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TIIS (Çѱ¹ÀÎÅͳÝÁ¤º¸ÇÐȸ)
TIIS (Çѱ¹ÀÎÅͳÝÁ¤º¸ÇÐȸ)
Current Result Document :
1
/ 4
´ÙÀ½°Ç
ÇѱÛÁ¦¸ñ(Korean Title)
Performance Analysis and Power llocation for NOMA-assisted Cloud Radio ccess Network
¿µ¹®Á¦¸ñ(English Title)
Performance Analysis and Power llocation for NOMA-assisted Cloud Radio ccess Network
ÀúÀÚ(Author)
Fangcheng Xu
Xiangbin Yu
Weiye Xu
Jiali Cai
¿ø¹®¼ö·Ïó(Citation)
VOL 15 NO. 03 PP. 1174 ~ 1192 (2021. 03)
Çѱ۳»¿ë
(Korean Abstract)
¿µ¹®³»¿ë
(English Abstract)
With the assistance of non-orthogonal multiple access (NOMA), the spectrum efficiency and the number of users in cloud radio access network (CRAN) can be greatly improved. In this paper, the system performance of NOMA-assisted CRAN is investigated. Specially, the outage probability (OP) and ergodic sum rate (ESR), are derived for performance evaluation of the system, respectively. Based on this, by minimizing the OP of the system, a suboptimal power allocation (PA) scheme with closed-form PA coefficients is proposed. Numerical simulations validate the accuracy of the theoretical results, where the derived OP has more accuracy than the existing one. Moreover, the developed PA scheme has superior performance over the conventional fixed PA scheme but has smaller performance loss than the optimal PA scheme using the exhaustive search method.
Å°¿öµå(Keyword)
Cloud Radio Access Networks
Ergodic Sum Rate
Non-Orthogonal Multiple Access
Power Allocation
Outage Probability
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