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- W3009963081 endingPage "1304" @default.
- W3009963081 startingPage "1276" @default.
- W3009963081 abstract "The inevitable next era of smart living requires unprecedented advances in enabling technologies. The building blocks of this era are devices such as sensors, actuators, and Internet of Things (IoT) devices. Machine-Type Communication (MTC), also known as Machine-to-Machine (M2M) communication, constitutes the main enabling technology to support communications among such devices. The massive number of these devices and the immense amount of traffic generated by them require a paramount shift in cellular and non-cellular wireless technologies to achieve the required connectivity. Ultra-Dense Network (UDN) is intuitively one of the most convenient approaches to tackle such requirements of massive connectivity and high throughput found in MTC. In UDNs, small cells are deployed in large densities compared to Human-Type Communication Users (HTCUs) like smartphones and tablets. In a different scope, multiple access techniques also require a paradigm shift to cope with the increasing density of required connections while confined by limited resources. Recently, Non-Orthogonal Multiple Access (NOMA) has received a great attention as an efficacious candidate to enhance the network’s performance compared to traditional Orthogonal Multiple Access (OMA) techniques. For this sake, in this paper, we provide a comprehensive survey and illustrative simulation results on the application of NOMA to support MTC in a UDN environment. First, we give a brief discussion on MTC and its different applications and supporting technologies. Then, we focus our effort on investigating the main challenges facing MTC along with the existing opportunities found in both NOMA and UDN, respectively. Finally, we show via simulations the possible gains of both technologies and conclude by discussing the open problems for future research directions." @default.
- W3009963081 created "2020-03-13" @default.
- W3009963081 creator A5005243649 @default.
- W3009963081 creator A5021613864 @default.
- W3009963081 creator A5038213672 @default.
- W3009963081 creator A5085765243 @default.
- W3009963081 date "2020-01-01" @default.
- W3009963081 modified "2023-10-17" @default.
- W3009963081 title "NOMA-Assisted Machine-Type Communications in UDN: State-of-the-Art and Challenges" @default.
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