A Novel Spectrum Sharing Scheme Assisted by Secondary NOMA Relay
A Novel Spectrum Sharing Scheme Assisted by Secondary NOMA Relay
复制标题
二次 NOMA 中继辅助的新型频谱共享方案
DOI：
10.1109/lwc.2018.2817501
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发表时间：
2018
影响因子：
6.3
通讯作者：
Ding Zhiguo
中科院分区：
文献类型：
--
作者：
Chen Bingcai;Chen Yu;Chen Yunfei;Cao Yang;Zhao Nan;Ding Zhiguo
在这封信中，两个时隙的辅助非正交多址接入（NOMA）中继被用来协助频谱共享，其中主收发器与长距离通过中继通信。首先，经由NOMA中继器发送用于主接收机（PR）和辅接收机（SR）的信息。然后，用于PR的信息通过所选择的SR被重传到它，以使用最大比合并来提高其服务质量，而用于PR的下一个数据同时从主发射机发送到NOMA中继。推导了NOMA中继的功率分配方案。仿真结果表明了该方案的有效性。
In this letter, a two-slot secondary non-orthogonal multiple access (NOMA) relay is used to assist spectrum sharing, where the primary transceivers with long distance communicate through the relay. First, the information for the primary receiver (PR) and secondary receivers (SRs) is transmitted via the NOMA relay. Then, the information for PR is re-transmitted to it through a selected SR to improve its quality of service using maximal-ratio combining, while the next data for PR is sent from the primary transmitter to the NOMA relay simultaneously. The power allocation solution is derived for the NOMA relay. Simulation results have shown the effectiveness of the proposed scheme.