A Tutorial on Nonorthogonal Multiple Access for 5G and Beyond
Küçük Resim Yok
Tarih
2018
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley-Hindawi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Today's wireless networks allocate radio resources to users based on the orthogonal multiple access (OMA) principle. However, as the number of users increases, OMA based approaches may not meet the stringent emerging requirements including very high spectral efficiency, very low latency, and massive device connectivity. Nonorthogonal multiple access (NOMA) principle emerges as a solution to improve the spectral efficiency while allowing some degree of multiple access interference at receivers. In this tutorial style paper, we target providing a unified model for NOMA, including uplink and downlink transmissions, along with the extensions to multiple input multiple output and cooperative communication scenarios. Through numerical examples, we compare the performances of OMA and NOMA networks. Implementation aspects and open issues are also detailed.
Açıklama
Anahtar Kelimeler
Cooperative Relaying Systems, Massive-Mimo-Noma, Performance Analysis, Power Allocation, Sum Rate, Wireless Networks, Capacity, Downlink, Selection, Optimization
Kaynak
Wireless Communications & Mobile Computing
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
