A protocol for reviewing hotel anchored Public Private Partnerships

This article examines public subsidies used to encourage hotel development and proposes a robust protocol for their review by authorities having jurisdiction. The article begins by examining the size and scope of Public Private Partnerships to encourage hotel development in the United States, and with a discussion of the rationale for and against the subsidies. It goes on to provide an overview of typical subsidy financing arrangements and presents a methodology for the evaluation of public subsidies for proposed hotels. The case is made that publicly subsidized hotels can create benefits for both private developers and sponsoring governmental units which can include local, state, and federal levels. However, there is often an asymmetry of political power and data that favors private developers over those negotiating on behalf of taxpayers (Laslo and Judd 2004, Perry 2003). The article examines typical processes used to review subsidy proposals and recognizes the challenges of overcoming the significant political momentum behind them that favors developers at the expense of taxpayers. The framework will assist authorities in their economic review of proposed subsidies for hotels by providing a template useful for addressing what is oftentimes an imbalance of information that favors developers over those representing the interests of the public sector.     

On the dual-stacking transition to IPv6: A forlorn hope?

The assumption that IPv6 will inevitably replace IPv4 as the dominant network layer protocol on the Internet is almost universal. A failure of IPv6 to diffuse is thought to have far-reaching and long-lasting economic and social consequences, yet there have been no prior analyses of the dual-stacking transition mechanism by which IPv6 diffusion is expected to be achieved in order to understand whether it is likely to succeed. Guided by economic theory, this paper presents such an analysis, and concludes that the dual-stacking transition strategy is unlikely to work, leaving the Internet with no workable means of achieving migration to IPv6. The paper concludes with a number of recommendations for regulatory and policy bodies, end-user organisations and network operators.     

面向TD-LTE网络的塔顶放大器控制单元设计

根据TD-LTE网络时分复用工作方式对塔顶放大器（TMA）的通信和控制性能要求，提出了一种符合天线接口标准组（AISG）协议的控制单元设计方案。利用环行器和大功率射频开关构建了射频收发模块，显著提高了上下行通道间的隔离度并有效避免了闭环自激。采用基于对数放大器的检波方法实现了解调灵敏度可调节的OOK通信电路。提出上行时隙内进行同步工作电流检测的TMA状态检测和故障处理方法，改善了其故障检测与恢复的效率。测试结果表明，设计方案符合AISG协议规范要求，状态监控功能完善，告警上报方式合理，且具备非永久故障下自动恢复的功能。     

车载自组织网络路由协议研究进展与比较

车载自组织网络（VANET）是一种新型移动自组织网络。作为移动无线网络的热点研究领域,车载自组织网络的间歇连通性使路由设计充满挑战。首先阐述了车载自组织网络的主要特征和应用;在对车载网络路由协议进行分类的基础上,详细描述了一批有代表性的路由协议;对比和总结了各类路由协议的特点,并提出相关研究建议,可为车载网络路由协议研究提供一定的参考价值。     

基于中国移动CMPP的短信平台的设计与开发

文章介绍了短信业务及短信平台的应用,分析了通信协议及CMPP协议,并研究了SMS网关(通信处理模块)的设计与实现。     

无线传感器网络中层次路由协议的研究与设计

无线传感器网络由大量的传感器节点组成,在节点之间进行数据传递的过程中,路由协议的功耗决定网络的优劣。     

PPP协议应用现状及纠纷救济机制探索

随着社会经济的快速发展,政府和社会资本合作的PPP模式应运而生,并发展得如火如荼。2019年底,最高法发布审理行政协议案件的司法解释,明确了符合四要素的PPP协议为行政协议,学界和实务部门对此争议不断。基于此,本文从《行政协议案件规定》出台前后对PPP协议的法律性质进行分析,通过检索案例并结合司法实务中的困境,针对PPP协议纠纷救济机制提出相应的合理化建议,以期在一定程度上推动PPP项目在我国的长远发展。     

延迟容忍网络中一种多信息融合的改进概率路由算法

综合利用节点物理状态信息（位置和速度矢量信息）和社会关系信息（历史相遇信息）,提出一种多信息融合的概率路由算法（PRMF）。该算法依据节点间距离的远近程度动态调整两类信息在预测相遇关系中的权重,以选择合适的信息来计算传输概率,并依据传输概率的大小选择转发节点。另外,还引入有效的分组副本控制和分组散播策略,并结合预测信息改进了节点缓存管理方法。仿真结果表明：与现有的几种路由算法相比,PRMF保持了较低的平均开销,同时具有最高的投递率和最小的平均延迟。     

基于地理信息的航空自组网路由协议综述

航空自组网是自组网在航空领域的典型应用。航空自组网的关键技术在于路由协议的 选取和设计。介绍了国内外航空自组网发展现状,分析了航空自组网路由协议的基本设计原 则和分类,并探讨了基于地理信息的航空自组网路由协议技术特点,最后展望了 航空自组网的发展趋势。     

当前中国银行间市场数据标准化探索与实践

加快金融业信息化建设是提高金融机构竞争力的必由之路,其中大力推进金融标准化建设,实现各信息系统之间的互联互通和信息共享则是提高信息化建设水平的关键,也是金融行业发展的内在需求。文章详细介绍了银行间市场业务数据交换协议（IMIX）,并在分析总结其推广应用经验基础上,提出IMIX协议进一步完善及发展建议。