Spatial and Temporal Variation of Wideband Indoor Channels
Extensive studies of the impact of temporal variations induced by people on the characteristics of indoor wideband channels are reported. Singular Value Decomposition Prony algorithm has been used to compute the impulse response from measured channel transfer functions. The high multipath resolution...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2010/735434 |
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| author | David L. Ndzi Nick Savage Boris Gremont |
| author_facet | David L. Ndzi Nick Savage Boris Gremont |
| author_sort | David L. Ndzi |
| collection | DOAJ |
| description | Extensive studies of the impact of temporal variations induced by people on the characteristics of indoor wideband channels are reported. Singular Value Decomposition Prony algorithm has been used to compute the impulse response from measured channel transfer functions. The high multipath resolution of the algorithm has allowed a detailed assessment of the shapes of individual multipath clusters and their variation in time and space in indoor channels. Large- and small-scale analyses show that there is a significant dependency of the channel response on room size. The presence of people in the channel has been found to induce both signal enhancements and fading with short-term dynamic variations of up to 30 dB, depending on the number of people and their positions within the room. A joint amplitude and time of arrival model has been used to successfully model measured impulse response clusters. |
| format | Article |
| id | doaj-art-255a34edbc064fcba2c4e3cf38b90559 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-255a34edbc064fcba2c4e3cf38b905592025-02-03T05:51:53ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772010-01-01201010.1155/2010/735434735434Spatial and Temporal Variation of Wideband Indoor ChannelsDavid L. Ndzi0Nick Savage1Boris Gremont2Department of Electronic and Computer Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UKDepartment of Electronic and Computer Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UKDepartment of Electronic and Computer Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UKExtensive studies of the impact of temporal variations induced by people on the characteristics of indoor wideband channels are reported. Singular Value Decomposition Prony algorithm has been used to compute the impulse response from measured channel transfer functions. The high multipath resolution of the algorithm has allowed a detailed assessment of the shapes of individual multipath clusters and their variation in time and space in indoor channels. Large- and small-scale analyses show that there is a significant dependency of the channel response on room size. The presence of people in the channel has been found to induce both signal enhancements and fading with short-term dynamic variations of up to 30 dB, depending on the number of people and their positions within the room. A joint amplitude and time of arrival model has been used to successfully model measured impulse response clusters.http://dx.doi.org/10.1155/2010/735434 |
| spellingShingle | David L. Ndzi Nick Savage Boris Gremont Spatial and Temporal Variation of Wideband Indoor Channels International Journal of Antennas and Propagation |
| title | Spatial and Temporal Variation of Wideband Indoor Channels |
| title_full | Spatial and Temporal Variation of Wideband Indoor Channels |
| title_fullStr | Spatial and Temporal Variation of Wideband Indoor Channels |
| title_full_unstemmed | Spatial and Temporal Variation of Wideband Indoor Channels |
| title_short | Spatial and Temporal Variation of Wideband Indoor Channels |
| title_sort | spatial and temporal variation of wideband indoor channels |
| url | http://dx.doi.org/10.1155/2010/735434 |
| work_keys_str_mv | AT davidlndzi spatialandtemporalvariationofwidebandindoorchannels AT nicksavage spatialandtemporalvariationofwidebandindoorchannels AT borisgremont spatialandtemporalvariationofwidebandindoorchannels |