… Owing to the eminent performance gain, non-orthogonal multiple access (NOMA) has been
… secure transmission in NOMA systems. Hence, in this article, secure transmission schemes …

… and SAS schemes for MISO NOMA system and compare them with the STT scheme. The …
user with fixed power allocation scheme deteriorates as the transmit power surpasses some …

… In this paper, three secure transmission schemes are proposed for MISO-NOMA networks
via joint precoding optimization, with and without eavesdropping CSI, respectively. For the …

… It is worth noting that we provide a lightweight secure transmission scheme compared with
[24] and [25]. Lightweight PLS mechanisms are urgently required for IoT networks and our …

… -user scenario, we propose a more general scheme where multiple users can share the
same resource slot and design a power allocation scheme for reducing the effect of SIC error on …

… ments in the Internet-of-Things (IoT) networks, this article proposes a nonorthogonal multiple
access (NOMA) scheme which pairs two types of typical users, ie, delay-sensitive user (DSU…

… x2 are data symbols for U1 and U2 with unit variance, Ps is the source transmission power,
… In the cooperative NOMA scheme considered in this paper, the users are ordered based on …

… In addition, we concentrate on the study of secure transmission of the SR user. According
to Wyner secrecy code theorem [45], the codeword of xs is coded as (Rs,Rse) where Rs and …

… In this letter, we show that the above secure MIMONOMA channel can be seen as two interwoven
… Next, we design novel precoding and power allocation schemes that achieve capacity …

… In this section, we evaluate the SSE and SEE of the proposed scheme via simulations. LRs
and eavesdropper are randomly distributed in one cell. Specifically, the number of antennas …