近年来,各地旅游业迅猛发展,有的已经成为当地经济的重要支柱产业。但是,大多数旅游城市面临着旅游显目单一,环境污染,后劲儿发展不足的问题。将行动者网络理论引入研究城市旅游发展问题,旨在通过梳理行动者网络的基本框架,尝试构建城...近年来,各地旅游业迅猛发展,有的已经成为当地经济的重要支柱产业。但是,大多数旅游城市面临着旅游显目单一,环境污染,后劲儿发展不足的问题。将行动者网络理论引入研究城市旅游发展问题,旨在通过梳理行动者网络的基本框架,尝试构建城市旅游发展行动者网络,希望能给城市旅游发展带来新的活力。一、行动者网络理论框架行动者网络理论（ANT）又称为转译社会学（Sociology of Translation）,是法国学者拉图尔、卡龙等创立的,展开更多
In order to reduce cost and complexity,fiber-wireless(FiWi) networks emerge,combining the huge amount of available bandwidth of fiber networks and the flexibility,mobility of wireless networks.However,there is still a...In order to reduce cost and complexity,fiber-wireless(FiWi) networks emerge,combining the huge amount of available bandwidth of fiber networks and the flexibility,mobility of wireless networks.However,there is still a long way to go before taking fiber and wireless systems as fully integrated networks.In this paper,we propose a network visualization based seamless networking scheme for FiWi networks,including hierarchical model,service model,service implementation and dynamic bandwidth assignment(DBA).Then,we evaluate the performance changes after network virtualization is introduced.Throughput for nodes,bandwidth for links and overheads leaded by network virtualization are analyzed.The performance of our proposed networking scheme is evaluated by simulation and real implementations,respectively.The results show that,compared to traditional networking scheme,our scheme has a better performance.展开更多
文摘近年来,各地旅游业迅猛发展,有的已经成为当地经济的重要支柱产业。但是,大多数旅游城市面临着旅游显目单一,环境污染,后劲儿发展不足的问题。将行动者网络理论引入研究城市旅游发展问题,旨在通过梳理行动者网络的基本框架,尝试构建城市旅游发展行动者网络,希望能给城市旅游发展带来新的活力。一、行动者网络理论框架行动者网络理论（ANT）又称为转译社会学（Sociology of Translation）,是法国学者拉图尔、卡龙等创立的,
基金supported by National Natural Science Foundation of China under Grant No.61240040
文摘In order to reduce cost and complexity,fiber-wireless(FiWi) networks emerge,combining the huge amount of available bandwidth of fiber networks and the flexibility,mobility of wireless networks.However,there is still a long way to go before taking fiber and wireless systems as fully integrated networks.In this paper,we propose a network visualization based seamless networking scheme for FiWi networks,including hierarchical model,service model,service implementation and dynamic bandwidth assignment(DBA).Then,we evaluate the performance changes after network virtualization is introduced.Throughput for nodes,bandwidth for links and overheads leaded by network virtualization are analyzed.The performance of our proposed networking scheme is evaluated by simulation and real implementations,respectively.The results show that,compared to traditional networking scheme,our scheme has a better performance.
