Design and Development of Novel Hybrid Precoder for Millimeter-Wave MIMO System

Power consumption and hardware cost reduction with the use of hybrid beamforming in large-scale millimeter wave MIMO systems. The large dimensional analog precoding integrates with the hybrid beamforming based on the phase shifters including digital precoding with lower dimensionality. The reduction of Euclidean distance between the hybrid precoder and fully digital is the major problem to overcome the minimization of resultant spectral efficiency. The issue formulates as a fully digital precoder’s matrix factorization problem based on the analog RF precoder matrix and the digital baseband precoder matrix. An additional element-wise unit modulus constraint is imposed by the phase shifters on the analog RF precoder matrix. The traditional methods have a problem of performance loss in spectral efficiency. In the processing time and iteration, high complexities result in optimization algorithms. In this paper, a novel low complexity algorithm proposes which maximizes the spectral efficiency and reduces the computational processing time.

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Hybrid beamforming with finite-resolution phase shifters for large-scale MIMO systems

2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) ◽

10.1109/spawc.2015.7227015 ◽

2015 ◽

Cited By ~ 33

Author(s):

Foad Sohrabi ◽

Wei Yu

Keyword(s):

Large Scale ◽

Mimo Systems ◽

Phase Shifters ◽

Finite Resolution ◽

Hybrid Beamforming

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A New Design of Codebook for Hybrid Precoding in Millimeter-Wave Massive MIMO Systems

Symmetry ◽

10.3390/sym13050743 ◽

2021 ◽

Vol 13 (5) ◽

pp. 743

Author(s):

Gang Liu ◽

Honggui Deng ◽

Kai Yang ◽

Zaoxing Zhu ◽

Jitai Liu ◽

...

Keyword(s):

Millimeter Wave ◽

Spectral Efficiency ◽

Mimo Systems ◽

Learning Algorithm ◽

Matching Pursuit ◽

Mimo System ◽

Multiple Input Multiple Output ◽

Iteration Algorithm ◽

Codebook Design ◽

Hybrid Precoding

The precoding scheme based on codebooks is used to save the same set of codebook in advance at the transmitter and the receiver, then, the receiver selects the most appropriate precoding matrix from codebooks according to different channel state information (CSI). Therefore, the design of codebook plays an important role in the performance of the whole scheme. The symmetry-based hybrid precoder and combiner is a highly energy efficient structure in the millimeter-wave massive multiple-input multiple-output (MIMO) system, but at the same time, it also has the problems of high bit error rate and low spectral efficiency. In order to improve the spectral efficiency, we formulate the codebook design as a joint optimization problem and propose an iteration algorithm to obtain the enhanced codebook by combining the compressive sampling matching pursuit (CoSaMP) algorithm with the dictionary learning algorithm. In order to prove the validity of the proposed algorithm, we simulate and analyze the change of the spectral efficiency of the algorithm with the signal-to-noise ratio (SNR) and the number of radio frequency (RF) chains of different precoding schemes. The simulation results demonstrate that the spectral efficiency of the algorithm is obviously outstanding compared with that of the OMP-based joint codebook algorithm and the hybrid precoding algorithm with quantization algorithm under low SNR and different numbers of RF chains. Particularly, when SNR is lower than 0 dB, the proposed algorithm performs very close to the optimal unconstrained precoding algorithm.

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Hybrid Beamforming With Discrete Phase Shifters for Millimeter-Wave Massive MIMO Systems

IEEE Transactions on Vehicular Technology ◽

10.1109/tvt.2017.2670638 ◽

2017 ◽

Vol 66 (8) ◽

pp. 7604-7608 ◽

Cited By ~ 34

Author(s):

Jung-Chieh Chen

Keyword(s):

Millimeter Wave ◽

Massive Mimo ◽

Mimo Systems ◽

Phase Shifters ◽

Discrete Phase ◽

Hybrid Beamforming

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Achievable Spectral Efficiency of Hybrid Beamforming Massive MIMO Systems With Quantized Phase Shifters, Channel Non-Reciprocity and Estimation Errors

IEEE Access ◽

10.1109/access.2020.2987613 ◽

2020 ◽

Vol 8 ◽

pp. 71304-71317 ◽

Cited By ~ 1

Author(s):

Yawen Chen ◽

Xiangming Wen ◽

Zhaoming Lu

Keyword(s):

Spectral Efficiency ◽

Massive Mimo ◽

Mimo Systems ◽

Phase Shifters ◽

Estimation Errors ◽

Hybrid Beamforming

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Beamforming with Precoders Based Millimeter Wave Communication System

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.a5343.119119 ◽

2019 ◽

Vol 9 (1) ◽

pp. 4795-4799

Keyword(s):

Wireless Communication ◽

Millimeter Wave ◽

Spectral Efficiency ◽

Communication System ◽

System Performance ◽

Mimo System ◽

Wireless Communication System ◽

Hybrid Beamforming ◽

Millimeter Wave Communication

The 5G communications are used with baseband Precoders and Beamforming. The Technology is needed to update, all available characteristics in the present Wireless Communication System (WCS). The Hybrid Beamforming systems are across in the RF and Digital domain. In the mmWave MIMO system, the numbers of antennas has increased to improve the Spectral Efficiency of the system. The proposed algorithms observe that system performance for different SNR range.

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Analysis of Optimum Precoding schemes in Millimeter Wave System

Recent Advances in Computer Science and Communications ◽

10.2174/2666255813666200102124758 ◽

2020 ◽

Vol 13 ◽

Author(s):

Divya Singh ◽

Aasheesh Shukla

Keyword(s):

Power Consumption ◽

Millimeter Wave ◽

Spectral Efficiency ◽

Phase Shifter ◽

Phase Shifters ◽

Achievable Rate ◽

Wave System ◽

Digital To Analog Converter ◽

Hybrid Precoding ◽

Analog Converter

Background : Millimeter wave technology is the emerging technology in wireless communication due to increased demand for data traffic and its numerous advantages however it suffers from severe attenuation. To mitigate this attenuation, phased antenna arrays are used for unidirectional power distribution. An initial access is needed to make a connection between the base station and users in millimeter wave system. The high complexity and cost can be mitigated by the use of hybrid precoding schemes. Hybrid precoding techniques are developed to reduce the complexity, power consumption and cost by using phase shifters in place of converters. The use of phase shifters also increases the spectral efficiency. Objective: Analysis of Optimum Precoding schemes in Millimeter Wave System. Method: In this paper, the suitability of existing hybrid precoding solutions are explored on the basis of the different algorithms and the architecture to increase the average achievable rate. Previous work done in hybrid precoding is also compared on the basis of the resolution of the phase shifter and digital to analog converter. Results: A comparison of the previous work is done on the basis of different parameters like the resolution of phase shifters, digital to analog converter, amount of power consumption and spectral efficiency. Table 2 shows the average achievable rate of different algorithms at SNR= 0 dB and 5 dB. Table 3 also compares the performance achieved by the hybrid precoder in the fully connected structure with two existing approaches, dynamic subarray structure with and without switch and sub connected or partially connected structure. Table 4 gives the comparative analysis of hybrid precoding with the different resolutions of the phase shifter and DAC. Conclusion: In this paper, some available literature is reviewed and summarized about hybrid precoding in millimeter wave communication. Current solutions of hybrid precoding are also reviewed and compared in terms of their efficiency, power consumption, and effectiveness. The limitations of the existing hybrid precoding algorithms are the selection of group and resolution of phase shifters. The mm wave massive MIMO is only feasible due to hybrid precoding.

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