSK design without the addition of new blocks. The MU-FTN-DCSK system presented in this paper demonstrates spectral gains for one user of up to 23% and a combined gain of 25% for four (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>U</mi><mo>=</mo><mn>4</mn></mrow></semantics></math></inline-formula>) users. In this paper, we present a proof of concept demonstrating a new degree of freedom in the design of Chaos-based communication systems and their improvement in providing wireless transmissions without complicated signal processing tools or advanced hardware designs.https://www.mdpi.com/1424-8220/22/20/7837chaos-based communication systemsdifferential chaos shift keyingFaster-Than-Nyquistinterferencemulti-usersampling rate |
| spellingShingle | Mohamed Dawa Marijan Herceg Georges Kaddoum Design and Analysis of Multi-User Faster-Than-Nyquist-DCSK Communication Systems over Multi-Path Fading Channels Sensors chaos-based communication systems differential chaos shift keying Faster-Than-Nyquist interference multi-user sampling rate |
| title | Design and Analysis of Multi-User Faster-Than-Nyquist-DCSK Communication Systems over Multi-Path Fading Channels |
| title_full | Design and Analysis of Multi-User Faster-Than-Nyquist-DCSK Communication Systems over Multi-Path Fading Channels |
| title_fullStr | Design and Analysis of Multi-User Faster-Than-Nyquist-DCSK Communication Systems over Multi-Path Fading Channels |
| title_full_unstemmed | Design and Analysis of Multi-User Faster-Than-Nyquist-DCSK Communication Systems over Multi-Path Fading Channels |
| title_short | Design and Analysis of Multi-User Faster-Than-Nyquist-DCSK Communication Systems over Multi-Path Fading Channels |
| title_sort | design and analysis of multi user faster than nyquist dcsk communication systems over multi path fading channels |
| topic | chaos-based communication systems differential chaos shift keying Faster-Than-Nyquist interference multi-user sampling rate |
| url | https://www.mdpi.com/1424-8220/22/20/7837 |
| work_keys_str_mv | AT mohameddawa designandanalysisofmultiuserfasterthannyquistdcskcommunicationsystemsovermultipathfadingchannels AT marijanherceg designandanalysisofmultiuserfasterthannyquistdcskcommunicationsystemsovermultipathfadingchannels AT georgeskaddoum designandanalysisofmultiuserfasterthannyquistdcskcommunicationsystemsovermultipathfadingchannels |