Performance Analysis of Agile-Beam NOMA in Millimeter Wave Networks

Li, Jianfeng; Jing, Xiaojun; Zhang, Yangying; Mu, Junsheng

doi:10.1109/access.2019.2958337

Cited by 12 publications

(5 citation statements)

References 51 publications

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“…Comparative analysis of the Outage probability for downlink NOMA-mmWave network over small-scale fading channels concluded that NOMA outperforms OMA in multi-cell-based mmWaves systems [225]. [226] suggested application of agile beam NOMA for mmWave networks and observes that NOMA-mmWave has better coverage probability and sumrate than OMA mmWave networks. Compared with TDMA based MIMO-mmWave networks for D2D communications, for NOMA-based MIMO-mmWave networks, Outage Probability tends to decrease exponentially, whereas ergodic capacity increases linearly [227].…”

Section: F Mmwave Communicationmentioning

confidence: 99%

A Survey on Cache-Aided NOMA for 6G Networks

Bepari¹,

Mondal²,

Chandra³

et al. 2022

Preprint

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Contrary to orthogonal multiple-access (OMA), non-orthogonal multiple-access (NOMA) schemes can serve a pool of users without exploiting the scarce frequency or time domain resources. This is useful in meeting the sixth generation (6G) network requirements, such as, low latency, massive connectivity, users' fairness, and high spectral efficiency. On the other hand, content caching restricts duplicate data transmission by storing popular contents in advance at the network edge which reduces 6G data traffic. In this survey, we focus on cache-aided NOMA-based wireless networks which can reap the benefits of both cache and NOMA; switching to NOMA from OMA enables cache-aided networks to push additional files to content servers in parallel and improve the cache hit probability. Beginning with fundamentals of cache-aided NOMA technology, we summarize the performance goals of cache-aided NOMA systems, present the associated design challenges, and categorize related recent literature based on their application verticals. Concomitant standardization activities and open research challenges are highlighted as well.

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Section: F Mmwave Communicationmentioning

confidence: 99%

A Survey on Cache-Aided NOMA for 6G Networks

Bepari¹,

Mondal²,

Chandra³

et al. 2022

Preprint

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“…8. A certain number of adjacent antennas are separated in a group to form multiple sub-arrays that can generate analog beams steering to desired users [35], [36]. With different numbers of sub-arrays, the number of beams can be adjusted flexibly.…”

Section: A New Beamforming Technologiesmentioning

confidence: 99%

Antenna Array Enabled Space/Air/Ground Communications and Networking for 6G

Xiao¹,

Han²,

Nallanathan³

et al. 2021

Preprint

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Antenna arrays have a long history of more than 100 years and have evolved closely with the development of electronic and information technologies, playing an indispensable role in wireless communications and radar. With the rapid development of electronic and information technologies, the demand for all-time, all-domain, and full-space network services has exploded, and new communication requirements have been put forward on various space/air/ground platforms. To meet the ever increasing requirements of the future sixth generation (6G) wireless communications, such as high capacity, wide coverage, low latency, and strong robustness, it is promising to employ different types of antenna arrays (e.g., phased arrays, digital arrays, and reconfigurable intelligent surfaces, etc.) with various beamforming technologies (e.g., analog beamforming, digital beamforming, hybrid beamforming, and passive beamforming, etc.) in space/air/ground communication networks, bringing in advantages such as considerable antenna gains, multiplexing gains, and diversity gains. However, enabling antenna array for space/air/ground communication networks poses specific, distinctive and tricky challenges, which has aroused extensive research attention. This paper aims to overview the field of antenna array enabled space/air/ground communications and networking. The technical potentials and challenges of antenna array enabled space/air/ground communications and networking are presented first. Subsequently, the antenna array structures and designs are discussed. We then discuss various emerging technologies facilitated by antenna arrays to meet the new communication requirements of space/air/ground communication systems. Enabled by these emerging technologies, the distinct characteristics, challenges, and solutions for space communications, airborne communications, and ground communications are

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“…For convenience, we set κ t = [K t , m t , ∆ t , σ t ] (t ∈ {p, q}) and a = 0.2 for all the simulations under GPA scheme. (2) and (3) shows that the SINR of the two users under GPA scheme is only affected by their own channel fading. Figs.…”

Section: B the Impact Of Ftr Channel Parametersmentioning

confidence: 99%

“…In [2], the OP of downlink NOMA in multi-cell mmWave networks was studied over Nakagami-m fading. In [3], coverage probability and sum rate of agile-beam NOMA were investigated in mmWave networks over singlepath channels. In [4], the coverage probability, the average number of served users, and the sum rate of NOMA were studied for the cooperative multicast mmWave wireless networks over Nakagami-m fading channels.…”

Section: Introductionmentioning

confidence: 99%

On NOMA-Based mmWave Communications

Tian

Pan

Alouini

2020

IEEE Trans. Veh. Technol.

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Non-orthogonal multiple access (NOMA) and millimeter-wave (mmWave) communication are two promising techniques to increase the system capacity in the fifth-generation (5G) mobile network. The former can achieve high spectral efficiency by modulating the information in power domain and the latter can provide extremely large spectrum resources. Fluctuating two-ray (FTR) channel model has already been proved to accurately agree with the small-scale fading effects in mmWave communications in experiments. In this paper, the performance of NOMA-based communications over FTR channels in mmWave communication systems is investigated in terms of outage probability (OP) and ergodic capacity (EC). Specifically, we consider the scenario that one base station (BS) transmits signals to two users simultaneously under NOMA scheme. The BS and users are all equipped with a single antenna. Two power allocation strategies are considered: the first one is a general (fixed) power allocation scheme under which we derive the OP and EC of NOMA users in closed form; the other one is an optimal power allocation scheme that can achieve the maximum sum rate for the whole system. Under the second scheme, not only the closed-form OP and EC but also the upper and lower bounds of EC are derived. Furthermore, we also derive the asymptotic expression for the OP in high average SNR region to investigate the diversity order under these two schemes. Finally, we show the correctness and accuracy of our derived expressions by Monte-Carlo simulation.

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Performance Analysis of Agile-Beam NOMA in Millimeter Wave Networks

Cited by 12 publications

References 51 publications

A Survey on Cache-Aided NOMA for 6G Networks

A Survey on Cache-Aided NOMA for 6G Networks

Antenna Array Enabled Space/Air/Ground Communications and Networking for 6G

On NOMA-Based mmWave Communications

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