Comparison of codebooks for beamforming in limited feedback MIMO systems

Wu, Yating; Zhao, Yufei; Yu, Fei

doi:10.1109/csae.2012.6272722

Cited by 12 publications

(14 citation statements)

References 10 publications

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“…More specifically, both the number of phase shifts and the number of beam patterns are equal to the number of elements M [45]. Hence, the DFT-based codebook of size M × K is generated by extracting M rows of the K × K DFT matrix [47], and it takes the following form:…”

Section: ) Discrete Fourier Transform Codebook Designmentioning

confidence: 99%

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Codebook Designs for Millimeter-Wave Communication Systems in Both Low- and High-Mobility: Achievements and Challenges

Mabrouki

Dayoub

et al. 2022

IEEE Access

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More connectivity, higher data rates, more reliability, massive network capacity, higher performance and fewer delays are required in the fifth generation (5G) of cellular networks. The last ten years have contained explosive growth in mobile data traffic due to the rapid proliferation of Internetconnected smart devices. For 5G mobile and wireless networks, one of the challenges is to discover how to solve the dilemma between capacity requirements and spectrum shortage. Millimeter-wave communication is therefore a key enabler for 5G technologies. Due to the high path and penetration losses at millimeter wavelengths, antenna beamforming assumes a pivotal role in establishing and maintaining a robust communication link. Recently, codebook-based beamforming has been proposed to achieve a fair balance between complexity and performance and to eliminate the overheads. In this paper, we track the techniques of codebook-based beamforming for millimeter-wave communications in the context of the distinct requirements for low-mobility channel and high-mobility channel scenarios. Subsequently, we will provide a comparison of existing codebook-based beamforming techniques in terms of their respective benefits and shortcomings. Finally, some open directions of research are discussed, and challenges that need to be met are pointed out.

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Section: ) Discrete Fourier Transform Codebook Designmentioning

confidence: 99%

“…The selection of u = (u 1 , ..., u M ) is meant to lower the cross-correlation between the codewords. The DFT-based codebook is often generated by searching for the u corresponding to the largest minimum distance between any two codewords as presented in [47].…”

Section: ) Discrete Fourier Transform Codebook Designmentioning

confidence: 99%

Codebook Designs for Millimeter-Wave Communication Systems in Both Low- and High-Mobility: Achievements and Challenges

Mabrouki

Dayoub

et al. 2022

IEEE Access

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“…Since the number of applicable precoding vectors in RF beamforming is already limited by hardware to a finite set, the use of predefined codebooks becomes a good strategy to reduce the amount of feedback information required by the system. Several precoding codebooks are available in the literature [18]. Due to its simplicity and effectiveness for uniform linear antenna arrays as shown in [19], DFT codebook is often preferred to more complex designs.…”

Section: Rf Beamformingmentioning

confidence: 99%

Distributed Hybrid Precoding for Indoor Deployments Using Millimeter Wave Band

Giménez

Calabuig

Roger

et al. 2017

Mobile Information Systems

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Distributed Antenna Systems (DAS) are an alternative of network deployment that allows reducing the distance between transmitter and receiver by distributing the antennas throughout the coverage area. Moreover, the performance of the millimeter wave (mmWave) band can be significantly high within short transmitter-receiver distances. In this paper, the potential benefits of DAS deployments in the mmWave band are studied. To this aim, a distributed hybrid precoding (DHP) solution with remote antenna unit (RAU) selection capabilities is proposed and analyzed in an indoor DAS working in mmWaves and compared to two other indoor deployment strategies: a conventional cellular system with colocated antenna arrays and a small cell deployment. The results show that, using DHP, DAS not only brings huge gains to cell-edge users rate but also increases system capacity, becoming the best overall deployment. Further simulations including practical limitations have revealed that DAS using DHP is quite robust to combiner losses, although its performance is significantly degraded by outdated channel reports.

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“…Codebook design techniques based on Grassmann and Grassmannian-Stiefel manifold were proposed in [6], [7], where the main idea was to optimize the use of the quantized space of the eigendirections for MIMO channels. In the same direction, other codebook designs could be mentioned, such as random vector quantization (RVQ), discrete Fourier transform (DFT), and Lloyd codebooks, where a comparative analysis among them can be found in [8].…”

Section: Introductionmentioning

confidence: 99%

Codebook Design and Performance Analysis of Quantized Beamforming under Perfect and Imperfect Channel State Information

Valduga¹,

Almeida²,

Machado

et al. 2017

JCIS

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Abstract-This paper presents a codebook design to multiple transmit and multiple receive antenna system with quantized feedback channel. The codebook design is based on trigonometrical expressions that give a quasi-orthogonal structure to the codes. The codebook is designed to a specific number of transmit antennas and can easily be adapted to different number of feedback bits. An instantaneous signalto-noise ratio analysis is performed which is used to optimize the codebooks. An upper bound on the bit error rate (BER) performance for the proposed scheme is provided as well. We also investigate the system performance under more realistic conditions, and for this purpose we consider a time-varying and spatially-correlated channel model. We compare the BER performance of the proposed scheme with other closed-loop codebook-based schemes. Results show that the proposed scheme outperforms other good schemes in terms of array gain.Index Terms-MIMO, beamforming, quantized feedback, BER and channel estimation.

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Comparison of codebooks for beamforming in limited feedback MIMO systems

Cited by 12 publications

References 10 publications

Codebook Designs for Millimeter-Wave Communication Systems in Both Low- and High-Mobility: Achievements and Challenges

Codebook Designs for Millimeter-Wave Communication Systems in Both Low- and High-Mobility: Achievements and Challenges

Distributed Hybrid Precoding for Indoor Deployments Using Millimeter Wave Band

Codebook Design and Performance Analysis of Quantized Beamforming under Perfect and Imperfect Channel State Information

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