网生代作为教育受众主体,其时代特征对教学内容与教育方式提出新要求。瞄准该现实需求,开展指向性对策研究。首先对网生代主体性、主观性、主导性和规范性宏观特性作“4 + 6 + 7 + 6”微观内涵特征分解。然后定性分析23项内涵特征对教...网生代作为教育受众主体,其时代特征对教学内容与教育方式提出新要求。瞄准该现实需求,开展指向性对策研究。首先对网生代主体性、主观性、主导性和规范性宏观特性作“4 + 6 + 7 + 6”微观内涵特征分解。然后定性分析23项内涵特征对教学内容和教学方式的影响,综合考虑影响关联性,定性聚类为信息过载、学习深度广度、个性化等6项网生代教学关键因素。最后为改进网生代教学质量,瞄准关键因素,分别提出可行性对策,以满足网生代对教学内容与教学方式的时代需求,为进一步提高教学质量提供参考。As the main audience of education, the online generation has put forward contemporary requirements for teaching content and educational methods. Targeting the practical needs and conducting targeted countermeasures research. Firstly, the macro characteristics of subjectivity, subjectiveness, dominance, and standardization of the internet generation are decomposed into “4 + 6 + 7 + 6” micro characteristics and connotations. Then, a qualitative analysis was conducted on the deep level impact of 23 connotation features on teaching content and teaching methods. Taking into account the correlation of external influences, they were summarized as 6 key influencing factors of online generation teaching, including information overload, learning depth and breadth, and personalization, etc. Finally, in order to avoid the degradation of the teaching quality of the online generation, targeting key factors, feasible strategies are proposed to meet the era’s needs for teaching content and teaching methods, and to provide reference for further improving teaching quality.展开更多
为提高移动自组织网络(mobile ad hoc network,MANET)路由协议效率并增强其网络可扩展性,通过对P2P(peer-to-peer)网络与MANET的交叉研究,在DSR协议基础上引入Chord算法,提出基于网络物理拓扑的分级路由模型LPDSR。采用按需建环机制和...为提高移动自组织网络(mobile ad hoc network,MANET)路由协议效率并增强其网络可扩展性,通过对P2P(peer-to-peer)网络与MANET的交叉研究,在DSR协议基础上引入Chord算法,提出基于网络物理拓扑的分级路由模型LPDSR。采用按需建环机制和分级路由算法,降低查询复杂度,减少绕路问题。LPDSR算法性能分析和NS-2仿真结果表明,该路由模型的网络可扩展性明显提高。展开更多
为提高移动自组织网络(mobile ad hoc network,MANET)路由查询效率,通过对P2P(peer-to-peer)网络与MANET的交叉研究,在DSR协议基础上引入Chord算法,提出双向路由模型BPDSR.BPDSR双向路由发现算法和路由资源共享算法,降低了查询复杂度,...为提高移动自组织网络(mobile ad hoc network,MANET)路由查询效率,通过对P2P(peer-to-peer)网络与MANET的交叉研究,在DSR协议基础上引入Chord算法,提出双向路由模型BPDSR.BPDSR双向路由发现算法和路由资源共享算法,降低了查询复杂度,减少了路由失效和绕路问题.通过BPDSR算法性能分析和NS--2仿真实验表明,BPDSR路由模型的路由效率明显提高.展开更多
为在大规模移动Ad hoc网络(mobile ad hoc network,MANET)中实现可靠的广播传输,提出了一种支持可靠广播的MAC协议RBMP(the reliable broadcast MAC protocol,RBMP)。该协议采用预留分组交互、二次预约等措施保证了在不同网络规模MANET...为在大规模移动Ad hoc网络(mobile ad hoc network,MANET)中实现可靠的广播传输,提出了一种支持可靠广播的MAC协议RBMP(the reliable broadcast MAC protocol,RBMP)。该协议采用预留分组交互、二次预约等措施保证了在不同网络规模MANET中可靠广播业务传输的实现。仿真结果表明,该协议保证了可靠广播分组的传输,易于实现且开销较小,适用于大规模MANET网络。展开更多
针对目前经典的本地协作多信道MAC协议(LCM-MAC)缺乏频谱感知和带宽动态分配问题,提出一种认知无线电自组织网络(cognitive radio Ad hoc networks,CRAHNs)带宽动态分配多信道MAC(CR-LMAC)协议。通过引入频谱感知机制和新的带宽分配策...针对目前经典的本地协作多信道MAC协议(LCM-MAC)缺乏频谱感知和带宽动态分配问题,提出一种认知无线电自组织网络(cognitive radio Ad hoc networks,CRAHNs)带宽动态分配多信道MAC(CR-LMAC)协议。通过引入频谱感知机制和新的带宽分配策略模型,改进LCM-MAC协议,使其具备空闲信道感知和动态分配带宽的自适应能力。仿真结果表明,改进后的协议性能优于LCM-MAC,在网络总吞吐量和端到端时延等方面有较大提高和改善。展开更多
文摘网生代作为教育受众主体,其时代特征对教学内容与教育方式提出新要求。瞄准该现实需求,开展指向性对策研究。首先对网生代主体性、主观性、主导性和规范性宏观特性作“4 + 6 + 7 + 6”微观内涵特征分解。然后定性分析23项内涵特征对教学内容和教学方式的影响,综合考虑影响关联性,定性聚类为信息过载、学习深度广度、个性化等6项网生代教学关键因素。最后为改进网生代教学质量,瞄准关键因素,分别提出可行性对策,以满足网生代对教学内容与教学方式的时代需求,为进一步提高教学质量提供参考。As the main audience of education, the online generation has put forward contemporary requirements for teaching content and educational methods. Targeting the practical needs and conducting targeted countermeasures research. Firstly, the macro characteristics of subjectivity, subjectiveness, dominance, and standardization of the internet generation are decomposed into “4 + 6 + 7 + 6” micro characteristics and connotations. Then, a qualitative analysis was conducted on the deep level impact of 23 connotation features on teaching content and teaching methods. Taking into account the correlation of external influences, they were summarized as 6 key influencing factors of online generation teaching, including information overload, learning depth and breadth, and personalization, etc. Finally, in order to avoid the degradation of the teaching quality of the online generation, targeting key factors, feasible strategies are proposed to meet the era’s needs for teaching content and teaching methods, and to provide reference for further improving teaching quality.
文摘为提高移动自组织网络(mobile ad hoc network,MANET)路由协议效率并增强其网络可扩展性,通过对P2P(peer-to-peer)网络与MANET的交叉研究,在DSR协议基础上引入Chord算法,提出基于网络物理拓扑的分级路由模型LPDSR。采用按需建环机制和分级路由算法,降低查询复杂度,减少绕路问题。LPDSR算法性能分析和NS-2仿真结果表明,该路由模型的网络可扩展性明显提高。
文摘为提高移动自组织网络(mobile ad hoc network,MANET)路由查询效率,通过对P2P(peer-to-peer)网络与MANET的交叉研究,在DSR协议基础上引入Chord算法,提出双向路由模型BPDSR.BPDSR双向路由发现算法和路由资源共享算法,降低了查询复杂度,减少了路由失效和绕路问题.通过BPDSR算法性能分析和NS--2仿真实验表明,BPDSR路由模型的路由效率明显提高.
文摘为在大规模移动Ad hoc网络(mobile ad hoc network,MANET)中实现可靠的广播传输,提出了一种支持可靠广播的MAC协议RBMP(the reliable broadcast MAC protocol,RBMP)。该协议采用预留分组交互、二次预约等措施保证了在不同网络规模MANET中可靠广播业务传输的实现。仿真结果表明,该协议保证了可靠广播分组的传输,易于实现且开销较小,适用于大规模MANET网络。
文摘针对目前经典的本地协作多信道MAC协议(LCM-MAC)缺乏频谱感知和带宽动态分配问题,提出一种认知无线电自组织网络(cognitive radio Ad hoc networks,CRAHNs)带宽动态分配多信道MAC(CR-LMAC)协议。通过引入频谱感知机制和新的带宽分配策略模型,改进LCM-MAC协议,使其具备空闲信道感知和动态分配带宽的自适应能力。仿真结果表明,改进后的协议性能优于LCM-MAC,在网络总吞吐量和端到端时延等方面有较大提高和改善。
