Joint user pairing and subchannel allocation for multisubchannel multiuser nonorthogonal multiple access systems
In this paper, we investigate the issues of joint user pairing and subchannel allocation (JUP-SA) in a multisubchannel multiuser nonorthogonal multiple access (NOMA) system. We first investigate the uplink and propose a JUP-SA scheme so that the minimum achievable diversity order of users is maximiz...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/142719 |
| _version_ | 1826129077998714880 |
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| author | Cheng, Yanyu Li, Kwok Hung Teh, Kah Chan Luo, Sheng |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Cheng, Yanyu Li, Kwok Hung Teh, Kah Chan Luo, Sheng |
| author_sort | Cheng, Yanyu |
| collection | NTU |
| description | In this paper, we investigate the issues of joint user pairing and subchannel allocation (JUP-SA) in a multisubchannel multiuser nonorthogonal multiple access (NOMA) system. We first investigate the uplink and propose a JUP-SA scheme so that the minimum achievable diversity order of users is maximized. By deriving the upper and lower bounds of the outage probability of the worst-performance user, the achievable diversity order of the scheme is obtained. Following this, the downlink of the system is considered and a JUP-SA scheme that maximizes the minimum diversity order is presented. The closed-form expression of the worst-case outage probability is then derived and validated by simulation results. Numerical results show that both schemes in uplink and downlink NOMA systems can achieve the same diversity order as that of exhaustive search. |
| first_indexed | 2024-10-01T07:34:50Z |
| format | Journal Article |
| id | ntu-10356/142719 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:34:50Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1427192020-06-29T02:58:57Z Joint user pairing and subchannel allocation for multisubchannel multiuser nonorthogonal multiple access systems Cheng, Yanyu Li, Kwok Hung Teh, Kah Chan Luo, Sheng School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Non-orthogonal Multiple Access Subchannel Allocation In this paper, we investigate the issues of joint user pairing and subchannel allocation (JUP-SA) in a multisubchannel multiuser nonorthogonal multiple access (NOMA) system. We first investigate the uplink and propose a JUP-SA scheme so that the minimum achievable diversity order of users is maximized. By deriving the upper and lower bounds of the outage probability of the worst-performance user, the achievable diversity order of the scheme is obtained. Following this, the downlink of the system is considered and a JUP-SA scheme that maximizes the minimum diversity order is presented. The closed-form expression of the worst-case outage probability is then derived and validated by simulation results. Numerical results show that both schemes in uplink and downlink NOMA systems can achieve the same diversity order as that of exhaustive search. 2020-06-29T02:58:57Z 2020-06-29T02:58:57Z 2018 Journal Article Cheng, Y., Li, K. H., Teh, K. C., & Luo, S. (2018). Joint user pairing and subchannel allocation for multisubchannel multiuser nonorthogonal multiple access systems. IEEE Transactions on Vehicular Technology, 67(9), 8238 - 8248. doi:10.1109/TVT.2018.2840680 0018-9545 https://hdl.handle.net/10356/142719 10.1109/TVT.2018.2840680 2-s2.0-85047625163 9 67 8238 8248 en IEEE Transactions on Vehicular Technology © 2018 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Non-orthogonal Multiple Access Subchannel Allocation Cheng, Yanyu Li, Kwok Hung Teh, Kah Chan Luo, Sheng Joint user pairing and subchannel allocation for multisubchannel multiuser nonorthogonal multiple access systems |
| title | Joint user pairing and subchannel allocation for multisubchannel multiuser nonorthogonal multiple access systems |
| title_full | Joint user pairing and subchannel allocation for multisubchannel multiuser nonorthogonal multiple access systems |
| title_fullStr | Joint user pairing and subchannel allocation for multisubchannel multiuser nonorthogonal multiple access systems |
| title_full_unstemmed | Joint user pairing and subchannel allocation for multisubchannel multiuser nonorthogonal multiple access systems |
| title_short | Joint user pairing and subchannel allocation for multisubchannel multiuser nonorthogonal multiple access systems |
| title_sort | joint user pairing and subchannel allocation for multisubchannel multiuser nonorthogonal multiple access systems |
| topic | Engineering::Electrical and electronic engineering Non-orthogonal Multiple Access Subchannel Allocation |
| url | https://hdl.handle.net/10356/142719 |
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