Mobile-to-mobile fading channels in amplify-and-forward relay systems under line-of-sight conditions: statistical modeling and analysis
Batool Talha,Matthias Patzold +1 more
TLDR
This paper deals with the modeling and analysis of narrowband mobile-to-mobile (M2M) fading channels for amplify-and-forward relay links under line-of-sight (LOS) conditions and the proposed channel model is referred to as the multiple-LOS second-order scattering (MLSS) channel model.Abstract:
This paper deals with the modeling and analysis of narrowband mobile-to-mobile (M2M) fading channels for amplify-and-forward relay links under line-of-sight (LOS) conditions. It is assumed that a LOS component exists in the direct link between the source mobile station (SMS) and the destination mobile station (DMS), as well as in the links via the mobile relay (MR). The proposed channel model is referred to as the multiple-LOS second-order scattering (MLSS) channel model. The MLSS channel model is derived from a second-order scattering process, where the received signal is modeled in the complex baseband as the sum of a single and a double scattered component. Analytical expressions are derived for the mean value, variance, probability density function (PDF), cumulative distribution function (CDF), level-crossing rate (LCR), and average duration of fades (ADF) of the received envelope of MLSS channels. The PDF of the channel phase is also investigated. It is observed that the LOS components and the relay gain have a significant influence on the statistics of MLSS channels. It is also shown that MLSS channels include various other channel models as special cases, e.g., double Rayleigh channels, double Rice channels, single-LOS double-scattering (SLDS) channels, non-line-of-sight (NLOS) second-order scattering (NLSS) channels, and single-LOS second-order scattering (SLSS) channels. The correctness of all analytical results is confirmed by simulations using a high performance channel simulator. Our novel MLSS channel model is of significant importance for the system level performance evaluation of M2M communication systems in different M2M propagation scenarios. Furthermore, our studies pertaining to the fading behavior of MLSS channels are useful for the design and development of relay-based cooperative wireless networks.read more
Citations
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Journal ArticleDOI
Channel Models for Mobile-to-Mobile Cooperative Communication Systems: A State of the Art Review
Batool Talha,Matthias Patzold +1 more
TL;DR: It has been shown that M2M cooperative channels are strongly dependent on the systems' topology and can exhibit more severe fading than classical Rayleigh channels with completely different first- and second-order envelope statistics.
Journal ArticleDOI
A Geometrical Three-Ring-Based Model for MIMO Mobile-to-Mobile Fading Channels in Cooperative Networks
Batool Talha,Matthias Patzold +1 more
TL;DR: This paper deals with the modeling and analysis of narrowband multiple-input multiple-output (MIMO) mobile-to-mobile (M2M) fading channels in relay-based cooperative networks, and demonstrates that the developed channel simulator is not only important for the development of future MIMO M2M cooperative communication systems, but also for analyzing the dynamic behavior of the MIMOs channel capacity.
Journal ArticleDOI
Semi-blind two-way AF relaying over Nakagami-m fading environment
TL;DR: This work derives the expression of the signal-to-noise ratio (SNR) and shows that the cost of the significant reduction of the proposed SB-OAF complexity is obtained for a slight loss in performance compared to CSIA- OAF scenario.
Journal ArticleDOI
Semi-blind amplify-and-forward in two-way relaying networks
TL;DR: This paper addresses the analysis of a two-way semi-blind amplify-and-forward (AF) relay network, in which the relay node requires partial instantaneous channel state information (CSI) to amplify the received signals.
Dissertation
Modulations multiporteuses WCP-OFDM : évaluation des performances en environnement radiomobile
TL;DR: Les resultats de simulation confirment l'interet du WCP-OFDM, associe a des filtres prototypes bien localises en temps and en frequence pour faire face aux canaux doublement selectifs.
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