On the performance of receiver strategies for cooperative relaying cellular networks with NOMA
Abstract In this paper, a receiver scheme for a cooperative multi-relay system with non-orthogonal multiple access (CMRS-NOMA) in cellular networks is proposed. In our proposed system, the base station (BS) would like to communicate with multiple users via multiple relays, and direct links between t...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-03-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s13638-019-1377-5 |
| _version_ | 1818979019427676160 |
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| author | Jinjuan Ju Guoan Zhang Qiang Sun Li Jin Wei Duan |
| author_facet | Jinjuan Ju Guoan Zhang Qiang Sun Li Jin Wei Duan |
| author_sort | Jinjuan Ju |
| collection | DOAJ |
| description | Abstract In this paper, a receiver scheme for a cooperative multi-relay system with non-orthogonal multiple access (CMRS-NOMA) in cellular networks is proposed. In our proposed system, the base station (BS) would like to communicate with multiple users via multiple relays, and direct links between the BS and users are not considered. Specifically, we assume that the relays in the approaching range are allowed to assist the transmission since other relays are out of the cooperation range. In this way, each user and the corresponding relays can be implemented as one group. In addition, the source simultaneously transmits the superposition coded signals to all relay nodes. After receiving the signals, all the relay nodes decode the symbols by applying successive interference cancellation (SIC) and then reconstruct them into new NOMA signals, which will be forwarded to the users and decoded in a linear combination way. Note that the proposed reconstructions at the relay nodes are practical and simple, which leads to an advantageous decoding for the receivers. Moreover, the closed-form expressions in terms of the sum rate (SR) and the outage performance of the system are derived. Qualitative numerical results corroborating our theoretical analysis show that the proposed scheme significantly improves the performance in terms of the SR and outage probability compared with the existing works. |
| first_indexed | 2024-12-20T16:52:52Z |
| format | Article |
| id | doaj.art-adaf6c18aaec4414a3c0d49d29b0530d |
| institution | Directory Open Access Journal |
| issn | 1687-1499 |
| language | English |
| last_indexed | 2024-12-20T16:52:52Z |
| publishDate | 2019-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Wireless Communications and Networking |
| spelling | doaj.art-adaf6c18aaec4414a3c0d49d29b0530d2022-12-21T19:32:48ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14992019-03-012019111410.1186/s13638-019-1377-5On the performance of receiver strategies for cooperative relaying cellular networks with NOMAJinjuan Ju0Guoan Zhang1Qiang Sun2Li Jin3Wei Duan4School of Information Science and Technology, Nantong UniversitySchool of Information Science and Technology, Nantong UniversitySchool of Information Science and Technology, Nantong UniversitySchool of Information Science and Technology, Nantong UniversitySchool of Information Science and Technology, Nantong UniversityAbstract In this paper, a receiver scheme for a cooperative multi-relay system with non-orthogonal multiple access (CMRS-NOMA) in cellular networks is proposed. In our proposed system, the base station (BS) would like to communicate with multiple users via multiple relays, and direct links between the BS and users are not considered. Specifically, we assume that the relays in the approaching range are allowed to assist the transmission since other relays are out of the cooperation range. In this way, each user and the corresponding relays can be implemented as one group. In addition, the source simultaneously transmits the superposition coded signals to all relay nodes. After receiving the signals, all the relay nodes decode the symbols by applying successive interference cancellation (SIC) and then reconstruct them into new NOMA signals, which will be forwarded to the users and decoded in a linear combination way. Note that the proposed reconstructions at the relay nodes are practical and simple, which leads to an advantageous decoding for the receivers. Moreover, the closed-form expressions in terms of the sum rate (SR) and the outage performance of the system are derived. Qualitative numerical results corroborating our theoretical analysis show that the proposed scheme significantly improves the performance in terms of the SR and outage probability compared with the existing works.http://link.springer.com/article/10.1186/s13638-019-1377-5Cooperative multi-relay system (CMRS)Non-orthogonal multiple access (NOMA)Sum rate (SR)Outage performance |
| spellingShingle | Jinjuan Ju Guoan Zhang Qiang Sun Li Jin Wei Duan On the performance of receiver strategies for cooperative relaying cellular networks with NOMA EURASIP Journal on Wireless Communications and Networking Cooperative multi-relay system (CMRS) Non-orthogonal multiple access (NOMA) Sum rate (SR) Outage performance |
| title | On the performance of receiver strategies for cooperative relaying cellular networks with NOMA |
| title_full | On the performance of receiver strategies for cooperative relaying cellular networks with NOMA |
| title_fullStr | On the performance of receiver strategies for cooperative relaying cellular networks with NOMA |
| title_full_unstemmed | On the performance of receiver strategies for cooperative relaying cellular networks with NOMA |
| title_short | On the performance of receiver strategies for cooperative relaying cellular networks with NOMA |
| title_sort | on the performance of receiver strategies for cooperative relaying cellular networks with noma |
| topic | Cooperative multi-relay system (CMRS) Non-orthogonal multiple access (NOMA) Sum rate (SR) Outage performance |
| url | http://link.springer.com/article/10.1186/s13638-019-1377-5 |
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