Capacity Analysis of Non-Orthogonal Multiple Access (NOMA) Network over Rayleigh Fading Channel with Dynamic Power Allocation and Imperfect SIC

Rummi Sirait, Gunawan Wibisono

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Non-Orthogonal Multiple Access (NOMA) is a multiple access scheme that can increase channel capacity and spectral efficiency by using superposition coding (SC) on the transmitter and successive interference cancellation (SIC) to detect multiuser on the receiver. This paper investigates the effect of imperfect SIC and dynamic power allocation on NOMA channel capacity. Based on the simulation results, it is shown that the sum capacity of NOMA schemes in the imperfect SIC with dynamic power allocation is better than the sum capacity of orthogonal multiple access (OMA) schemes. The sum capacity of NOMA users with dynamic power allocation is better than fixed power allocation. In imperfect SIC, with a transmit power value of 3 0 dBm and the value of the residual interference level is 0.005, the channel capacity is 9.04 bps/Hz. While the residual interference level is 0.02, the channel capacity is 7.07 bps/Hz.

Original languageEnglish
Title of host publication2021 4th International Seminar on Research of Information Technology and Intelligent Systems, ISRITI 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages7-11
Number of pages5
ISBN (Electronic)9781665401517
DOIs
Publication statusPublished - 2021
Event4th International Seminar on Research of Information Technology and Intelligent Systems, ISRITI 2021 - Virtual, Yogyakarta, Indonesia
Duration: 16 Dec 2021 → …

Publication series

Name2021 4th International Seminar on Research of Information Technology and Intelligent Systems, ISRITI 2021

Conference

Conference4th International Seminar on Research of Information Technology and Intelligent Systems, ISRITI 2021
Country/TerritoryIndonesia
CityVirtual, Yogyakarta
Period16/12/21 → …

Keywords

  • channel capacity
  • dynamic power allocation
  • interference
  • non-orthogonal multiple access
  • successive interference cancellation

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