Pub Date : 2018-07-01DOI: 10.1109/cce.2018.8465713
{"title":"ICCE 2018 Preface","authors":"","doi":"10.1109/cce.2018.8465713","DOIUrl":"https://doi.org/10.1109/cce.2018.8465713","url":null,"abstract":"","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"06 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127369348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-01DOI: 10.1109/CCE.2018.8465735
S. Pham, Franck Russel Kuipou, S. Arbanowski, S. Steglich
Over-the-top (OTT) media delivery or internet video streaming subscription services like Netflix and Amazon have become highly successful. Broadcasters and telecommunication companies are increasingly investing in creating video streaming platforms. This paper gives an overview of current media streaming and content protection standards. One of the main challenges for commercial content providers is to stream to as many devices (mobile, desktop, TV, etc.) as possible. Standards such as MPEG-DASH or HLS and related standards help to achieve this in an efficient and interoperable way. On the device side, different application platforms exist with different playback models. In order to distribute premium content, Digital Rights Management (DRM) systems are needed to protect the media streams. Using only one DRM system to protect the content is not enough to reach all relevant devices, because a platform or device is usually tied to the vendor’s DRM. As a result, a multi-DRM ecosystem is needed for OTT delivery in order to protect content with more than one DRM system - the MPEG Common Encryption (CENC) standard enables this. In a multi-DRM backend, different entities exist that exchange sensitive metadata such as DRM-specific information and encryption keys. This communication can be interoperable following the Content Protection Information Exchange Format (CPIX) specification by the DASH-IF.
{"title":"On the current state of interoperable content protection for internet video streaming","authors":"S. Pham, Franck Russel Kuipou, S. Arbanowski, S. Steglich","doi":"10.1109/CCE.2018.8465735","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465735","url":null,"abstract":"Over-the-top (OTT) media delivery or internet video streaming subscription services like Netflix and Amazon have become highly successful. Broadcasters and telecommunication companies are increasingly investing in creating video streaming platforms. This paper gives an overview of current media streaming and content protection standards. One of the main challenges for commercial content providers is to stream to as many devices (mobile, desktop, TV, etc.) as possible. Standards such as MPEG-DASH or HLS and related standards help to achieve this in an efficient and interoperable way. On the device side, different application platforms exist with different playback models. In order to distribute premium content, Digital Rights Management (DRM) systems are needed to protect the media streams. Using only one DRM system to protect the content is not enough to reach all relevant devices, because a platform or device is usually tied to the vendor’s DRM. As a result, a multi-DRM ecosystem is needed for OTT delivery in order to protect content with more than one DRM system - the MPEG Common Encryption (CENC) standard enables this. In a multi-DRM backend, different entities exist that exchange sensitive metadata such as DRM-specific information and encryption keys. This communication can be interoperable following the Content Protection Information Exchange Format (CPIX) specification by the DASH-IF.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126818810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-07-01DOI: 10.1109/CCE.2018.8465761
M. Pätzold, C. Gutiérrez
This paper deals with the modelling of non-wide-sense stationary uncorrelated scattering (non-WSSUS) channels in which the angles of arrival (AOAs), Doppler frequencies, and propagation delays vary with time. Starting from a geometrical model in which the mobile station (MS) travels along a predefined path with time-variant velocity, it is shown how the parameters of the non-WSSUS model can be computed analytically assuming that the scatterers are fixed. One of the key results of our analysis is that the time-variant Doppler frequencies and the time-variant propagation delays of WSSUS and non-WSSUS channels are connected by a fundamental relationship. Furthermore, the time-variant channel transfer function of the non-WSSUS channel model is derived. In addition, general expressions are presented for the correlation functions in the time and frequency domains. Moreover, it is shown that the proposed non-WSSUS channel model is consistent w.r.t. the mean Doppler shift, Doppler spread, mean propagation delay, and delay spread. The proposed concept is of fundamental importance for the design of physically sound wideband channel models under non-stationary propagation conditions.
{"title":"Modelling of Non-WSSUS Channels with Time-Variant Doppler and Delay Characteristics","authors":"M. Pätzold, C. Gutiérrez","doi":"10.1109/CCE.2018.8465761","DOIUrl":"https://doi.org/10.1109/CCE.2018.8465761","url":null,"abstract":"This paper deals with the modelling of non-wide-sense stationary uncorrelated scattering (non-WSSUS) channels in which the angles of arrival (AOAs), Doppler frequencies, and propagation delays vary with time. Starting from a geometrical model in which the mobile station (MS) travels along a predefined path with time-variant velocity, it is shown how the parameters of the non-WSSUS model can be computed analytically assuming that the scatterers are fixed. One of the key results of our analysis is that the time-variant Doppler frequencies and the time-variant propagation delays of WSSUS and non-WSSUS channels are connected by a fundamental relationship. Furthermore, the time-variant channel transfer function of the non-WSSUS channel model is derived. In addition, general expressions are presented for the correlation functions in the time and frequency domains. Moreover, it is shown that the proposed non-WSSUS channel model is consistent w.r.t. the mean Doppler shift, Doppler spread, mean propagation delay, and delay spread. The proposed concept is of fundamental importance for the design of physically sound wideband channel models under non-stationary propagation conditions.","PeriodicalId":118716,"journal":{"name":"2018 IEEE Seventh International Conference on Communications and Electronics (ICCE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125818430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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