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DC Field | Value | Language |
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dc.contributor.author | Vella, Jean Marie | - |
dc.contributor.author | Zammit, Saviour | - |
dc.date.accessioned | 2017-11-23T08:39:49Z | - |
dc.date.available | 2017-11-23T08:39:49Z | - |
dc.date.issued | 2010 | - |
dc.identifier.citation | Vella, J. M., & Zammit, S. (2010). Performance improvement of long distance MIMO links using cross polarized antennas. Mediterranean Electrotechnical Conference (MELECON), Valletta. 1287-1292. | en_GB |
dc.identifier.uri | https://www.um.edu.mt/library/oar//handle/123456789/24092 | - |
dc.description.abstract | The hype with respect to MIMO systems is due to the theoretical analysis which have been reported, stating that such systems may increase the channel capacity by a factor equivalent to the smallest value between Nt and Nr, where Nt and Nr are the number of transmit and receive antennas respectively. Moreover, an improvement in the range may be observed if the number of antennas is increased at both the transmitter and the receiver, without demanding more transmit power. However, point-to-point long distance MIMO links are limited by the “keyhole” effect which results in a degenerate channel. The use of polarization diversity or artificial scatterers was proposed to eliminate the “keyhole” effect. In this analysis the effect of polarization diversity on the throughput of an IEEE 802.11n Draft 2.0 MIMO system for point-to-point long distance links is reported. IEEE 802.11n is an amendment to the IEEE 802.11 family of standards employing MIMO technology at the PHY layer besides improving the MAC layer to reduce the overhead incurred from acknowledgements and taking advantage of frame aggregation. The outcomes prove the hypothesis that a 2x2 MIMO system consisting of cross polarization at both ends of the communication link will mitigate the “keyhole” effect. Moreover, it also highlights the efficiency of IEEE 802.11n draft 2.0 via comparison of SISO systems utilizing IEEE 802.11g and IEEE 802.11n. Another point which resulted from the measurement campaign adopted was the improvement with respect to throughput that one can achieve by using 40 MHz channel spacing. | en_GB |
dc.language.iso | en | en_GB |
dc.publisher | Institute of Electrical and Electronics Engineers Inc. | en_GB |
dc.rights | info:eu-repo/semantics/restrictedAccess | en_GB |
dc.subject | Transmitting antennas | en_GB |
dc.subject | Magnetospheric radio wave propagation | en_GB |
dc.subject | Electromagnetic waves | en_GB |
dc.subject | MIMO systems | en_GB |
dc.title | Performance improvement of long distance MIMO links using cross polarized antennas | en_GB |
dc.type | conferenceObject | en_GB |
dc.rights.holder | The copyright of this work belongs to the author(s)/publisher. The rights of this work are as defined by the appropriate Copyright Legislation or as modified by any successive legislation. Users may access this work and can make use of the information contained in accordance with the Copyright Legislation provided that the author must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the prior permission of the copyright holder. | en_GB |
dc.bibliographicCitation.conferencename | Mediterranean Electrotechnical Conference (MELECON) | en_GB |
dc.bibliographicCitation.conferenceplace | Valletta, Malta, 26-28/04/2010 | en_GB |
dc.description.reviewed | peer-reviewed | en_GB |
dc.identifier.doi | 10.1109/MELCON.2010.5475954 | - |
Appears in Collections: | Scholarly Works - FacICTCCE |
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