Statistical Properties of Amplify and Forward Relay Fading Channels

Patel, C.S.; Stuber, G.L.; Pratt, Thomas G.

doi:10.1109/tvt.2005.861170

Cited by 206 publications

(177 citation statements)

References 19 publications

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“…These special cases include double Rice [19], double Rayleigh [9,14], SLDS [22], SLSS [20,21], and NLSS [20,21] fading channels. In this section, we will discuss the conditions under which MLSS fading processes reduce to any of the embedded processes.…”

Section: Special Cases Of Mlss Channelsmentioning

confidence: 99%

“…Several models have therefore been proposed so far to characterize the fading statistics of M2M fading channels in such networks. Under NLOS propagation conditions, the M2M amplify-and-forward relay fading channel can be modeled as a double Rayleigh process [8,9,14]. Experimental measurements of outdoor-toindoor M2M fading channels analyzed in [9] provide us with a solid ground to believe that double Rayleigh processes are well suited to model such channels.…”

Section: Introductionmentioning

confidence: 99%

“…Experimental measurements of outdoor-toindoor M2M fading channels analyzed in [9] provide us with a solid ground to believe that double Rayleigh processes are well suited to model such channels. A detailed analysis on the statistics of double Rayleigh channels is presented in [14]. The authors of [15] have addressed the impact of double Rayleigh fading on the systems performance.…”

Section: Introductionmentioning

confidence: 99%

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Mobile-to-mobile fading channels in amplify-and-forward relay systems under line-of-sight conditions: statistical modeling and analysis

Talha

Pätzold

2010

Ann. Telecommun.

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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 doublescattering (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.

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Section: Special Cases Of Mlss Channelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mobile-to-mobile fading channels in amplify-and-forward relay systems under line-of-sight conditions: statistical modeling and analysis

Talha

Pätzold

2010

Ann. Telecommun.

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“…Furthermore, g 7 (·, ·, ·) is the function defined in (29). Considering the special case when ρ = 0, (30) reduces to the expression of the LCR for double Rayleigh processes given in [7] as…”

Section: Lcr Of Slds Processesmentioning

confidence: 99%

“…Studies on the statistical properties of amplify-andforward relay fading channels under NLOS conditions can be found in [7]. The authors of [7] have modeled the amplify-and-forward relay channel in the equivalent complex baseband as a zero-mean complex double Gaussian channel, i.e., the product of two zeromean complex Gaussian channels. Hence, the envelope of the overall amplify-and-forward relay fading channel follows the double Rayleigh distribution [8].…”

Section: Introductionmentioning

confidence: 99%

Statistical Modeling and Analysis of Mobile-to-Mobile Fading Channels in Cooperative Networks Under Line-of-Sight Conditions

Talha

Pätzold

2009

Wireless Pers Commun

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Recently, mobile-to-mobile (M2M) cooperative network technology has gained considerable attention for its promise of enhanced system performance with increased mobility support. As this is a new research field, little is known about the statistical properties of M2M fading channels in cooperative networks. So far, M2M fading channels have mainly been modeled under the assumption of non-line-of-sight (NLOS) conditions. In this paper, we propose a new model for M2M fading channels in amplify-and-forward relay links, where it is assumed that a line-of-sight (LOS) component exists in the direct link between the source mobile station and the destination mobile station. Analytical expressions will be derived for the main statistical quantities of the channel envelope, such as the mean value, variance, probability density function (PDF), level-crossing rate (LCR), and average duration of fades (ADF) as well as the channel phase. Our results show that the statistical properties of the proposed M2M channel are quite different from those of double Rayleigh and double Rice channels. In addition, a high-performance channel simulator will be presented for the new M2M channel model. The developed channel simulator is used to confirm the correctness of all obtained theoretical results by simulations.

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References

2010

Cooperative Communications

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Statistical Properties of Amplify and Forward Relay Fading Channels

Cited by 206 publications

References 19 publications

Mobile-to-mobile fading channels in amplify-and-forward relay systems under line-of-sight conditions: statistical modeling and analysis

Mobile-to-mobile fading channels in amplify-and-forward relay systems under line-of-sight conditions: statistical modeling and analysis

Statistical Modeling and Analysis of Mobile-to-Mobile Fading Channels in Cooperative Networks Under Line-of-Sight Conditions

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