Angle Feedback for NOMA Transmission in mmWave Drone Networks

Rupasinghe, Nadisanka; Yapıcı, Yavuz; Güvenç, İsmail; Ghosh, Monisha; Kakishima, Yuichi

doi:10.1109/jstsp.2019.2905226

Cited by 39 publications

(25 citation statements)

References 27 publications

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“…Users within the same beam were served using NOMA. The same authors extended this work in [78] to limited users angles information feedback at the aBS. Finally, cooperative NOMA has been proposed in [79], [80].…”

Section: Max Eementioning

confidence: 99%

Multiple Access in Aerial Networks: From Orthogonal and Non-Orthogonal to Rate-Splitting

Jaafar

Naser

Muhaidat

et al. 2020

IEEE Open J. Veh. Technol.

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Recently, interest on the utilization of unmanned aerial vehicles (UAVs) has aroused. Specifically, UAVs can be used in cellular networks as aerial users for delivery, surveillance, rescue search, or as an aerial base station (aBS) for communication with ground users in remote uncovered areas or in dense environments requiring prompt high capacity. Aiming to satisfy the high requirements of wireless aerial networks, several multiple access techniques have been investigated. In particular, space-division multiple access (SDMA) and power-domain non-orthogonal multiple access (NOMA) present promising multiplexing gains for aerial downlink and uplink. Nevertheless, these gains are limited as they depend on the conditions of the environment. Hence, a generalized scheme has been recently proposed, called rate-splitting multiple access (RSMA), which is capable of achieving better spectral efficiency gains compared to SDMA and NOMA. In this paper, we present a comprehensive survey of key multiple access technologies adopted for aerial networks, where aBSs are deployed to serve ground users. Since there have been only sporadic results reported on the use of RSMA in aerial systems, we aim to extend the discussion on this topic by modelling and analyzing the weighted sum-rate performance of a two-user network served by an RSMA-based aBS. Finally, related open issues and future research directions are exposed. Index Terms-Orthogonal multiple access (OMA), non-orthogonal multiple access (NOMA), rate-splitting multiple access (RSMA), unmanned aerial vehicle (UAV), survey. I. INTRODUCTION D UE to the unprecedented growth of mobile data traffic and stringent quality-of-service (QoS) requirements, recent research efforts have focused on several key enabling technologies for 5G networks and beyond [1], such as millimeter waves (mmWave), terahertz (THz) communications, multiple-input multiple-output (MIMO), massive MIMO, multiple access techniques, relaying, cognitive radio, and unmanned aerial networks [2]. In particular, unmanned aerial vehicles (UAVs) have demonstrated great potential in enabling new applications. For instance, UAVs can be used for aerial security inspection, traffic monitoring, smart agriculture, aerial delivery, etc. [3], [4] (and references therein). Furthermore, UAVs can be deployed as aerial base stations (aBSs) to provide wireless access to ground and aerial devices/users, in several scenarios such as temporary events, disasters when a terrestrial cellular network is not fully operational, and congestion due to unpredictable traffic surges, as well as aerial devices/users (e.g., cargo drones) [5], [6].

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Section: Max Eementioning

confidence: 99%

Multiple Access in Aerial Networks: From Orthogonal and Non-Orthogonal to Rate-Splitting

Jaafar

Naser

Muhaidat

et al. 2020

IEEE Open J. Veh. Technol.

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“…The obtained coverage probability in (23), (24), (29) and (30) are quite complicated, which involve the calculation of triple integrals. In order to obtain some insights of proposed agilebeam NOMA scheme, asymptotic analysis is carried out in single-beam and multi-beam cases.…”

Section: B Asymptotic Analysismentioning

confidence: 99%

“…However, given narrow beam in mmWave, the users is shown to be more distinctive with respect to their angle information than distance information. Therefore, it is worth pointing out that the angle information has a significant potential in user pairing because of the sparsity in angle domain and directionality of mmWave channel [24]. Recently, an angle-based user pairing strategy is proposed for mmWave NOMA networks [25].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Agile-Beam NOMA in Millimeter Wave Networks

Jing

Zhang

et al. 2020

IEEE Access

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We propose an agile-beam non-orthogonal multiple access (NOMA) scheme for millimeter wave (mmWave) communication networks. The agile-beam NOMA scheme flexibly switches between the single/multi-beam NOMA depending on the user pairing results. In particular, a novel user pairing strategy employing both distance and angle information is designed to facilitate the agile-beam NOMA transmission. More specifically, the base station first selects one user from the far user group randomly and then pairs it with the user that has the minimum angle difference in the near user group. This pairing strategy efficiently exploits the channel sparsity in user domain while supporting flexible mmWave transmission with agilebeam NOMA. Then an in-depth performance analysis is carried out to reveal the interplay between the key system parameters and the coverage probability of the proposed agile-beam NOMA by using the tool of stochastic geometry. Moreover, numerical results demonstrate the superiority of the proposed agile-beam NOMA over the conventional NOMA and orthogonal multiple access (OMA) in mmWave communication networks. INDEX TERMS Millimeter wave (mmWave) communication, non-orthogonal multiple access (NOMA), user pairing.

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“…2. Note that depending on the specific communication scenarios encountered, the terminology of partial CSI may represent partial knowledge of the channel gains, of the distance of the users or the angle of arrival of the users' channels, as discussed for example in [9]. Let us denote the channel's column vectors by h k and h j valid for User k and User j, respectively.…”

Section: New Multiple Access Techniques For Mmwave Small Cell Nementioning

confidence: 99%

Next-Generation mm-Wave Small-Cell Networks: Multiple Access, Caching, and Resource Management

Cui

Liu

Ding

et al. 2020

IEEE Veh. Technol. Mag.

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Millimeter wave (mmWave) small cells have been considered as an effective technique of significantly improving the data rates of future networks. More particularly, this article investigates the potential benefits of mmWave small cell networks from the perspective of non-orthogonal multiple access (NOMA) and wireless caching. We highlight a range of innovative resource management solutions conceived for mmWave small cell networks by invoking adaptive learning. Finally, several promising future research directions of mmWave small cell networks are identified.

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Angle Feedback for NOMA Transmission in mmWave Drone Networks

Cited by 39 publications

References 27 publications

Multiple Access in Aerial Networks: From Orthogonal and Non-Orthogonal to Rate-Splitting

Multiple Access in Aerial Networks: From Orthogonal and Non-Orthogonal to Rate-Splitting

Performance Analysis of Agile-Beam NOMA in Millimeter Wave Networks

Next-Generation mm-Wave Small-Cell Networks: Multiple Access, Caching, and Resource Management

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