Carrier aggregation‐enabled non‐orthogonal multiple access approach towards enhanced network performance in 5G Ultra‐Dense Networks,International Journal of Communication Systems

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Carrier aggregation‐enabled non‐orthogonal multiple access approach towards enhanced network performance in 5G Ultra‐Dense Networks
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2020-12-20 , DOI: 10.1002/dac.4701
Oladele Afolalu ₁ , Neco Ventura ₁

Affiliation

The need for fifth generation (5G) wireless technology to meet stringent demands on high throughput, ultra low latency, high reliability, massive connectivity, and fairness among users has seriously constrained the limited radio spectrum. Non‐orthogonal multiple access (NOMA) has been identified as one of the promising enabling radio access techniques to solve this problem. The basic principle of NOMA is the ability to serve multiple users in the same time and frequency resources but differentiated by their power domains. However, the inherent power‐domain multiplexing requires channel gain disparity between the strong and weak users, thereby reducing the sum‐rate gain of the network. In this paper, we propose NOMA scheme, integrated with carrier aggregation (CA) to further increase the bandwidth and data rate of users. Simulation results show considerable improvement in terms of throughput, energy efficiency, and fairness among users.

中文翻译：

支持运营商聚合的非正交多路访问方法可提高5G超密集网络的网络性能

第五代（5G）无线技术需要满足对高吞吐量，超低延迟，高可靠性，大规模连接性以及用户之间的公平性的严格要求，这严重限制了有限的无线电频谱。非正交多址（NOMA）已被认为是解决该问题的有希望的使能无线电接入技术之一。NOMA的基本原理是能够在相同的时间和频率资源中为多个用户提供服务，但根据他们的功率域而有所不同。但是，固有的功率域多路复用要求强用户和弱用户之间的信道增益差异，从而降低网络的总增益。在本文中，我们提出了将NOMA方案与载波聚合（CA）集成在一起，以进一步增加用户的带宽和数据速率。

更新日期：2021-02-03

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