近年来深圳市R&D经费快速增长,用于基础研究资金的投入也逐年增加。本文首先综合分析和研究了美国国立卫生研究院(National Institutes of Health,简称NIH)、美国国家科学基金会(National Science Foundation,简称NSF)和国家自然科...近年来深圳市R&D经费快速增长,用于基础研究资金的投入也逐年增加。本文首先综合分析和研究了美国国立卫生研究院(National Institutes of Health,简称NIH)、美国国家科学基金会(National Science Foundation,简称NSF)和国家自然科学基金委(National Science Foundation of China,简称NSFC)的科技项目评审制度和评价体系,在此基础上,结合深圳市的具体情况,将现行的深圳市科技项目评审制度和评价体系同NIH、NSF、NSFC等系统进行比较分析,为改革提供借鉴和参考。随着中国全面深化改革的推进,促进科技发展在社会其他领域尤其是经济领域发挥更大的作用,成为科技体制改革过程中的迫切要求。NIH和NSF的项目采取不定期申报的方式,我国现有的科技项目大部分采用集中期申报方式,两国管理机构赋予管理人员的管理权限不同。深圳市随着R&D经费的快速增长,用于基础研究资金的投入也逐年增加,加强科学研究与教育的紧密结合、把卓越管理的理念切实落到实处是亟需解决的问题。本文的研究将通过研究两国的科技资助管理政策,分析管理机构在制度建设、考核的全面性与连续性、科技信息管理等方面的特点,结合深圳市科技评价体系的发展情况,提出进一步完善科技评价制度政策体系,突出科技评价重点指标,加强科技评价的全面性及连续性的建议。以充分发挥科技评价的指导和引导作用。展开更多
This paper addresses the power con- trol problems of Cognitive Radio （CR） trader transmission power and interference tempera- ture constraints. First, we propose the interfer- ence constraint which ensures that the ...This paper addresses the power con- trol problems of Cognitive Radio （CR） trader transmission power and interference tempera- ture constraints. First, we propose the interfer- ence constraint which ensures that the Quality of Service （QoS） standards for primary users is considered and a non-cooperative game power control model. Based on the proposed model, we developed a logical utility function based on the Signal-to-Interference-Noise Ratio （S/NR） and a novel algorithm network power control. that is suitable for CR Then, the existence and uniqueness of the Nash Equilibrium （NE） in our utility function are proved by the principle of game theory and the corresponding optimi- zations. Compared to traditional algorithms, the proposed one could converge to an NE in 3-5 iterative operations by setting an appropriate pricing factor. Finally, simulation results ver- ified the stability and superiority of the novel algorithm in flat-fading channel environments.展开更多
In this paper,we propose a cooperative spectrum sharing strategy based on the Nash bargaining solution.Specifically,the primary system leases a fraction of its transmission time to the secondary system in exchange for...In this paper,we propose a cooperative spectrum sharing strategy based on the Nash bargaining solution.Specifically,the primary system leases a fraction of its transmission time to the secondary system in exchange for cooperation to improve its transmission performance.To gain access to the spectrum of the primary system,the secondary system needs to split a fraction of its transmission bandwidth to help to forward the primary signal.As a reward,the secondary system can use the remaining bandwidth to transmit its own signal.We find a unique solution for this time and bandwidth allocation using the Nash bargaining solution.Simulation results demonstrate that the performance of the primary and secondary systems can both be improved by the proposed spectrum sharing strategy.展开更多
文摘近年来深圳市R&D经费快速增长,用于基础研究资金的投入也逐年增加。本文首先综合分析和研究了美国国立卫生研究院(National Institutes of Health,简称NIH)、美国国家科学基金会(National Science Foundation,简称NSF)和国家自然科学基金委(National Science Foundation of China,简称NSFC)的科技项目评审制度和评价体系,在此基础上,结合深圳市的具体情况,将现行的深圳市科技项目评审制度和评价体系同NIH、NSF、NSFC等系统进行比较分析,为改革提供借鉴和参考。随着中国全面深化改革的推进,促进科技发展在社会其他领域尤其是经济领域发挥更大的作用,成为科技体制改革过程中的迫切要求。NIH和NSF的项目采取不定期申报的方式,我国现有的科技项目大部分采用集中期申报方式,两国管理机构赋予管理人员的管理权限不同。深圳市随着R&D经费的快速增长,用于基础研究资金的投入也逐年增加,加强科学研究与教育的紧密结合、把卓越管理的理念切实落到实处是亟需解决的问题。本文的研究将通过研究两国的科技资助管理政策,分析管理机构在制度建设、考核的全面性与连续性、科技信息管理等方面的特点,结合深圳市科技评价体系的发展情况,提出进一步完善科技评价制度政策体系,突出科技评价重点指标,加强科技评价的全面性及连续性的建议。以充分发挥科技评价的指导和引导作用。
基金partially supported by the National Natural Science Foundation of China under Grant No.61172073the Open Research Fund of National Mobile Communications Research Laboratory,Southeast University under Grant No.2012D19+1 种基金the Fundamental Research Funds for the Central Universities,Beijing Jiaotong University under Grant No.2013JBZ01the Program for New Century Excellent Talents in University of Ministry of Education of China under Grant No.NCET-12-0766
文摘This paper addresses the power con- trol problems of Cognitive Radio （CR） trader transmission power and interference tempera- ture constraints. First, we propose the interfer- ence constraint which ensures that the Quality of Service （QoS） standards for primary users is considered and a non-cooperative game power control model. Based on the proposed model, we developed a logical utility function based on the Signal-to-Interference-Noise Ratio （S/NR） and a novel algorithm network power control. that is suitable for CR Then, the existence and uniqueness of the Nash Equilibrium （NE） in our utility function are proved by the principle of game theory and the corresponding optimi- zations. Compared to traditional algorithms, the proposed one could converge to an NE in 3-5 iterative operations by setting an appropriate pricing factor. Finally, simulation results ver- ified the stability and superiority of the novel algorithm in flat-fading channel environments.
基金supported by the National Natural Science Foundation of China under Grants No.61372087,No.61303235the Zhejiang Leading Team of Science and Technology Innovation on Modem Communication and Network System under Grant No.2010R50011the Project of the Zhejiang Provincial Science and Technology Department under Grant No.Y201329389
文摘In this paper,we propose a cooperative spectrum sharing strategy based on the Nash bargaining solution.Specifically,the primary system leases a fraction of its transmission time to the secondary system in exchange for cooperation to improve its transmission performance.To gain access to the spectrum of the primary system,the secondary system needs to split a fraction of its transmission bandwidth to help to forward the primary signal.As a reward,the secondary system can use the remaining bandwidth to transmit its own signal.We find a unique solution for this time and bandwidth allocation using the Nash bargaining solution.Simulation results demonstrate that the performance of the primary and secondary systems can both be improved by the proposed spectrum sharing strategy.
