{"title":"On the Impact of Hardware Impairments in Noncoherent Massive MIMO Systems","authors":"S. Bucher, G. Yammine, R. Fischer, C. Waldschmidt","doi":"10.18725/OPARU-36680","DOIUrl":"https://doi.org/10.18725/OPARU-36680","url":null,"abstract":"","PeriodicalId":355511,"journal":{"name":"International ITG Workshop on Smart Antennas","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133772072","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}
Thomas Kühne, Xiaoshen Song, G. Caire, K. Rasilainen, T. H. Le, Marco Rossi, I. Ndip, C. Fager
Millimeter-wave systems are the next step to increase the data rate of 5G mobile communication networks. Hybrid analog-digital beamforming is one of the core technologies to enable millimeter-wave communication. Both the theoretical basics and the hardware design have been investigated in recent years. Current research projects like the European SERENA project strive to develop platforms to demonstrate the performance gain of complete systems. We present a simulation based analysis of a planned proof-of-concept system to evaluate the influence of design decisions and hardware impairments. We use a geometry-based stochastic channel simulator and simulate both certain hardware aspects and signal processing parts. We focus on the signal processing parts directly related to the hybrid architecture used for multi user MIMO precoding like the initial link acquisition and the data precoding. We use our own state-of-the-art algorithms for these parts.
{"title":"Performance Simulation of a 5G Hybrid Beamforming Millimeter-Wave System","authors":"Thomas Kühne, Xiaoshen Song, G. Caire, K. Rasilainen, T. H. Le, Marco Rossi, I. Ndip, C. Fager","doi":"10.5281/ZENODO.3697751","DOIUrl":"https://doi.org/10.5281/ZENODO.3697751","url":null,"abstract":"Millimeter-wave systems are the next step to increase the data rate of 5G mobile communication networks. Hybrid analog-digital beamforming is one of the core technologies to enable millimeter-wave communication. Both the theoretical basics and the hardware design have been investigated in recent years. Current research projects like the European SERENA project strive to develop platforms to demonstrate the performance gain of complete systems. We present a simulation based analysis of a planned proof-of-concept system to evaluate the influence of design decisions and hardware impairments. We use a geometry-based stochastic channel simulator and simulate both certain hardware aspects and signal processing parts. We focus on the signal processing parts directly related to the hybrid architecture used for multi user MIMO precoding like the initial link acquisition and the data precoding. We use our own state-of-the-art algorithms for these parts.","PeriodicalId":355511,"journal":{"name":"International ITG Workshop on Smart Antennas","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121206043","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 : 2018-08-27DOI: 10.1007/978-3-030-05873-9_26
Shanshan Wang, M. Renzo, Xiaojun Xi
{"title":"Modeling Spatially-Correlated Cellular Networks by Using Inhomogeneous Poisson Point Processes","authors":"Shanshan Wang, M. Renzo, Xiaojun Xi","doi":"10.1007/978-3-030-05873-9_26","DOIUrl":"https://doi.org/10.1007/978-3-030-05873-9_26","url":null,"abstract":"","PeriodicalId":355511,"journal":{"name":"International ITG Workshop on Smart Antennas","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134149598","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}
In multi-user massive MIMO uplink systems, noncoherent detection schemes offer an appealing alternative to classical coherent detection algorithms. Sorted decision-feedback differential detection (DFDD) in combination with noncoherent decision-feedback equalization (nDFE) over the users have been demonstrated to achieve comparable results to the coherent case. Up to now, the assessment of noncoherent detection has been performed on the basis of an idealized channel model. In this paper, the influence of channel parameters on the performance of noncoherent massive MIMO systems is analyzed via an extensive simulation study. Thereby, a realistic channel model, in particular the COST 2100 channel model, forms the basis for the evaluation. It is shown that performance is highly dependent on the actual channel settings as well as on the power control of the transmitter. A further outcome is that the idealized channel model in previous studies ignores correlation effects and exhibits other power distributions among the receiving antennas. As a consequence, further optimization steps for noncoherent detection are required.
{"title":"Influence of Channel Parameters on Noncoherent Massive MIMO Systems","authors":"S. Bucher, G. Yammine, R. Fischer, C. Waldschmidt","doi":"10.18725/OPARU-6201","DOIUrl":"https://doi.org/10.18725/OPARU-6201","url":null,"abstract":"In multi-user massive MIMO uplink systems, noncoherent detection schemes offer an appealing alternative to classical coherent detection algorithms. Sorted decision-feedback differential detection (DFDD) in combination with noncoherent decision-feedback equalization (nDFE) over the users have been demonstrated to achieve comparable results to the coherent case. Up to now, the assessment of noncoherent detection has been performed on the basis of an idealized channel model. In this paper, the influence of channel parameters on the performance of noncoherent massive MIMO systems is analyzed via an extensive simulation study. Thereby, a realistic channel model, in particular the COST 2100 channel model, forms the basis for the evaluation. It is shown that performance is highly dependent on the actual channel settings as well as on the power control of the transmitter. A further outcome is that the idealized channel model in previous studies ignores correlation effects and exhibits other power distributions among the receiving antennas. As a consequence, further optimization steps for noncoherent detection are required.","PeriodicalId":355511,"journal":{"name":"International ITG Workshop on Smart Antennas","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117172503","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 : 1993-09-22DOI: 10.1007/3-540-57264-3_34
R. Glück, A. Klimov
{"title":"Occam's Razor in Metacompuation: the Notion of a Perfect Process Tree","authors":"R. Glück, A. Klimov","doi":"10.1007/3-540-57264-3_34","DOIUrl":"https://doi.org/10.1007/3-540-57264-3_34","url":null,"abstract":"","PeriodicalId":355511,"journal":{"name":"International ITG Workshop on Smart Antennas","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116520428","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 : 1993-09-22DOI: 10.1007/3-540-57264-3_39
Didier Bert, R. Echahed, Bjarte M. Østvold
{"title":"Abstract Rewriting","authors":"Didier Bert, R. Echahed, Bjarte M. Østvold","doi":"10.1007/3-540-57264-3_39","DOIUrl":"https://doi.org/10.1007/3-540-57264-3_39","url":null,"abstract":"","PeriodicalId":355511,"journal":{"name":"International ITG Workshop on Smart Antennas","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130226228","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 : 1993-09-22DOI: 10.1007/3-540-57264-3_44
Shohei Kato, H. Seki, H. Itoh
{"title":"An Efficient Abductive Reasoning System Based on Program Analysis","authors":"Shohei Kato, H. Seki, H. Itoh","doi":"10.1007/3-540-57264-3_44","DOIUrl":"https://doi.org/10.1007/3-540-57264-3_44","url":null,"abstract":"","PeriodicalId":355511,"journal":{"name":"International ITG Workshop on Smart Antennas","volume":"301 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132583397","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 : 1993-09-22DOI: 10.1007/3-540-57264-3_29
Jean-Claude Fernandez
{"title":"Abstract Interpretation and Verification of Reactive Systems","authors":"Jean-Claude Fernandez","doi":"10.1007/3-540-57264-3_29","DOIUrl":"https://doi.org/10.1007/3-540-57264-3_29","url":null,"abstract":"","PeriodicalId":355511,"journal":{"name":"International ITG Workshop on Smart Antennas","volume":" 1032","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131977366","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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