This paper summarizes the evolution of China’s accessibility standard system and its driving forces since the reform and opening-up was introduced in 1978,divides it into several stages based on social and economic d...This paper summarizes the evolution of China’s accessibility standard system and its driving forces since the reform and opening-up was introduced in 1978,divides it into several stages based on social and economic development,and further analyzes its development trend in the context of standardization reforms.Then,it critically reviews the characteristics of China’s current accessibility standard system and problems encountered during the implementation process.Finally,it proposes suggestions for the development of China’s accessibility standard system in the new era by drawing on domestic and international experience.展开更多
Recent advances in wireless communication technologies and auto-mobile industry have triggered a significant research interest in the field of vehicular ad-hoc networks （VANETs） over the past few years. A vehicular ...Recent advances in wireless communication technologies and auto-mobile industry have triggered a significant research interest in the field of vehicular ad-hoc networks （VANETs） over the past few years. A vehicular network consists of vehicle-to-vehicle （V2V） and vehicle-to-infrastructure （V2I） communications supported by wireless access technologies such as IEEE 802.11p. This innovation in wireless communication has been envisaged to improve road safety and motor traffic efficiency in near future through the development of intelligent transportation system （ITS）. Hence, governments, auto-mobile industries and academia are heavily partnering through several ongoing research projects to establish standards for VANETs. The typical set of VANET application areas, such as vehicle collision warning and traffic information dissemination have made VANET an interesting field of mobile wireless communication. This paper provides an overview on current research state, challenges, potentials of VANETs as well as the ways forward to achieving the long awaited ITS.展开更多
文摘This paper summarizes the evolution of China’s accessibility standard system and its driving forces since the reform and opening-up was introduced in 1978,divides it into several stages based on social and economic development,and further analyzes its development trend in the context of standardization reforms.Then,it critically reviews the characteristics of China’s current accessibility standard system and problems encountered during the implementation process.Finally,it proposes suggestions for the development of China’s accessibility standard system in the new era by drawing on domestic and international experience.
基金supported by a Grant-in-Aid for Scientific Research from Ebonyi State Government(EBSG)(No.EBSG/SSB/PS/VII/105)
文摘Recent advances in wireless communication technologies and auto-mobile industry have triggered a significant research interest in the field of vehicular ad-hoc networks （VANETs） over the past few years. A vehicular network consists of vehicle-to-vehicle （V2V） and vehicle-to-infrastructure （V2I） communications supported by wireless access technologies such as IEEE 802.11p. This innovation in wireless communication has been envisaged to improve road safety and motor traffic efficiency in near future through the development of intelligent transportation system （ITS）. Hence, governments, auto-mobile industries and academia are heavily partnering through several ongoing research projects to establish standards for VANETs. The typical set of VANET application areas, such as vehicle collision warning and traffic information dissemination have made VANET an interesting field of mobile wireless communication. This paper provides an overview on current research state, challenges, potentials of VANETs as well as the ways forward to achieving the long awaited ITS.
