Outage Analysis for Downlink Non-Orthogonal Multiple Access (NOMA) with CDF-Based Scheduling

Byungju Lim; Sung Sik Nam; Young Chai Ko; Mohamed Slim Alouini

doi:10.1109/LWC.2020.2971492

Outage Analysis for Downlink Non-Orthogonal Multiple Access (NOMA) with CDF-Based Scheduling

Byungju Lim, Sung Sik Nam, Young Chai Ko, Mohamed Slim Alouini

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

In this letter, we statistically analyze the outage performance of non-orthogonal multiple access (NOMA) with CDF-based scheduling (CS) over Nakagami-m fading channels. Based on our system model assumptions, CS selects the multiple users based on CDF of channel gain, which guarantees fair resource allocation. With this CS algorithm, the closed-form of outage is derived to show the effect of CS. Specifically, we first analyze the selection probability of each user and, via the derived distribution results, statistically investigate the outage performance when two users are selected. In addition, we obtain the diversity order that is affected by both the weights of each user and the m parameter of Nakagami-m fading channel. Our analytical results are thoroughly validated by cross-checking them against the results obtained via the Monte-Carlo simulations. Some selected results show that CS exploits multiuser diversity.

Original language	English
Article number	8982077
Pages (from-to)	822-825
Number of pages	4
Journal	IEEE Wireless Communications Letters
Volume	9
Issue number	6
DOIs	https://doi.org/10.1109/LWC.2020.2971492
Publication status	Published - 2020 Jun

Keywords

CDF-based scheduling
NOMA
Nakagami-m fading
diversity order
outage

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

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10.1109/LWC.2020.2971492

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title = "Outage Analysis for Downlink Non-Orthogonal Multiple Access (NOMA) with CDF-Based Scheduling",

abstract = "In this letter, we statistically analyze the outage performance of non-orthogonal multiple access (NOMA) with CDF-based scheduling (CS) over Nakagami-m fading channels. Based on our system model assumptions, CS selects the multiple users based on CDF of channel gain, which guarantees fair resource allocation. With this CS algorithm, the closed-form of outage is derived to show the effect of CS. Specifically, we first analyze the selection probability of each user and, via the derived distribution results, statistically investigate the outage performance when two users are selected. In addition, we obtain the diversity order that is affected by both the weights of each user and the m parameter of Nakagami-m fading channel. Our analytical results are thoroughly validated by cross-checking them against the results obtained via the Monte-Carlo simulations. Some selected results show that CS exploits multiuser diversity.",

keywords = "CDF-based scheduling, NOMA, Nakagami-m fading, diversity order, outage",

author = "Byungju Lim and Nam, {Sung Sik} and Ko, {Young Chai} and Alouini, {Mohamed Slim}",

note = "Funding Information: Manuscript received January 15, 2020; accepted January 27, 2020. Date of publication February 4, 2020; date of current version June 10, 2020. This work was supported by a grant-in-aid of HANWHA SYSTEMS. The associate editor coordinating the review of this article and approving it for publication was C. Huang. (Sung Sik Nam is co-first author.) (Corresponding author: Young-Chai Ko.) Byungju Lim and Young-Chai Ko are with the School of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: limbj93@korea.ac.kr; koyc@korea.ac.kr). Publisher Copyright: {\textcopyright} 2020 IEEE.",

year = "2020",

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doi = "10.1109/LWC.2020.2971492",

language = "English",

volume = "9",

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AU - Alouini, Mohamed Slim

N1 - Funding Information: Manuscript received January 15, 2020; accepted January 27, 2020. Date of publication February 4, 2020; date of current version June 10, 2020. This work was supported by a grant-in-aid of HANWHA SYSTEMS. The associate editor coordinating the review of this article and approving it for publication was C. Huang. (Sung Sik Nam is co-first author.) (Corresponding author: Young-Chai Ko.) Byungju Lim and Young-Chai Ko are with the School of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: limbj93@korea.ac.kr; koyc@korea.ac.kr). Publisher Copyright: © 2020 IEEE.

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N2 - In this letter, we statistically analyze the outage performance of non-orthogonal multiple access (NOMA) with CDF-based scheduling (CS) over Nakagami-m fading channels. Based on our system model assumptions, CS selects the multiple users based on CDF of channel gain, which guarantees fair resource allocation. With this CS algorithm, the closed-form of outage is derived to show the effect of CS. Specifically, we first analyze the selection probability of each user and, via the derived distribution results, statistically investigate the outage performance when two users are selected. In addition, we obtain the diversity order that is affected by both the weights of each user and the m parameter of Nakagami-m fading channel. Our analytical results are thoroughly validated by cross-checking them against the results obtained via the Monte-Carlo simulations. Some selected results show that CS exploits multiuser diversity.

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Outage Analysis for Downlink Non-Orthogonal Multiple Access (NOMA) with CDF-Based Scheduling

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Keywords

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