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A contribution to the multi-link propagation channel modeling for 4G radio mobile relaying systems

Abstract : Advanced technologies in radio mobile systems have steadily increased the peak data rate over years. However, the peak data rate can only be obtained in the most favorable propagation conditions, typically when users are relatively close to the BS. Therefore, much research has been carried out for several years in order to reduce the performance differences among users in a cell. As part of this thesis, we focus on the relaying technology which is one of the key features of 3GPP LTE-Advanced. This thesis aims to improve existing channel models dedicated to relaying scenarios with a particular focus on path loss models, shadow fading correlation and relay antenna height impact. To this end, a multi-link measurement campaign with relays has been carried out in outdoor urban areas. Several existing path loss models have been compared with our measurement data. A particular attention has been paid for the link between the BS and the relay station (RS) which has not been adequately studied yet. Concerning the relay antenna height impact, an increasing trend of BS-RS link received powers has been observed when the relay antenna height has been raised. However, this trend has not been shown in RS-MS link. The correlation of shadow fading between BS-MS/RS-MS links or between two RS-MS links in a relaying system has also been studied and modeled. This study has demonstrated the relationship between the shadow fading correlation and several parameters such as the relay antenna height, the separation distance between transmitters and the angle between two transmitters viewed from the mobile station. Finally, the consistent aspects of path loss channels have been briefly discussed.
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Contributor : Quang Hien Chu Connect in order to contact the contributor
Submitted on : Tuesday, March 27, 2012 - 7:10:13 PM
Last modification on : Friday, February 12, 2021 - 3:05:47 AM


  • HAL Id : pastel-00683133, version 1



Quang Hien Chu. A contribution to the multi-link propagation channel modeling for 4G radio mobile relaying systems. Networking and Internet Architecture [cs.NI]. Télécom ParisTech, 2011. English. ⟨pastel-00683133⟩



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