Free-Space Optical MISO Communications With an Array of Detectors

Bashir, Muhammad Salman; Alouini, Mohamed‐Slim

doi:10.1109/ojcoms.2020.3035600

Cited by 14 publications

(15 citation statements)

References 35 publications

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“…It can be shown that the probability of error obtained with an array of detectors for an equal gain combining scheme is given by [11]…”

Section: A Equal Gain Combinermentioning

confidence: 99%

“…We observe that the MRC obtains the best error probability performance followed by SC (Max SNR), SC (Max Output) and EGC. This is straightforward since MRC weights the output of each detector optimally [11] as compared to other schemes that weight the detector outputs suboptimally before the fusion takes place. Fig.…”

Section: S R Cmentioning

confidence: 99%

“…In this section, we briefly analyze the complexity for different combining schemes and compare it with the complexity of a single-detector receiver. Since the EGC simply adds the outputs of all the array elements to form the sufficient statistic [11], it requires M additions. Therefore, its complexity is O(M ).…”

Section: C Amentioning

confidence: 99%

“…For the switching combiner (SWC), the sorting complexity is βO(M log(M )) where 0 < β < 1 and β depends on the threshold γ. For the MRC, we have M multiplications and M additions [11]. Hence, its complexity is O(M 2 ).…”

Section: C Amentioning

confidence: 99%

See 3 more Smart Citations

A Single Detector Versus an Array of Detectors Receiver in Free-Space Optical Communications: A Performance Comparison

Bashir¹,

Tsai²,

Alouini³

2021

Preprint

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Free-space optical (FSO) communications is an important technology that will be used for supporting high data-rates in the backhaul of next generation of wireless communication networks. In this paper, we have compared the probability of error performance of two types of receivers used in FSO today: a receiver based on a single detector, and a receiver based on an array of detectors. The performance of these two receivers is compared for a number of fusion algorithms for an array of detectors such as equal gain combiner (EGC), selection combiner (SC), switched combiner (SWC) and the maximal ratio combiner (MRC). From this study, we conclude that even though the array of detectors adds more noise in the sufficient statistic by virtue of large number of detectors, using more computationally expensive fusion algorithms (such as SC and MRC) can help us achieve a superior probability of error performance as opposed to a single-detector receiver for practical channel conditions. <br>

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“…It can be shown that the probability of error obtained with an array of detectors for an equal gain combining scheme is given by [11]…”

Section: A Equal Gain Combinermentioning

confidence: 99%

Section: S R Cmentioning

confidence: 99%

Section: C Amentioning

confidence: 99%

Section: C Amentioning

confidence: 99%

See 2 more Smart Citations

A Single Detector Versus an Array of Detectors Receiver in Free-Space Optical Communications: A Performance Comparison

Bashir¹,

Tsai²,

Alouini³

2021

Preprint

Self Cite

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show abstract

“…The authors in [10] have deliberated upon the signal acquisition performance obtained with an array of detectors receiver for a photon-counting optical channel. The work [11] analyzes the performance of a free-space optical multiple-input single-output receiver for noncoherent and coherent beam combining schemes and pointing errors. For more information on the performance of an array of detectors in a deep-space optical communications, references [12], [13], [14] provide an excellent read.…”

Section: A Background Literature Reviewmentioning

confidence: 99%

A Single Detector Versus an Array of Detectors Receiver in Free-Space Optical Communications: A Performance Comparison

Bashir¹,

Tsai²,

Alouini³

2021

Preprint

Self Cite

View full text Add to dashboard Cite

Free-space optical (FSO) communications is an important technology that will be used for supporting high data-rates in the backhaul of next generation of wireless communication networks. In this paper, we have comparedthe probability of error performance of two types of receivers used in FSO today: a receiver based on a single detector, and a receiver based on an array of detectors. The performance of these two receivers is compared for a number of fusion algorithms for an array of detectors such as equal gain combiner (EGC), selection combiner(SC), switched combiner (SWC) and the maximal ratio combiner (MRC). From this study, we conclude that even though the array of detectors adds more noise in the sufficient statistic by virtue of large number of detectors,using more computationally expensive fusion algorithms (such as SC and MRC) can help us achieve a superior probability of error performance as opposed to a single-detector receiver for practical channel conditions.

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Point-to-Point Communication in Integrated Satellite-Aerial 6G Networks: State-of-the-Art and Future Challenges

Saeed

Dahrouj

Al-Naffouri

et al. 2021

IEEE Open J. Commun. Soc.

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This paper surveys the literature on point-to-point (P2P) links for integrated satellite-aerial networks, which are envisioned to be among the key enablers of the sixth-generation (6G) of wireless networks vision. The paper first outlines the unique characteristics of such integrated large-scale complex networks, often denoted by spatial networks, and focuses on two particular space-air infrastructures, namely, satellites networks and high-altitude platforms (HAPs). The paper then classifies the connecting P2P communications links as satellite-to-satellite links at the same layer (SSLL), satellite-to-satellite links at different layers (SSLD), and HAP-to-HAP links (HHL). The paper surveys each layer of such spatial networks separately, and highlights the possible natures of the connecting links (i.e., radiofrequency or free-space optics) with a dedicated survey of the existing link-budget results. The paper, afterwards, presents the prospective merit of realizing such an integrated satellite-HAP network towards providing broadband services in under-served and remote areas. Finally, the paper sheds light on several future research directions in the context of spatial networks, namely large-scale network optimization, intelligent offloading, smart platforms, energy efficiency, multiple access schemes, distributed spatial networks, and routing. Index Terms-Integrated satellite-aerial networks, spatial networks, satellites, high-altitude platforms, broadband services.

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Free-Space Optical MISO Communications With an Array of Detectors

Cited by 14 publications

References 35 publications

A Single Detector Versus an Array of Detectors Receiver in Free-Space Optical Communications: A Performance Comparison

A Single Detector Versus an Array of Detectors Receiver in Free-Space Optical Communications: A Performance Comparison

A Single Detector Versus an Array of Detectors Receiver in Free-Space Optical Communications: A Performance Comparison

Point-to-Point Communication in Integrated Satellite-Aerial 6G Networks: State-of-the-Art and Future Challenges

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