Analysis of switched diversity systems on generalized-fading channels

Abu-Dayya, Adnan; Beaulieu, N.C.

doi:10.1109/26.328977

Cited by 152 publications

(60 citation statements)

References 12 publications

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“…In a dual-branch SSC receiver, if the instantaneous signalto-noise ratio (SNR) of the first branch falls below a predefined switching threshold, the second branch is immediately selected, regardless of whether or not the SNR of that branch is above or below the predetermined threshold. Previously published works concerning the performance of SSC receivers are included in [5][6][7][8][9][10][11]. In most of these papers the optimum switching threshold for maximum average output SNR or / and error rate performance has been studied.…”

Section: Introductionmentioning

confidence: 99%

New results for the Shannon channel capacity in generalized fading channels

2005

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Section: Introductionmentioning

confidence: 99%

New results for the Shannon channel capacity in generalized fading channels

2005

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“…However, for the ratioγ i γ 0 , in accordance with Table 1, only the first term in (8) is sufficient, and we can apply the approximation for successful internode channel decoding (18). For this case, G d u remains equal to one, but one can see more clearly the impact of the correlation coefficient ρ on G c u as…”

Section: Case Ii:γ U γ Imentioning

confidence: 93%

“…Integration over the variable γ ij , presented in [17] (eq. (9.279)) and [18] results in a closed-form expression that includes the Marcum-Q function, defined in [19] (eq. (2-1-122)).…”

Section: Probability Of Successful Internode Decodingmentioning

confidence: 99%

Outage performance of low-latency decode-and-forward cooperative wireless networks

Zdravković

Cvetković

Kansanen

et al. 2016

J Wireless Com Network

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In this paper, we study a noise-limited low-latency decode-and-forward cooperative network set in a dynamic environment prone to link blockage. We analyse outage probability (OP) performance considering a temporally correlated fading channel between cooperating nodes employing a threshold-based protocol for internode communication. Exact and asymptotic analytical expressions for OP over Rayleigh fading, when maximal-ratio combining is applied at the destination, are derived. Asymptotic results give a better insight into outage performance at high average signal-to-noise ratio (SNR). We analyse the OP dependence on the SNR and link blockage probability and correlation coefficient of the estimated and actual internode SNR. The results illustrate that the internode protocol improves outage performance in the whole range of average uplink SNR. Internode channel correlation has a significant effect on the OP in the range of low average internode SNR. With increasing correlation, the OP increases up to an order of magnitude. The results also show that link blockage has a dominating effect on OP performance. The finite probability of all internode links being blocked reduces network performance to a single-link scenario, regardless of using the threshold-based protocol.

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“…Representing the modified Bessel function by an infinite series [20, eq. (9.6.10)], we readily obtain an infinite series representation for the joint pdf as (5) Note that (5) is in a product form of , and is therefore suitable for our purposes. Using the definition of the incomplete gamma function [20], we obtain the infinite series representation for the joint trivariate cdf as (6) where is defined as (3) and…”

Section: A Joint Pdf and Joint Cdfmentioning

confidence: 99%

“…The joint pdf of Rayleigh RVs has many applications, which include determining the impact of correlation on diversity systems and modeling fading processes [2], [5]- [8]. The pdf of bivariate correlated Rayleigh distribution has been derived by Rice [9].…”

Section: Introductionmentioning

confidence: 99%

Infinite Series Representations of the Trivariate and Quadrivariate Rayleigh Distribution and Their Applications

Chen

Tellambura

2005

IEEE Trans. Commun.

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Abstract-Few theoretical results are known about the joint distribution of three or more arbitrarily correlated Rayleigh random variables (RVs). Consequently, theoretical performance results are unknown for three-and four-branch equal gain combining (EGC), selection combining (SC), and generalized SC (GSC) in correlated Rayleigh fading. This paper redresses this gap by deriving new infinite series representations for the joint probability density function (pdf) and the joint cumulative distribution function (cdf) of three and four correlated Rayleigh RVs. Bounds on the error resulting from truncating the infinite series are derived. A classical approach, due to Miller, is used to derive our results. Unfortunately, Miller's approach cannot be extended to more than four variates and, in fact, the quadrivariate case considered in this paper appears to be the most general result possible. For brevity, we treat only a limited number of applications in this paper. The new pdf and cdf expressions are used to derive the outage probability of three-branch SC, the moments of the EGC output signal-to-noise ratio (SNR), and the moment generating function of the GSC(2,3) output SNR in arbitrarily correlated Rayleigh fading. A novel application of Bonferroni's inequalities allows new outage bounds for multibranch SC in arbitrarily correlated Rayleigh channels.

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Analysis of switched diversity systems on generalized-fading channels

Cited by 152 publications

References 12 publications

New results for the Shannon channel capacity in generalized fading channels

New results for the Shannon channel capacity in generalized fading channels

Outage performance of low-latency decode-and-forward cooperative wireless networks

Infinite Series Representations of the Trivariate and Quadrivariate Rayleigh Distribution and Their Applications

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