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Compressive Sensing-based Differential Channel Feedback Scheme Using Subspace Matching Pursuit Algorithm for B5G Wireless Systems, Journal of Telecommunications and Information Technology, 2025, nr 1
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Title: Compressive Sensing-based Differential Channel Feedback Scheme Using Subspace Matching Pursuit Algorithm for B5G Wireless Systems, Journal of Telecommunications and Information Technology, 2025, nr 1

Creator:

Baranidharan, V. ; Surendar, M.

Date:

2025, nr 1

Resource Type:

artykuł

Group publication title:

2025, nr 1, JTIT-artykuły

Description:

kwartalnik

Abstrakt:

Millimeter wave (mmWave) massive multi-input multi-output (MIMO) systems are the promising technology for next-generation 5G wireless systems and beyond. Sparse signal recovery and channel feedback are challenging and fundamental problems affecting downlink transmission due to the substantial increase in channel matrix size in mmWave systems. To overcome the overhead of the channel and improve CS recovery effectiveness, this article proposes the joint use of the subspace matching search algorithm and differential operation for channel impulse response (CIR). Here, the current CIR is converted to a differential CIR using operations between the current and previous CIRs. The differential CIR is then compressed and fed back to the base station. Subsequently, this differential CIR is recovered using the subspace matching search algorithm. Such a scheme leverages effective structural sparsity through a combination of subspace and differential operations. The adaptive algorithm adaptively selects relevant subspaces based on coefficients. The simulation results show that the proposed scheme reduces channel overhead by 36% and 24% at compression ratios of 25% and 45%, respectively, over different time slots in mmWave massive MIMO systems.

Number:

1

Publisher:

National Institute of Telecommunications

Resource Identifier:

oai:bc.itl.waw.pl:2381

DOI:

10.26636/jtit.2025.1.1904

eISSN:

on-line: ISSN 1899-8852

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności

License:

CC BY 4.0

Subject and keywords:

channel impulse response channel state information compressive sensing mmWave

Object collections:

Last modified:

Apr 16, 2025

In our library since:

Apr 16, 2025

Number of object content hits:

0

All available object's versions:

https://bc.itl.waw.pl/publication/2696

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Edition name Date
Baranidharan, V.; Surendar, M., Compressive Sensing-based Differential Channel Feedback Scheme Using Subspace Matching Pursuit Algorithm for B5G Wireless Systems, Journal of Telecommunications and Information Technology, 2025, nr 1 Apr 16, 2025

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