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基于泊松网络的可见光信道建模与信干噪比计算
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作者 权进国 张岩 金爽 《微处理机》 2016年第4期30-33,共4页
Poisson随机网络是近几年来常见的无线网络及信道建模工具之一,它能够将网络建模为空间中的泊松随机过程场。利用Poisson随机网络对可见光信道进行建模,详细推导了信道的平均信干噪比的近似解析表达式,并且通过数值仿真验证了其正确性... Poisson随机网络是近几年来常见的无线网络及信道建模工具之一,它能够将网络建模为空间中的泊松随机过程场。利用Poisson随机网络对可见光信道进行建模,详细推导了信道的平均信干噪比的近似解析表达式,并且通过数值仿真验证了其正确性和有效性。从仿真结果可以看出,当近似条件得到满足的情况下,使用实际SINR计算得到的曲线和使用文中给出的SINR近似估计得到的曲线几乎完全重合;当近似条件不满足时,估值和真实值存在一些误差,但是曲线的趋势基本相同。这一工作为进一步研究可见光通信的网络容量、中断概率和覆盖概率等重要性能打下了基础。 展开更多
关键词 室内可见光通信 Poisson随机网络 信干噪比(sinr) 信道建模 泊松点过程 路径损耗
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5G Oriented Exponential Effective Signal to Interference plus Noise Ratio Mapping Algorithm Based on Channel Classification
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作者 WU Haoran YE Jianfang 《Journal of Donghua University(English Edition)》 EI CAS 2018年第2期160-162,共3页
In the future the fifth generation( 5 G) communication systems,channel models may be very complicated and it is difficult to calculate equivalent signal to interference plus noise ratio( SINR)of a random fading channe... In the future the fifth generation( 5 G) communication systems,channel models may be very complicated and it is difficult to calculate equivalent signal to interference plus noise ratio( SINR)of a random fading channel. Therefore,methods for the calculation of equivalent SINR of a random fading channel are very necessary.In this paper,an enhanced algorithm on the exponential effective SINR mapping( EESM) model for random fading channels was proposed. First, the optimal adjustment parameters of typical channel fading models including extended pedestrian A( EPA)model,extended vehicular A( EVA) model and extended typical urban( ETU) model were obtained by simulation. Then the proposed solution was used to actualize channel classification according to the maximum multipath delay and the average power of the random channel. The solution can determine the typical channel closest to random channel for obtaining the optimal adjustment value of EESM. The evaluation results indicate that the proposed one can improve the whole system throughput significantly and meanwhile the accuracy of the link prediction algorithm is also guaranteed. 展开更多
关键词 the fifth generation (5G) signal to interference PLUS noiseratio (sinr) EXPONENTIAL EFFECTIVE sinr mapping (EESM) channel classification
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