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| 1 | Hybrid pilots assisted channel estimation algorithm for MIMO-OFDM systems显示文摘A hybrid pilots assisted channel estimation algorithm for multiple input multiple output(MIMO) orthogonal frequency division multiplexing(OFDM) systems under low signal-to-noise ratio(SNR) and arbitrary Doppler spread scenarios is proposed.Motivated by the dissatisfactory performance of the optimal pilots(OPs) designed under static channels over multiple OFDM symbols imposed by fast fading channels,the proposed scheme first assumes that the virtual pilot tones superimposed at data locations over specific subcarriers are transmitted from all antennas,then the virtual received pilot signals at the corresponding locations can be obtained by making full use of the time and frequency domain correlations of the frequency responses of the time varying dispersive fading channels and the received signals at pilot subcarriers,finally the channel parameters are derived from the combination of the real and virtual received pilot signals over one OFDM symbol based on least square(LS) criterion.Simulation results illustrate that the proposed method is insensitive to Doppler spread and can effectively ameliorate the mean square error(MSE) floor inherent to the previous method,meanwhile its performance outmatches that of OPs at low SNR region under static channels. | Yang Zhang diandong Li Lihua Pang | 2010 | Journal of Systems Engineering and Electronics2010，21，5： | 4 |
| 2 | Advanced glycation in d -galactose induced mouse aging model显示文摘 | Xu Song Mingmin Bao Diandong Li Yong Ming Li | 1999 | Mechanisms of Ageing and Development1999，，3： | 2 |
| 3 | Advanced glycation in Dgalactose induced mouse aging model显示文摘 | Song Xu Bao Mingming Li Diandong | 1999 | Mechanisms of Ageing and Development1999，108，3： | 1 |
| 4 | Advanced glycation in D-galacrose induced mouse aging model 显示文摘 | Xu S Mingmin B Diandong L | 1999 | Mechanisms of Aging and Development1999，108，： | 1 |
| 5 | Advanced glycation in d -galactose induced mouse aging model显示文摘 | Xu Song Mingmin Bao Diandong Li Yong Ming Li | 1999 | Mechanisms of Ageing and Development1999，，3： | 1 |
| 6 | Effects of sleep and sleep deprivation on immunoglobulins and complement in humans 显示文摘 | Hui L Hua F Diandong H | 2007 | Brain Behav Immun2007，，3： | 1 |
| 7 | Advanced glycation in D-galactose induced mouse aging model显示文摘 | SONG Xu BAO Mingming LI Diandong | 1999 | Mechanisms of Ageing and Development1999，108，： | 1 |
| 8 | Advanced glycation in d -galactose induced mouse aging model显示文摘 | Xu Song Mingmin Bao Diandong Li Yong Ming Li | 1999 | Mechanisms of Ageing and Development1999，，3： | 1 |
| 9 | Advanced glycation in D-galactose induced mouse aging model显示文摘 | Song Xu Bao Mingmin Li Diandong | 1999 | Mechanism of Aging and Development1999，108，3： | 1 |
| 10 | taoping qiangzhai minas wenhua lvyou ziyuan shixi(Analysis on Folklore Cultural Tourism Resources of Qiang Village in Taoping)显示文摘 | Zhang Diandong | | 0，，08： | 1 |
| 11 | Effects of sleep and sleep deprivation on immunolobulins and complement in humans显示文摘 | Hui L Hua F Diandong H | 2007 | Brain Behav Immun2007，21，3： | 1 |
| 12 | Advanced glycation in d -galactose induced mouse aging model显示文摘 | Xu Song Mingmin Bao Diandong Li Yong Ming Li | 1999 | Mechanisms of Ageing and Development1999，，3： | 1 |
| 13 | Advanced glycation in D -galactose induced mouse aging model显示文摘 | Xu Song Mingmin Bao Diandong Li | 1999 | Mechanisms of Ageing and Development1999，108，： | 1 |
| 14 | Research Progresses on QTLs for Main Grain Shape Genes in Rice显示文摘The performance of rice quality affects the market competitiveness of rice to a certain extent,and grain shape is an important factor for yield traits and appearance quality.The mapping and cloning of major rice grain type genes were briefly reviewed,and the utilization of related genes in breeding was prospected. | Mengxi ZHOU Diandong WANG Zhen'an BAI Ying PENG | 2021 | Agricultural Biotechnology2021，10，6： | 0 |
| 15 | Study of Relay Node Selection Techniques for Cooperative Communication Networks显示文摘Emerging as a new communication paradigm,cooperative communication is attracting attention.Relay selection is the key technology for cooperative communication,and determines whether the performance gain of cooperation can be achieved.In this paper,we first give the performance evaluation metrics for relay selection algorithms,and then discuss the corresponding categories.Finally,some classical relay selection algorithms are analyzed.Results show that the relay node should be seriously selected and configured according to system requirements in order to optimize the performance of cooperative communication. | Zhang Yan Sheng Min Li diandong | 2010 | ZTE Communications2010，8，1： | 0 |
| 16 | MAC Protocols for Distributed Cooperative Communication Networks显示文摘Distributed cooperative networks use the cooperation among nodes to fulfill network resource sharing. However,designing an efficient Media Access Control (MAC) protocol is a key issue for the distributed cooperative network. Based on the principle of MAC-layer cooperation,this paper discusses problems and challenges for MAC protocol design in the distributed cooperative network. Through the analysis of typical cooperative MAC protocols and their performance,this paper concludes that only a reasonable MAC protocol design with the features and demands of distributed networks taken into account can make cooperative communication technology a better application in the distributed network. | Sheng Min Zhang Yan Li diandong | 2010 | ZTE Communications2010，8，2： | 0 |
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