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您的检索式：关键字=interference channel
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| 1 | Performance Analysis and Simulation of Higher Order Modulations for Ka-Band Fixed Satellite Communication显示文摘The performance analysis and simulation of spectrally efficient modulation schemes, MPSK andMQAM, for Ka-band fixed satellite communication system are provided. The effects of bandwidth limitation,nonlinearityity distortion and adjacent channel interference (ACI)in Ka-band satellite channel corrupted byadditive white Gaussian noise(AWGN)are taken into account. The analytical expressions of the BER of | 王爱华 汪春霆 | 2003 | Journal of Beijing Institute of Technology2003，12，S1： | 4 |
| 2 | Water Vapor Interference Correction in a Non Dispersive Infrared Multi-Gas Analyzer显示文摘We demonstrate an effective method to eliminate the interfering effect of water vapor in a non-dispersive infrared multi-gas analyzer.The response coefficients of water vapor at each filter channel are measured from the humidity of the ambient air.Based on the proposed method,the water vapor interference is corrected with the measured response coefficients.By deducting the absorbance of each filter channel related to water vapor,the measuring precision of the analyzer is improved significantly and the concentration retrieval correlation accuracy of each target gas is more than 99%. | 孙友文 刘文清 曾议 汪世美 黄书华 谢品华 于晓曼 | 2011 | Chinese Physics Letters2011，28，7： | 0 |
| 3 | 5G Oriented Exponential Effective Signal to Interference plus Noise Ratio Mapping Algorithm Based on Channel Classification显示文摘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. | 吴浩然 叶建芳 | 2018 | Journal of Donghua University(English Edition)2018，35，2： | 0 |
| 4 | User Selection Algorithms for Lowering Cross-Tier Interference in Heterogeneous Network显示文摘To lower the cross-tier intercell interference(ICI) between macrocell and microcell,three user selection algorithms for the heterogeneous network were proposed in this paper, assuming full knowledge of channelstate information at the transmitter. Algorithm 1 chooses microcell users whose interference channel matrix is parallel to that of a known user and targets at increasing user SINR. Algorithm 2 takes effect of chordal distance-channel norm balance on the system into account and predetermines the available user set from which it can choose service users. With comprehensive considerations to effect of interference signal and useful signal on system, Algorithm 3 set a weighting function as the objective function of user selection. Simulation results demonstrated that all three proposed algorithms could achieve user diversity gain while lowering cross-tier interference. | CHE Linlin HAO Conghui HAN Dongsheng CHEN Zhixiong | 2016 | China Communications2016，13，S1： | 0 |
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