Performance degradation due to multipath noise for narrowband OFDM systems: channel-based analysis and experimental determination
- Author
- Frédéric Heereman (UGent) , Wout Joseph (UGent) , Emmeric Tanghe (UGent) , Leen Verloock (UGent) and Luc Martens (UGent)
- Organization
- Abstract
- The performance of OFDM systems over a multipath channel can strongly degrade due to the propagation delay spread. The distortion of the received signal over the fast Fourier transform window is referred to as multipath noise. This work aims to analytically determine the performance loss due to multipath noise as a function of OFDM and channel parameters for narrowband OFDM systems. First, it is investigated whether it is possible to describe the multipath noise, varying over different OFDM packets due to the temporal variation of the channel, by an effective noise factor F-delay, from which the loss factor is directly determined. Second, the theory of room electromagnetics is applied to develop a closed-form expression for F-delay as a function of the OFDM and reverberation parameters. This analytical method is validated with excellent agreement. Finally, the loss factor is determined for IEEE 802.11 based on channel measurements in two large conference rooms, providing values up to 19 dB for an 800 ns cyclic prefix length.
- Keywords
- SELECTIVE FADING CHANNELS, ROOM ELECTROMAGNETICS, TRANSMISSION, OPTIMIZATION, Conference room, cyclic prefix, delay spread, diffuse component, IEEE 802.11, loss, OFDM, reverberation time, room electromagnetics, SIMO measurement
Downloads
-
WICA 582a.pdf
- full text
- |
- open access
- |
- |
- 713.83 KB
-
(...).pdf
- full text
- |
- UGent only
- |
- |
- 938.37 KB
Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-6972140
- MLA
- Heereman, Frédéric, et al. “Performance Degradation Due to Multipath Noise for Narrowband OFDM Systems: Channel-Based Analysis and Experimental Determination.” IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol. 14, no. 3, 2015, pp. 1396–405, doi:10.1109/TWC.2014.2366135.
- APA
- Heereman, F., Joseph, W., Tanghe, E., Verloock, L., & Martens, L. (2015). Performance degradation due to multipath noise for narrowband OFDM systems: channel-based analysis and experimental determination. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 14(3), 1396–1405. https://doi.org/10.1109/TWC.2014.2366135
- Chicago author-date
- Heereman, Frédéric, Wout Joseph, Emmeric Tanghe, Leen Verloock, and Luc Martens. 2015. “Performance Degradation Due to Multipath Noise for Narrowband OFDM Systems: Channel-Based Analysis and Experimental Determination.” IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 14 (3): 1396–1405. https://doi.org/10.1109/TWC.2014.2366135.
- Chicago author-date (all authors)
- Heereman, Frédéric, Wout Joseph, Emmeric Tanghe, Leen Verloock, and Luc Martens. 2015. “Performance Degradation Due to Multipath Noise for Narrowband OFDM Systems: Channel-Based Analysis and Experimental Determination.” IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 14 (3): 1396–1405. doi:10.1109/TWC.2014.2366135.
- Vancouver
- 1.Heereman F, Joseph W, Tanghe E, Verloock L, Martens L. Performance degradation due to multipath noise for narrowband OFDM systems: channel-based analysis and experimental determination. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS. 2015;14(3):1396–405.
- IEEE
- [1]F. Heereman, W. Joseph, E. Tanghe, L. Verloock, and L. Martens, “Performance degradation due to multipath noise for narrowband OFDM systems: channel-based analysis and experimental determination,” IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol. 14, no. 3, pp. 1396–1405, 2015.
@article{6972140, abstract = {{The performance of OFDM systems over a multipath channel can strongly degrade due to the propagation delay spread. The distortion of the received signal over the fast Fourier transform window is referred to as multipath noise. This work aims to analytically determine the performance loss due to multipath noise as a function of OFDM and channel parameters for narrowband OFDM systems. First, it is investigated whether it is possible to describe the multipath noise, varying over different OFDM packets due to the temporal variation of the channel, by an effective noise factor F-delay, from which the loss factor is directly determined. Second, the theory of room electromagnetics is applied to develop a closed-form expression for F-delay as a function of the OFDM and reverberation parameters. This analytical method is validated with excellent agreement. Finally, the loss factor is determined for IEEE 802.11 based on channel measurements in two large conference rooms, providing values up to 19 dB for an 800 ns cyclic prefix length.}}, author = {{Heereman, Frédéric and Joseph, Wout and Tanghe, Emmeric and Verloock, Leen and Martens, Luc}}, issn = {{1536-1276}}, journal = {{IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS}}, keywords = {{SELECTIVE FADING CHANNELS,ROOM ELECTROMAGNETICS,TRANSMISSION,OPTIMIZATION,Conference room,cyclic prefix,delay spread,diffuse component,IEEE 802.11,loss,OFDM,reverberation time,room electromagnetics,SIMO measurement}}, language = {{eng}}, number = {{3}}, pages = {{1396--1405}}, title = {{Performance degradation due to multipath noise for narrowband OFDM systems: channel-based analysis and experimental determination}}, url = {{http://doi.org/10.1109/TWC.2014.2366135}}, volume = {{14}}, year = {{2015}}, }
- Altmetric
- View in Altmetric
- Web of Science
- Times cited: