JSCC-Cast: A Joint Source Channel Coding Video Encoding and Transmission System with Limited Digital Metadata
This work considers the design and practical implementation of JSCC-Cast, a comprehensive analog video encoding and transmission system requiring a reduced amount of digital metadata. Suitable applications for JSCC-Cast are multicast transmissions over time-varying channels and Internet of Things wi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/21/18/6208 |
| _version_ | 1797517203516424192 |
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| author | Jose Balsa Óscar Fresnedo José A. García-Naya Tomás Domínguez-Bolaño Luis Castedo |
| author_facet | Jose Balsa Óscar Fresnedo José A. García-Naya Tomás Domínguez-Bolaño Luis Castedo |
| author_sort | Jose Balsa |
| collection | DOAJ |
| description | This work considers the design and practical implementation of JSCC-Cast, a comprehensive analog video encoding and transmission system requiring a reduced amount of digital metadata. Suitable applications for JSCC-Cast are multicast transmissions over time-varying channels and Internet of Things wireless connectivity of end devices having severe constraints on their computational capabilities. The proposed system exhibits a similar image quality compared to existing analog and hybrid encoding alternatives such as Softcast. Its design is based on the use of linear transforms that exploit the spatial and temporal redundancy and the analog encoding of the transformed coefficients with different protection levels depending on their relevance. JSCC-Cast is compared to Softcast, which is considered the benchmark for analog and hybrid video coding, and with an all-digital H.265-based encoder. The results show that, depending on the scenario and considering image quality metrics such as the structural similarity index measure, the peak signal-to-noise ratio, and the perceived quality of the video, JSCC-Cast exhibits a performance close to that of Softcast but with less metadata and not requiring a feedback channel in order to track channel variations. Moreover, in some circumstances, the JSCC-Cast obtains a perceived quality for the frames comparable to those displayed by the digital one. |
| first_indexed | 2024-03-10T07:13:29Z |
| format | Article |
| id | doaj.art-66b68be214db4cbabab805ca19671886 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T07:13:29Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-66b68be214db4cbabab805ca196718862023-11-22T15:13:26ZengMDPI AGSensors1424-82202021-09-012118620810.3390/s21186208JSCC-Cast: A Joint Source Channel Coding Video Encoding and Transmission System with Limited Digital MetadataJose Balsa0Óscar Fresnedo1José A. García-Naya2Tomás Domínguez-Bolaño3Luis Castedo4CITIC Research Center, Department of Computer Engineering, University of A Coruña, 15008 A Coruña, SpainCITIC Research Center, Department of Computer Engineering, University of A Coruña, 15008 A Coruña, SpainCITIC Research Center, Department of Computer Engineering, University of A Coruña, 15008 A Coruña, SpainCITIC Research Center, Department of Computer Engineering, University of A Coruña, 15008 A Coruña, SpainCITIC Research Center, Department of Computer Engineering, University of A Coruña, 15008 A Coruña, SpainThis work considers the design and practical implementation of JSCC-Cast, a comprehensive analog video encoding and transmission system requiring a reduced amount of digital metadata. Suitable applications for JSCC-Cast are multicast transmissions over time-varying channels and Internet of Things wireless connectivity of end devices having severe constraints on their computational capabilities. The proposed system exhibits a similar image quality compared to existing analog and hybrid encoding alternatives such as Softcast. Its design is based on the use of linear transforms that exploit the spatial and temporal redundancy and the analog encoding of the transformed coefficients with different protection levels depending on their relevance. JSCC-Cast is compared to Softcast, which is considered the benchmark for analog and hybrid video coding, and with an all-digital H.265-based encoder. The results show that, depending on the scenario and considering image quality metrics such as the structural similarity index measure, the peak signal-to-noise ratio, and the perceived quality of the video, JSCC-Cast exhibits a performance close to that of Softcast but with less metadata and not requiring a feedback channel in order to track channel variations. Moreover, in some circumstances, the JSCC-Cast obtains a perceived quality for the frames comparable to those displayed by the digital one.https://www.mdpi.com/1424-8220/21/18/6208analog processinganalog video encodinganalog video transmissionjoint source-channel encoding |
| spellingShingle | Jose Balsa Óscar Fresnedo José A. García-Naya Tomás Domínguez-Bolaño Luis Castedo JSCC-Cast: A Joint Source Channel Coding Video Encoding and Transmission System with Limited Digital Metadata Sensors analog processing analog video encoding analog video transmission joint source-channel encoding |
| title | JSCC-Cast: A Joint Source Channel Coding Video Encoding and Transmission System with Limited Digital Metadata |
| title_full | JSCC-Cast: A Joint Source Channel Coding Video Encoding and Transmission System with Limited Digital Metadata |
| title_fullStr | JSCC-Cast: A Joint Source Channel Coding Video Encoding and Transmission System with Limited Digital Metadata |
| title_full_unstemmed | JSCC-Cast: A Joint Source Channel Coding Video Encoding and Transmission System with Limited Digital Metadata |
| title_short | JSCC-Cast: A Joint Source Channel Coding Video Encoding and Transmission System with Limited Digital Metadata |
| title_sort | jscc cast a joint source channel coding video encoding and transmission system with limited digital metadata |
| topic | analog processing analog video encoding analog video transmission joint source-channel encoding |
| url | https://www.mdpi.com/1424-8220/21/18/6208 |
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