ID 原文 译文
45076 将 NOMA 技术应用于下行认知中继协作网络， The non-orthogonal multiple access (NOMA) technology was studied in a downlink cognitive relay cooperation network.
45077 提出基于 AF 的认知多用户中继协作 NOMA 系统（CM-RC-NOMA），给出了不同认知中继协作方案下 PU 和 SU 中断性能，并推导了其闭合表达式； A cognitive multi-user relay cooperation based NOMA scheme was proposed (CM-RC-NOMA), in which,the outage performance of PU and SU were given under different cognitive relay cooperation schemes and the corresponding outage expressions were also derived.
45078 同时将 AF中继协作方式与 DF 中继协作方式进行了对比。 At the same time, the AF based relay cooperation method and the DF-based relay cooperation method were compared.
45079 仿真结果表明，当 SU 到 PU 信道链路条件不差于 BS 到 PU 信道链路条件时，AF 方式相比 DF 方式可以使 PU 获得更低的中断概率； The simulation results show that the lower outage of PU can be achieved by AF method compared with DF method, when the channel condition of BS to PU is no more than that of SU to PU.
45080 另一方面，所提最佳认知中继协作方案相比传统最佳认知中继协作方案可以获得更佳的 PU 中断性能。 It is also revealed that the optimal outage performance of PU can be achieved by the proposed best cognitive relay cooperation scheme in contrast to the traditional best cognitive relay cooperation scheme.
45081 针对感知节点能量和汇报信道带宽受限的认知无线电网络中协作频谱感知问题，提出了一种基于距离准则的优化量化器设计方法。 In terms of sensing node’s energy and reporting channel’s bandwidth constrains problem for cooperative spectrum sensing in cognitive radio networks, an optimal quantizer design method based on distance criterion was proposed.
45082 首先，计算融合中心接收的量化数据的巴氏距离(BD, Bhattacharyya distance)为性能准则，构建量化器的优化数学模型，采用粒子群优化算法求解得出最优量化阈值。 First of all, the Bhattacharyya distance of received quantized data at the fusion center (FC) was calculated as performance criteria, the optimization mathematical model of the quantizer was constructed, and the optimum quantization thresholds were obtained by using particle swarm optimization algorithm.
45083 根据融合中心接收的各感知节点的量化数据，构造对数似然比检测器，对是否存在主用户信号做出决策，最后推导了未量化条件下能量检测器的性能上界。 According to received sensing nodes’ quantized data at the FC, a log-likelihood ratio detector was constructed to decide the presence or absence of primary user signal, the upper-bound to sensing performance of energy detector that without quantization was derived.
45084 仿真实验结果与已有方法对比，所提出的 3 bit 量化方法的性能接近能量检测器的性能上界，在获得类似检测性能的前提下降低了对通信带宽的需求。 Compared with the existing methods in literatures, the performance of proposed 3-bit quantization method approaches to the upper bound performance of energy detector, under the premise of obtaining comparable detection performance, the requirement of commutation bandwidth is reduced.
45085 随着认知无线电的出现，盲编码器识别引起了广泛的关注。 As the advent of cognitive radios, blind encoder identification has attracted increasingly attentions since it plays an important role.