Beamspace MIMO for high-dimensional multiuser communication at millimeter-wave frequencies

Sayeed, A.M.; Brady, John

doi:10.1109/glocom.2013.6831645

Cited by 293 publications

(319 citation statements)

References 20 publications

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“…Hence, h k can be accurately modeled as [28][29][30] where β k and β k,l are the complex gain of LoS path and multi-path components for the k-th user, respectively, i.e.,…”

Section: Channel Modelmentioning

confidence: 99%

Spectral efficiency of multi-user millimeter wave systems under single path with uniform rectangular arrays

Tan

Jin

Wen

et al. 2017

J Wireless Com Network

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In this paper, we investigate the downlink achievable ergodic spectral efficiency (SE) of a single-cell multi-user millimeter wave system, in which a uniform rectangular array is used at the base station (BS) to serve multiple single-antenna users. We adopt a three-dimensional channel model by considering both the azimuth and elevation dimensions under single-path propagation. We derive the achievable ergodic SE for this system in with maximum ratio transmission precoding. This analytical expression enables the accurate and quantitative evaluation of the effect of the number of BS antennas, signal-to-noise ratio (SNR), and the crosstalk (squared inner product between different steering vectors) which is a function of the angles of departure (AoD) of users and the inter-antenna spacing. Results show that the achievable ergodic SE logarithmically increases with the number of BS antennas and converges to a value in the high SNR regime. To improve the achievable ergodic SE, we also propose a user scheduling scheme based on feedback of users' AoD information and obtain the maximum achievable ergodic SE. Furthermore, we consider a dense user scenario where every user's AoD becomes nearly identical and then derive the system's minimum achievable SE.

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“…Hence, h k can be accurately modeled as [28][29][30] where β k and β k,l are the complex gain of LoS path and multi-path components for the k-th user, respectively, i.e.,…”

Section: Channel Modelmentioning

confidence: 99%

Spectral efficiency of multi-user millimeter wave systems under single path with uniform rectangular arrays

Tan

Jin

Wen

et al. 2017

J Wireless Com Network

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“…A key feature of mmWave systems is that lineof-sight (LOS) propagation is predominant due to the quasioptical propagation characteristics. In [18], it was reported that mmWave communications can achieve a high-rate (1-100 Gbps) communication in a pure LOS channel. Clearly, large antenna arrays can not only provide the beamforming gain to overcome path loss and establish reliable links, but also support multiple data streams via general precoding schemes [17,18].…”

Section: Introductionmentioning

confidence: 99%

“…In [18], it was reported that mmWave communications can achieve a high-rate (1-100 Gbps) communication in a pure LOS channel. Clearly, large antenna arrays can not only provide the beamforming gain to overcome path loss and establish reliable links, but also support multiple data streams via general precoding schemes [17,18]. Therefore, massive MIMO systems in the mmWave band are ideally suited for high-capacity transmission and, thus, are anticipated to form an important component of 5G systems [19,20].…”

Section: Introductionmentioning

confidence: 99%

Statistical Eigenmode Transmission for the MU-MIMO Downlink in Rician Fading

Jin

Tan

Matthaiou

et al. 2015

IEEE Trans. Wireless Commun.

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Abstract-In this paper, we study the achievable ergodic sum-rate of multiuser multiple-input multiple-output downlink systems in Rician fading channels. We first derive a lower bound on the average signal-to-leakage-and-noise ratio by using the Mullen's inequality, and then use it to analyze the effect of channel mean information on the achievable ergodic sum-rate. A novel statistical-eigenmode space-division multiple-access (SE-SDMA) downlink transmission scheme is then proposed. For this scheme, we derive an exact analytical closed-form expression for the achievable ergodic rate and present tractable tight upper and lower bounds. Based on our analysis, we gain valuable insights into the system parameters, such as the number of transmit antennas, the signal-to-noise ratio (SNR) and Rician K-factor on the system sum-rate. Results show that the sum-rate converges to a saturation value in the high SNR regime and tends to a lower limit for the low Rician K-factor case. In addition, we compare the achievable ergodic sum-rate between SE-SDMA and zeroforcing beamforming with perfect channel state information at the base station. Our results reveal that the rate gap tends to zero in the high Rician K-factor regime. Finally, numerical results are presented to validate our analysis.

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“…Therefore, it is essential to design an appropriate selecting matrix to select DFT columns (beams) to form F A and W A . Following this idea, a magnitude maximization (MM) beamselection scheme was proposed in [169], where several beams with large power are selected. Alternatively, an interferenceaware beam-selection scheme was proposed in [127].…”

Section: Hybrid Precoding and Combiningmentioning

confidence: 99%

Millimeter Wave Communications for Future Mobile Networks

Xiao

Mumtaz

Huang

et al. 2017

IEEE J. Select. Areas Commun.

989

530

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Abstract-Millimeter wave (mmWave) communications have recently attracted large research interest, since the huge available bandwidth can potentially lead to rates of multiple Gbps (gigabit per second) per user. Though mmWave can be readily used in stationary scenarios such as indoor hotspots or backhaul, it is challenging to use mmWave in mobile networks, where the transmitting/receiving nodes may be moving, channels may have a complicated structure, and the coordination among multiple nodes is difficult. To fully exploit the high potential rates of mmWave in mobile networks, lots of technical problems must be addressed. This paper presents a comprehensive survey of mmWave communications for future mobile networks (5G and beyond). We first summarize the recent channel measurement campaigns and modeling results. Then, we discuss in detail recent progresses in multiple input multiple output (MIMO) transceiver design for mmWave communications. After that, we provide an overview of the solution for multiple access and backhauling, followed by analysis of coverage and connectivity. Finally, the progresses in the standardization and deployment of mmWave for mobile networks are discussed.

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Beamspace MIMO for high-dimensional multiuser communication at millimeter-wave frequencies

Cited by 293 publications

References 20 publications

Spectral efficiency of multi-user millimeter wave systems under single path with uniform rectangular arrays

Spectral efficiency of multi-user millimeter wave systems under single path with uniform rectangular arrays

Statistical Eigenmode Transmission for the MU-MIMO Downlink in Rician Fading

Millimeter Wave Communications for Future Mobile Networks

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