On the Performance of QPSK Modulation Over Downlink NOMA: From Error Probability Derivation to SDR-Based Validation
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2983299
Abstract: In this paper, we study the performance of QPSK modulation in the context of multi-user downlink NOMA with a successive interference canceller (SIC) at the receiver side. The first objective is to evaluate the benefit… read more here.
Keywords: error probability; qpsk modulation; validation; performance qpsk ... See more keywords
A Novel User Grouping in Phase Rotation based Downlink NOMA
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DOI: 10.1109/access.2022.3157318
Abstract: Non-orthogonal multiple access (NOMA) is a promising candidate beyond 5G and 6G to improve spectral efficiency by sharing the same resource block with other users. However, as the number of users increases in a single… read more here.
Keywords: phase; phase rotation; noma; downlink noma ... See more keywords
Optimal User Grouping for Downlink NOMA
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DOI: 10.1109/lwc.2018.2815683
Abstract: In this letter, we study the user grouping for the downlink nonorthogonal multiple access system. The optimal user grouping problem is formulated to maximize the sum rate. Due to the combinatorial nature, the computational complexity… read more here.
Keywords: grouping downlink; downlink noma; user grouping; optimal user ... See more keywords
Improper Gaussian Signaling for Downlink NOMA Systems with Imperfect Successive Interference Cancellation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Wireless Communications"
DOI: 10.1109/twc.2022.3161379
Abstract: Non-orthogonal multiple access (NOMA) exhibits superiority in spectrum efficiency which is particularly essential in the Internet of Things (IoT) system involving massive number of device connections. This paper addresses the achievable rate improvement for the… read more here.
Keywords: interference cancellation; improper gaussian; interference; imperfect successive ... See more keywords