Outage-constrained robust power allocation for downlink MC-NOMA with imperfect SIC

In this paper, we study power allocation for downlink multi-carrier non-orthogonal multiple access (MC-NOMA) systems and examine the effects of residual cancellation errors resulting from imperfect successive interference cancellation (SIC) on the system performance. In the presence of random SIC er...

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Main Authors:	Shenhong Li, Mahsa Derakhshani, Sangarapillai Lambotharan
Format:	Default Conference proceeding
Published:	2018
Subjects:	Mechanical engineering not elsewhere classified MC-NOMA 5G Robust optimization Imperfect SIC Outage probability Complementary geometric programming Mechanical Engineering not elsewhere classified
Online Access:	https://hdl.handle.net/2134/28466
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id	rr-article-9559532
record_format	Figshare
spelling	rr-article-95595322018-01-01T00:00:00Z Outage-constrained robust power allocation for downlink MC-NOMA with imperfect SIC Shenhong Li (7210787) Mahsa Derakhshani (2572993) Sangarapillai Lambotharan (1252278) Mechanical engineering not elsewhere classified MC-NOMA 5G Robust optimization Imperfect SIC Outage probability Complementary geometric programming Mechanical Engineering not elsewhere classified In this paper, we study power allocation for downlink multi-carrier non-orthogonal multiple access (MC-NOMA) systems and examine the effects of residual cancellation errors resulting from imperfect successive interference cancellation (SIC) on the system performance. In the presence of random SIC errors, we study outage probability of minimum reserved rate for individual user and formulate outage-constrained robust optimization to minimize the total transmit power. Since the problem is non-convex due to probabilistic constraints, complementary geometric programming (CGP) and arithmetic geometric mean approximation (AGMA) technique are employed to transform it into a convex form. An efficient iterative algorithm with low computational complexity is developed to solve the optimization problem. Simulation results demonstrate the performance of robust MC-NOMA with imperfect SIC and compare that to non-robust MC-NOMA and orthogonal multiple access (OMA) schemes. 2018-01-01T00:00:00Z Text Conference contribution 2134/28466 https://figshare.com/articles/conference_contribution/Outage-constrained_robust_power_allocation_for_downlink_MC-NOMA_with_imperfect_SIC/9559532 CC BY-NC-ND 4.0
institution	Loughborough University
collection	Figshare
topic	Mechanical engineering not elsewhere classified MC-NOMA 5G Robust optimization Imperfect SIC Outage probability Complementary geometric programming Mechanical Engineering not elsewhere classified
spellingShingle	Mechanical engineering not elsewhere classified MC-NOMA 5G Robust optimization Imperfect SIC Outage probability Complementary geometric programming Mechanical Engineering not elsewhere classified Shenhong Li Mahsa Derakhshani Sangarapillai Lambotharan Outage-constrained robust power allocation for downlink MC-NOMA with imperfect SIC
description	In this paper, we study power allocation for downlink multi-carrier non-orthogonal multiple access (MC-NOMA) systems and examine the effects of residual cancellation errors resulting from imperfect successive interference cancellation (SIC) on the system performance. In the presence of random SIC errors, we study outage probability of minimum reserved rate for individual user and formulate outage-constrained robust optimization to minimize the total transmit power. Since the problem is non-convex due to probabilistic constraints, complementary geometric programming (CGP) and arithmetic geometric mean approximation (AGMA) technique are employed to transform it into a convex form. An efficient iterative algorithm with low computational complexity is developed to solve the optimization problem. Simulation results demonstrate the performance of robust MC-NOMA with imperfect SIC and compare that to non-robust MC-NOMA and orthogonal multiple access (OMA) schemes.
format	Default Conference proceeding
author	Shenhong Li Mahsa Derakhshani Sangarapillai Lambotharan
author_facet	Shenhong Li Mahsa Derakhshani Sangarapillai Lambotharan
author_sort	Shenhong Li (7210787)
title	Outage-constrained robust power allocation for downlink MC-NOMA with imperfect SIC
title_short	Outage-constrained robust power allocation for downlink MC-NOMA with imperfect SIC
title_full	Outage-constrained robust power allocation for downlink MC-NOMA with imperfect SIC
title_fullStr	Outage-constrained robust power allocation for downlink MC-NOMA with imperfect SIC
title_full_unstemmed	Outage-constrained robust power allocation for downlink MC-NOMA with imperfect SIC
title_sort	outage-constrained robust power allocation for downlink mc-noma with imperfect sic
publishDate	2018
url	https://hdl.handle.net/2134/28466
_version_	1797734834446008320

Outage-constrained robust power allocation for downlink MC-NOMA with imperfect SIC

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