Multi-Relay Non-Orthogonal Multiple Access Network With Cache-Enabled Users
This paper investigates the multi-relay non-orthogonal multiple access (NOMA) networks with cache-enabled users, in which the source transmits superimposed signals to two users, assisted by N relays. We firstly analyze traditional cooperative-NOMA networks, and then discuss the cooperative-NOMA netw...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8835911/ |
| _version_ | 1818566017794703360 |
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| author | Hao Liu Weicong Li Bowen Lu Xutao Li |
| author_facet | Hao Liu Weicong Li Bowen Lu Xutao Li |
| author_sort | Hao Liu |
| collection | DOAJ |
| description | This paper investigates the multi-relay non-orthogonal multiple access (NOMA) networks with cache-enabled users, in which the source transmits superimposed signals to two users, assisted by N relays. We firstly analyze traditional cooperative-NOMA networks, and then discuss the cooperative-NOMA networks with cache-enabled users. Moreover, the analytical expression of outage probability for the proposed network is derived, as well as the asymptotic expression. According to the asymptotic outage probability, we obtain that the diversity order is equal to the amount of relays N. Furthermore, increasing the file hit probability can enhance the transmission performance of the system. Finally, numerical as well as simulation results are presented to validate our analysis. |
| first_indexed | 2024-12-14T01:48:20Z |
| format | Article |
| id | doaj.art-24464d8e486d4f87adb214717a0b87d7 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-14T01:48:20Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-24464d8e486d4f87adb214717a0b87d72022-12-21T23:21:28ZengIEEEIEEE Access2169-35362019-01-01713309013309910.1109/ACCESS.2019.29409768835911Multi-Relay Non-Orthogonal Multiple Access Network With Cache-Enabled UsersHao Liu0https://orcid.org/0000-0002-1463-2602Weicong Li1https://orcid.org/0000-0002-9633-0068Bowen Lu2Xutao Li3Department of Electronic Engineering, Shantou University, Shantou, ChinaDepartment of Electronic Engineering, Shantou University, Shantou, ChinaDepartment of Electronic Engineering, Shantou University, Shantou, ChinaDepartment of Electronic Engineering, Shantou University, Shantou, ChinaThis paper investigates the multi-relay non-orthogonal multiple access (NOMA) networks with cache-enabled users, in which the source transmits superimposed signals to two users, assisted by N relays. We firstly analyze traditional cooperative-NOMA networks, and then discuss the cooperative-NOMA networks with cache-enabled users. Moreover, the analytical expression of outage probability for the proposed network is derived, as well as the asymptotic expression. According to the asymptotic outage probability, we obtain that the diversity order is equal to the amount of relays N. Furthermore, increasing the file hit probability can enhance the transmission performance of the system. Finally, numerical as well as simulation results are presented to validate our analysis.https://ieeexplore.ieee.org/document/8835911/NOMAcache-enabled usersoutage probability |
| spellingShingle | Hao Liu Weicong Li Bowen Lu Xutao Li Multi-Relay Non-Orthogonal Multiple Access Network With Cache-Enabled Users IEEE Access NOMA cache-enabled users outage probability |
| title | Multi-Relay Non-Orthogonal Multiple Access Network With Cache-Enabled Users |
| title_full | Multi-Relay Non-Orthogonal Multiple Access Network With Cache-Enabled Users |
| title_fullStr | Multi-Relay Non-Orthogonal Multiple Access Network With Cache-Enabled Users |
| title_full_unstemmed | Multi-Relay Non-Orthogonal Multiple Access Network With Cache-Enabled Users |
| title_short | Multi-Relay Non-Orthogonal Multiple Access Network With Cache-Enabled Users |
| title_sort | multi relay non orthogonal multiple access network with cache enabled users |
| topic | NOMA cache-enabled users outage probability |
| url | https://ieeexplore.ieee.org/document/8835911/ |
| work_keys_str_mv | AT haoliu multirelaynonorthogonalmultipleaccessnetworkwithcacheenabledusers AT weicongli multirelaynonorthogonalmultipleaccessnetworkwithcacheenabledusers AT bowenlu multirelaynonorthogonalmultipleaccessnetworkwithcacheenabledusers AT xutaoli multirelaynonorthogonalmultipleaccessnetworkwithcacheenabledusers |