The Upper-Bound of the Average Achievable Rate of Non Orthogonal Multiple Access | ||
| AUT Journal of Electrical Engineering | ||
| مقاله 6، دوره 58، Special Issue 1، 2026، صفحه 51-58 اصل مقاله (663.09 K) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/eej.2025.24031.5647 | ||
| نویسنده | ||
| Mina Baghani* | ||
| PhD, Faculty of Technical and Engineering, Imam Khomeini International University, Qazvin, Iran | ||
| چکیده | ||
| The Non Orthogonal Multiple Access (NOMA) is a popular candidate for the next generation of wireless networks. Two advantages of NOMA are that it can achieve a higher rate and support more users compared to orthogonal multiple access (OMA). By increasing the number of users occupied a subchannel in NOMA, the achievable rate and the number of supported users of the system have been increased. Thus, we can assume there are infinite users in the system wanting to share one subchannel to derive the upper bound of the achievable rate of NOMA. In this article, the optimal power allocation function of infinite users in NOMAis derived, which maximizes the average achievable rate of the system under the maximum power constraint. The performances of the proposed power allocation strategy are compared with the simple case with only two users in NOMA. The simulation results show the gap between the average achievable rate and the outage probability of infinite users and two users in the NOMA system. | ||
| کلیدواژهها | ||
| Resource allocation؛ NOMA؛ Successive interference cancellation؛ Convex optimization | ||
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