Antenna subarray management for hybrid beamforming in millimeter-Wave mesh backhaul networks

Zhai, Bangzhao; Tang, Aimin; Huang, Cheng; Han, Chong; Wang, Xudong

doi:10.1016/j.nancom.2018.12.002

Cited by 10 publications

(6 citation statements)

References 20 publications

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“…Many researchers [202]- [207] have focused on various HBF solutions for the mmWave architecture configuration, signal processing, RF system implementation, etc. More specifically, Roh et al [202] conducted a feasibility study of HBF for mmWave 5G, while Zhai et al [203] studied HBF for mmWave backhaul networks. The work [204] studied the HBF based on the MMSE design for mmWave systems, and the work [205] proposed a hardware-efficient HBF design for mmWave MIMO.…”

Section: Table Ix: Research On Mmwave Multi-connectionmentioning

confidence: 99%

“…The first phase realizes a feasible optimal beamformer in the blockage-free scenario, and the second phase invokes different strategies to tackle different blockage scenarios. Likewise, the works [203], [209] leveraged joint or adaptive HBF schemes to optimize throughput, power consumption, and antenna gain. Table X summarizes some key applications of HBF for mmWave mobile networks.…”

Section: Table Ix: Research On Mmwave Multi-connectionmentioning

confidence: 99%

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Mobility Support for Millimeter Wave Communications: Opportunities and Challenges

Li¹,

Niu²,

Wu³

et al. 2022

Preprint

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Millimeter-wave (mmWave) communication technology offers a potential and promising solution to support 5G and B5G wireless networks in dynamic scenarios and applications. However, mobility introduces many challenges as well as opportunities to mmWave applications. To address these problems, we conduct a survey of the opportunities and technologies to support mmWave communications in mobile scenarios. Firstly, we summarize the mobile scenarios where mmWave communications are exploited, including indoor wireless local area network (WLAN) or wireless personal area network (WPAN), cellular access, vehicle-to-everything (V2X), high speed train (HST), unmanned aerial vehicle (UAV), and the new space-airground-sea communication scenarios. Then, to address users' mobility impact on the system performance in different application scenarios, we introduce several representative mobility models in mmWave systems, including human mobility, vehicular mobility, high speed train mobility and ship mobility. Next we survey the key challenges and existing solutions to mmWave applications, such as channel modeling, channel estimation, antiblockage, and capacity improvement. Lastly, we discuss the open issues concerning mobility-aware mmWave communications that deserve further investigation. In particular, we highlight future heterogeneous mobile networks, dynamic resource management, artificial intelligence (AI) for mobility and integration of geographical information, deployment of large intelligent surface and reconfigurable antenna technology, and finally, the evolution to Terahertz (THz) communications.

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Section: Table Ix: Research On Mmwave Multi-connectionmentioning

confidence: 99%

Section: Table Ix: Research On Mmwave Multi-connectionmentioning

confidence: 99%

Mobility Support for Millimeter Wave Communications: Opportunities and Challenges

Li¹,

Niu²,

Wu³

et al. 2022

Preprint

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“…Due to the small wavelength at mm-wave frequencies and large path loss, beamforming typically creates links that have a strong line-of-sight (LoS) component and only a few, if any, weak multi-path components. Such mm-wave links are inherently point-to-point, and are well modeled as AWGN links [7]- [9]. Although mmwave links support high data rates due to their large bandwidths, they provide limited coverage, whereas microwave links typically provide reliable coverage and support only moderate data rates.…”

Section: Introductionmentioning

confidence: 99%

“…In the microwave band, transmissions from both sources are superimposed at the relay and at the destination as in a conventional MARC (c-MARC) [24]. In contrast, since mm-wave links are highly directional [7], when a transmitter in the mm-wave band transmits specifically to the relay or the destination, the resulting mm-wave link causes minimal to no interference to the unintended receiver [9], [25]. In fact, a mm-wave transmitter can create two parallel non-interfering links via beamforming, and then communicate with both relay and destination simultaneously [6], [9], [25].…”

Section: Introductionmentioning

confidence: 99%

“…In contrast, since mm-wave links are highly directional [7], when a transmitter in the mm-wave band transmits specifically to the relay or the destination, the resulting mm-wave link causes minimal to no interference to the unintended receiver [9], [25]. In fact, a mm-wave transmitter can create two parallel non-interfering links via beamforming, and then communicate with both relay and destination simultaneously [6], [9], [25]. Therefore, in this work a mm-wave transmitter is modeled as being able to create two such parallel non-interfering AWGN links to simultaneously transmit to the relay and the destination, while a mm-wave receiver is modeled as being able to simultaneously receive transmissions from multiple mm-wave transmitters via separate mm-wave links [26] with negligible inter-link interference.…”

Section: Introductionmentioning

confidence: 99%

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Dual-Band Fading Multiple Access Relay Channels

Majhi

Mitran

2019

IEEE Trans. Commun.

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Relay cooperation and integrated microwave and millimeter-wave (mm-wave) dual-band communication are likely to play key roles in 5G. In this paper, we study a two-user uplink scenario in such dual-bands, modeled as a multiple-access relay channel (MARC), where two sources communicate to a destination assisted by a relay.However, unlike the microwave band, transmitters in the mm-wave band must employ highly directional antenna arrays to combat the ill effects of severe path-loss and small wavelength. The resulting mm-wave links are pointto-point and highly directional, and are thus used to complement the microwave band by transmitting to a specific receiver. For such MARCs, the capacity is partially characterized for sources that are near the relay in a joint sense over both bands. We then study the impact of the mm-wave spectrum on the performance of such MARCs by characterizing the transmit power allocation scheme for phase faded mm-wave links that maximizes the sum-rate under a total power budget. The resulting scheme adapts the link transmission powers to channel conditions by transmitting in different modes, and all such modes and corresponding conditions are characterized. Finally, we study the properties of the optimal link powers and derive practical insights. Index TermsFading multiple-access relay channel, Dual-band communication, Millimeter-wave band.Transmission in the mm-wave band differs from that in the conventional microwave band in that omnidirectional mm-wave transmission suffers from much higher power loss and absorption. Thus, a transmitter must use beamforming via highly directional antenna arrays to reach a receiver [6]. Due to the small wavelength at mm-wave frequencies and large path loss, beamforming typically creates links that have a strong line-of-sight (LoS) component and only a few, if any, weak multi-path components. Such mm-wave links are inherently point-to-point, and are well modeled as AWGN links [7]- [9]. Although mmwave links support high data rates due to their large bandwidths, they provide limited coverage, whereas microwave links typically provide reliable coverage and support only moderate data rates. Thus, in a dualband setting, these two bands mutually complement each other: conventional traffic and control information can be reliably communicated in the microwave band, and high data-rate traffic can be communicated via the mm-wave links [3]-[5], [10]-[15].In future 5G networks, access via dual microwave and mm-wave bands will likely be a key technology, and hence they have been subject to much investigation recently. For example, studies as in [10]-[12],[14] focus on improving network layer metrics such as the number of served users, throughput, and link reliability, etc., while studies as in [16]-[18] focus on improving physical layer metrics such as the achievable rates and outage probability. Moreover, the emergence of dual-band modems from Intel [19] and Qualcomm [20], and practical demonstrations such as that in the 3 GHz-30 GHz dual-bands in [4] clearly illustrate...

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Hybrid beamforming with relay and dual-base stations blockage mitigation in millimetre-wave 5G communication applied in (VIOT)

Alsunbuli

Fakhruldeen

Ismail

et al. 2022

Computers and Electrical Engineering

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Antenna subarray management for hybrid beamforming in millimeter-Wave mesh backhaul networks

Cited by 10 publications

References 20 publications

Mobility Support for Millimeter Wave Communications: Opportunities and Challenges

Mobility Support for Millimeter Wave Communications: Opportunities and Challenges

Dual-Band Fading Multiple Access Relay Channels

Hybrid beamforming with relay and dual-base stations blockage mitigation in millimetre-wave 5G communication applied in (VIOT)

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