Modulation and Multiple Access for 5G Networks

By Yunlong Cai, Zhijin Qin, Fangyu Cui, Geoffrey Y. Li, Julie Ann McCann. IEEE Communications Surveys and Tutorials, 2017

445 citations recorded by the source corpus.

Fifth generation (5G) wireless networks face various challenges in order to support large-scale heterogeneous traffic and users, therefore new modulation and multiple access (MA) schemes are being developed to meet the changing demands. As this research space is ever increasing, it becomes more important to analyze the various approaches, therefore, in this paper we present a comprehensive overview of the most promising modulation and MA schemes for 5G networks. Unlike other surreys of 5G networks, this paper focuses on multiplexing techniques, including modulation techniques in orthogonal MA (OMA) and various types of non-OMA (NOMA) techniques. Specifically, we first introduce different types of modulation schemes, potential for OMA, and compare their performance in terms of spectral efficiency, out-of-band leakage, and bit-error rate. We then pay close attention to various types of NOMA candidates, including power-domain NOMA, code-domain NOMA, and NOMA multiplexing in multiple domains. From this exploration, we can identify the opportunities and challenges that will have the most significant impacts on modulation and MA designs for 5G networks.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/776ef4dfd3e4142d4ca7758aad279bbf1dc8167d

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In Electrical and Electronic Engineering

Citations in the corpus

Grant-Free Non-Orthogonal Multiple Access for IoT: A Survey (2019, unknown): “Oct-2017 [22] X X X X X X X X X X X X X X X X”
Nonorthogonal Multiple Access for 5G and Beyond (2017, background): “As mentioned before, sophisticated multiple access (MA) techniques have also been regarded as one of the most fundamental enablers, which have signiﬁcantly evolved over the consecutive generations in wireless networks [10], [11].”
Massive Access for 5G and Beyond (2020, background): “The 5G wireless standard utilizes low-density parity check (LDPC) codes and polar codes for the data and control channels, respectively [16].”
Exploiting Intelligent Reflecting Surfaces in NOMA Networks: Joint Beamforming Optimization (2019, background): “Non-orthogonal multiple access (NOMA) is one of the key technologies in future wireless communication networks due to its higher SE achievement, user fairness guarantee, and massive connectivity support [7], [8].”
A Survey of Rate-Optimal Power Domain NOMA With Enabling Technologies of Future Wireless Networks (2019, background): “PD-NOMA has also been studied in conjunction with CD-NOMA recently [6], where such combination is beyond the scope of this paper.”
Ultra-Low Latency (ULL) Networks: The IEEE TSN and IETF DetNet Standards and Related 5G ULL Research (2018, background): “In particular, we first give a brief overview of the main ULL research directions in the 5G wireless access segment and refer to the extensive 5G wireless access literature for more details [34], [35], [229], [258]–[260].”
Exploiting Full/Half-Duplex User Relaying in NOMA Systems (2018, background): “With the rapid increasing demand of wireless networks, the requirements for efﬁciently exploiting the spectrum is of great signiﬁcance in new radio (NR) usage scenarios [2].”