Details
| Original language | English |
|---|---|
| Title of host publication | 17th International OFDM Workshop 2012 (InOWo 2012) |
| Publisher | VDE Verlag GmbH |
| ISBN (electronic) | 9783800733606 |
| Publication status | Published - 7 Sept 2012 |
| Event | 17th International OFDM Workshop 2012, InOWo 2012 - Essen, Germany Duration: 29 Aug 2012 → 30 Aug 2012 |
Abstract
This contribution presents an improved Interference Alignment (IA) method for arbitrary MIMO-OFDM communication systems by exploiting spatial degrees of freedom of sophisticated multimode MIMO antennas. It is widely known that IA needs sufficient orthogonality between all the multi-user channels which is in typical indoor environments often not given due to insufficient spatial diversity. A significant improvement of the IA system performance has been achieved by using multimode MIMO antennas instead of classical and idealized omni-directional antennas. Such multimode MIMO antennas are capable to switch between different modes of the radiation patterns which significantly reduces the relevant channel coherence. Simulations of an indoor multi-user environment are carried out by a deterministic MIMO-OFDM channel model based on hybrid Electro Magnetic (EM) ray-tracing for being as close as possible to reality. Moreover, hardware implementation aspects are discussed as well demonstrating the feasibility of the overall IA based MIMO OFDM system.
ASJC Scopus subject areas
- Engineering(all)
- Electrical and Electronic Engineering
- Physics and Astronomy(all)
- Nuclear and High Energy Physics
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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17th International OFDM Workshop 2012 (InOWo 2012). VDE Verlag GmbH, 2012.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Improved Interference Alignment Performance for MIMO OFDM Systems by Multimode MIMO Antennas
AU - El-Hadidy, Mohamed
AU - El-Absi, Mohammed
AU - Sit, Leen
AU - Kock, Markus
AU - Zwick, Thomas
AU - Blume, Holger
AU - Kaiser, Thomas
N1 - Funding information: ACKNOWLEDGMENT This work has been carried out in the framework of the project Real-World Design of a cognitive MIMO-UWB Communication System (DeciMUS) which is funded by the German Research Foundation (DFG) program within Ultra-Wideband Radio Technologies for Communications, Localization and Sensor Applications (UKoLoS). The authors thank German Academic Exchange Service - (DAAD) for their financial support.
PY - 2012/9/7
Y1 - 2012/9/7
N2 - This contribution presents an improved Interference Alignment (IA) method for arbitrary MIMO-OFDM communication systems by exploiting spatial degrees of freedom of sophisticated multimode MIMO antennas. It is widely known that IA needs sufficient orthogonality between all the multi-user channels which is in typical indoor environments often not given due to insufficient spatial diversity. A significant improvement of the IA system performance has been achieved by using multimode MIMO antennas instead of classical and idealized omni-directional antennas. Such multimode MIMO antennas are capable to switch between different modes of the radiation patterns which significantly reduces the relevant channel coherence. Simulations of an indoor multi-user environment are carried out by a deterministic MIMO-OFDM channel model based on hybrid Electro Magnetic (EM) ray-tracing for being as close as possible to reality. Moreover, hardware implementation aspects are discussed as well demonstrating the feasibility of the overall IA based MIMO OFDM system.
AB - This contribution presents an improved Interference Alignment (IA) method for arbitrary MIMO-OFDM communication systems by exploiting spatial degrees of freedom of sophisticated multimode MIMO antennas. It is widely known that IA needs sufficient orthogonality between all the multi-user channels which is in typical indoor environments often not given due to insufficient spatial diversity. A significant improvement of the IA system performance has been achieved by using multimode MIMO antennas instead of classical and idealized omni-directional antennas. Such multimode MIMO antennas are capable to switch between different modes of the radiation patterns which significantly reduces the relevant channel coherence. Simulations of an indoor multi-user environment are carried out by a deterministic MIMO-OFDM channel model based on hybrid Electro Magnetic (EM) ray-tracing for being as close as possible to reality. Moreover, hardware implementation aspects are discussed as well demonstrating the feasibility of the overall IA based MIMO OFDM system.
UR - http://www.scopus.com/inward/record.url?scp=84961313895&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85084022763
BT - 17th International OFDM Workshop 2012 (InOWo 2012)
PB - VDE Verlag GmbH
T2 - 17th International OFDM Workshop 2012, InOWo 2012
Y2 - 29 August 2012 through 30 August 2012
ER -