2019/12/17 by Muhammad Amjad, Amjad, Muhammad, Leila Musavian +3
Engineering · #Advanced Wireless Communication Technologies #FOS: Computer and information sciences #FOS: Electrical engineering #Information Theory (cs.IT) #Optical Wireless Communication Technologies #PAPR reduction in OFDM #Signal Processing (eess.SP) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1912.08119
openalex publication_date 2019/12/17 · openalex created_date 2022/07/26 · openalex updated_date 2026/07/28
In this paper, we investigate the latency performance of non-orthogonal\nmultiple access (NOMA) and orthogonal multiple access (OMA) technologies in\nfinite blocklength regime. In the comparative study, we derive the achievable\neffective capacity of two-user NOMA and its OMA counterpart under delay\nquality-of-service constraints. We then obtain closed-form expressions for the\nachievable effective capacity of the weak and strong users in both scenarios\nconsidering transmissions over Rayleigh fading channels. Numerical results are\nprovided. In particular, it is shown that at low signal-to-noise ratios (SNRs),\nthe OMA user with better channel condition outperforms both NOMA users.\n blueWe also evaluate the impact of fixed power allocation scheme on the\nachievable effective capacity of two-user NOMA. The comparative analysis of\nthe total link-layer rate shows that at high SNRs, the total link-layer rate of\nNOMA with finite blocklength outperforms the one of OMA when the delay exponent\nis loose.\n