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异构无线网络中新的成本感知网络切换方案 被引量:5
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作者 马彬 汪栋 谢显中 《电子学报》 EI CAS CSCD 北大核心 2018年第5期1227-1233,共7页
针对异构无线网络中用户希望通过较低的花费获取最满意的网络服务的需求,本文提出了一种以用户为中心的成本感知网络切换方案.首先,根据用户能够获取到的网络传输速率建立用户服务满足度模型,并结合归一化的网络费用,将网络切换问题转... 针对异构无线网络中用户希望通过较低的花费获取最满意的网络服务的需求,本文提出了一种以用户为中心的成本感知网络切换方案.首先,根据用户能够获取到的网络传输速率建立用户服务满足度模型,并结合归一化的网络费用,将网络切换问题转化为一个多目标优化问题.考虑到网络阻塞是由于大量用户同时选择同一个网络导致的,将这种背景下的用户决策行为转化为EI Farol酒吧问题,通过求解该问题纳什均衡状态下的用户获取网络服务的概率来得到用户服务满足度的期望值.最后,通过考虑用户服务满足度回报率将所构建的多目标优化问题转化为一个最大化问题.仿真结果表明本文算法能够提高网络总吞吐量,降低用户切换阻塞率,使网络负载更加均衡. 展开更多
关键词 异构无线网络 垂直切换 EIfarol 成本感知
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Identification of Areas of Econophysical Models Application 被引量:1
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作者 Piotr Mlodzianowski Daniel Mlodzianowski 《Economics World》 2018年第1期34-44,共11页
The article presents results of reflections on practical applications of econophysical models in different fields and areas of the management support and answers the question: In what areas and scopes of the manageme... The article presents results of reflections on practical applications of econophysical models in different fields and areas of the management support and answers the question: In what areas and scopes of the management process is usage of econophysical models already effective or very likely to be effective? It discusses the problem of gravity models and minority games used in economic and social sciences. Their applications in areas such as trade, transport, analysis of financial market fluctuations, or decision making are presented. An attempt is made to identify missing pieces in the area of broadly understood management, and possible directions for further research are suggested. The paper uses research methods such as desk research and literature review. 展开更多
关键词 gravity model minority game E1 farol bar problem ECONOPHYSICS management ECONOMICS
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Some Remarks About Financial Market Modelling Using a Minority Game Approach
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作者 Ewa Drabik Piotr Mtodzianowski 《Economics World》 2016年第5期216-223,共8页
The methods adopted by static physics corroborating the existence of electromagnetic forces are applicable to the theory of financial markets. Perceived from a classically physical angle, the financial market is defin... The methods adopted by static physics corroborating the existence of electromagnetic forces are applicable to the theory of financial markets. Perceived from a classically physical angle, the financial market is defined as a system composed of several individual entries cooperating upon electromagnetic principles. The approach concerned gives rise to a certain model of financial market, otherwise known as a minority game. In the case of minority game, the allocation of securities and funds is conditioned exclusively upon the fluctuation of prices, where a higher tendency to purchase goods and stocks results in the scale being more profitable and vice versa. Thus players from a minority group gain a prevailing position. 展开更多
关键词 modelling of financial markets minority game El farol bar problem
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