TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
Coordinated Direct and Relayed Transmission based on NOMA and Backscattering |
| 영문제목(English Title) |
Coordinated Direct and Relayed Transmission based on NOMA and Backscattering |
| 저자(Author) |
Zhaoxi Fang
Yingzhi Lu
Jing Zhou
Qi Li
Haiyan Sh
|
| 원문수록처(Citation) |
VOL 16 NO. 09 PP. 3124 ~ 3137 (2022. 09) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
We propose a spectral-efficient coordinated direct and relayed transmission (CDRT) scheme for a relay-assisted downlink system with two users. The proposed scheme is based on backscatter communication (BC) and non-orthogonal multiple access (NOMA) technique. With the proposed BC-NOMA-CDRT scheme, both users can receive one packet within one time slot. In contrast, in existing NOMA-CDRT schemes, the far user is only able to receive one packet in two time slots due to the half-duplex operation of the relay. We investigate the outage of the BC-NOMA-CDRT scheme, and derive the outage probability expressions in closed-form based on Gamma distribution approximation and Gaussian approximation. Numerical results show that the analytical results are accurate and the BC-NOMA-CDRT scheme outperforms the conventional NOMA-CDRT significantly. |
| 키워드(Keyword) |
Backscatter communication
oordinated direct and relayed transmission
NOMA
|
| 파일첨부 |
PDF 다운로드
|
