Millimeter wave and UWB propagation for high throughput indoor communications
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Sähkötekniikan korkeakoulu |
Doctoral thesis (article-based)
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Authors
Date
2011
Major/Subject
Mcode
Degree programme
Language
en
Pages
Verkkokirja (1266 KB, 48 s.)
Series
Aalto University publication series DOCTORAL DISSERTATIONS ,
97/2011
Abstract
Millimeter-wave systems at 60 GHz and ultra-wideband (UWB) systems in the microwave range of 3-10 GHz have been received with great interest for their high data rate wireless communications. In design, test and optimization of future wireless systems, channel models featuring the relevant characteristics of radiowave propagation are required. Furthermore, detailed understanding of the propagation channel and its interaction with system, creates insights into possible solutions. In this work, both theoretical (ray-tracing) and statistical models of the 60 GHz and UWB channels are studied. Propagation characteristics of the 60 GHz and UWB indoor channels are also compared for providing useful information on design of radio systems. More specifically, based on real-time channel sounder measurements performed in the 60 GHz band, propagation mechanisms including person blocking effect are concluded. Ray-based models in LOS and NLOS indoor corridors are proposed. Multipath power distributions in the 60 GHz band are studied first time. Moreover, propagation interdependencies of path loss, shadowing, number of paths, Rice K-factor and cross polarization discrimination (XPD) with channel delay spread are established. In the UWB propagation channel, frequency- and bandwidth- dependencies are investigated. Multipath and clustering propagation characteristics are analyzed. A new cluster model is proposed and compared with the classical Saleh-Valenzuela model for gaining more understanding of channel general properties. Finally, the performance and capacities of the 60 GHz UWB and MIMO (multiple-in and multiple-out) systems are analyzed for providing reliable parameters for system design and useful information for standardization groups.Description
Supervising professor
Vainikainen, Pertti, Prof.Thesis advisor
Vainikainen, Pertti, Prof.Keywords
millimeter waves, ultra-wideband (UWB), propagation, ray-based models, statistical models, multipath, clustering, multiple-in and multiple-out (MIMO)
Other note
Parts
- [Publication 1]: Suiyan Geng, Jarmo Kivinen, Xiongwen Zhao, and Pertti Vainikainen. 2009. Millimeter-wave propagation channel characterization for short-range wireless communications. IEEE Transactions on Vehicular Technology, volume 58, number 1, pages 3-13.
- [Publication 2]: Suiyan Geng and Pertti Vainikainen. 2007. Millimeter-wave indoor channel characterization for broadband wireless local area networks. In: Jianping Yao (editor). Proceedings of the Fourth IASTED International Conference on Antennas, Radar, and Wave Propagation (ARP 2007). Montreal, Canada. 30 May - 1 June 2007. Pages 170-175. ISBN 978-0-88986-661-4.
- [Publication 3]: Suiyan Geng and Pertti Vainikainen. 2009. Millimeter-wave propagation in indoor corridors. IEEE Antennas and Wireless Propagation Letters, volume 8, number 1, pages 1242-1245.
- [Publication 4]: Suiyan Geng, Sylvain Ranvier, Xiongwen Zhao, Jarmo Kivinen, and Pertti Vainikainen. 2005. Multipath propagation characterization of ultra-wide band indoor radio channels. In: Proceedings of the 2005 IEEE International Conference on Ultra-Wideband (ICU 2005). Zurich, Switzerland. 5-8 September 2005. Pages 11-15. ISBN 0-7803-9397-X.
- [Publication 5]: Suiyan Geng and Pertti Vainikainen. 2010. Clustering characterization for UWB indoor communications. In: Proceedings of the Fourth European Conference on Antennas and Propagation (EuCAP 2010). Barcelona, Spain. 12-16 April 2010. papMo-83.pdf. 5 pages. ISBN 978-84-7653-472-4.
- [Publication 6]: Suiyan Geng and Pertti Vainikainen. 2006. Frequency and bandwidth dependency of UWB propagation channels. In: Proceedings of the 17th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2006). Helsinki, Finland. 11-14 September 2006. IEEE. CD-ROM, papTH6_1.pdf. 5 pages. ISBN 1-4244-0330-8.
- [Publication 7]: Suiyan Geng and Pertti Vainikainen. 2007. Experimental investigation of the properties of multiband UWB propagation channels. In: Proceedings of the 18th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2007). Athens, Greece. 3-7 September 2007. IEEE. CD-ROM, pap337.pdf. 5 pages. ISBN 1-4244-1144-0.
- [Publication 8]: Suiyan Geng. 2009. Performance and capacity analysis of 60 GHz WPAN channel. Microwave and Optical Technology Letters, volume 51, number 11, pages 2671-2675.