Theoretical Analysis of the Dynamic Decode Ordering SIC Receiver for Uplink NOMA Systems

Theoretical Analysis of the Dynamic Decode Ordering SIC Receiver for Uplink NOMA Systems
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上行NOMA系统动态解码排序SIC接收机的理论分析

DOI:
10.1109/lcomm.2017.2720582
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发表时间:
2017-06
期刊:
IEEE COMMUNICATIONS LETTERS
影响因子:
--
通讯作者:
Sha Zhang
Sha Zhang
中科院分区:
其他
文献类型:
--
作者:
Yichen Gao;Bin Xia;Kexin Xiao;Zhiyong Chen;Xiaofan Li;Sha Zhang

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针对基于统计信道状态信息(CSI)的固定译码顺序的上行非正交多址系统,本文重点研究了基于瞬时信道状态信息的动态译码顺序。在对具有不同发射功率和不同路径损耗的所有用户的信道波动进行建模后,提出了一种基于不同用户瞬时接收功率的动态SIC接收机。从理论上分析了该系统的中断概率,并推导了三用户系统的封闭表达式。通过仿真验证了理论结果的准确性。
Instead of successive interference cancellation (SIC) for uplink non-orthogonal multiple access systems with fixed decoding order based on the statistical channel state information (CSI), we focus on decoding with the dynamic order according to the instantaneous CSI. After modeling the channel fluctuation of all the users with different transmit powers and different path losses, a dynamic SIC receiver is proposed based on the instantaneous received power of different users. The outage probability of the proposed system is theoretically analyzed and the closed-form expressions for a three-user system are derived. Simulations are performed to validate the accuracy of the theoretical results.
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