Collaborative Research: Characterizing Protocol Interaction in NEWS: A Network Environment Wireless State Service

该合作项目集中于四个主要研究方向：(i) 统计表征协议交互的详细研究，(ii) 为所有节点提供状态信息的可扩展的基于代理的服务，(iii) 利用智能天线的媒体访问控制 (MAC) 协议，以及 (iv) 使用逆向优化作为表征算法协议交互的框架。无线移动自组织网络中网络和 MAC 层协议交互的重点是在广义定位服务的背景下，该服务提供了一种使用智能天线获取移动节点当前位置的机制。该服务被称为网络环境无线状态服务（NEWS）服务，被概括为获取节点状态的其他方面，例如除了其位置之外，其本地流量特征、速度和能量使用情况；它向系统的其余部分提供当前的“新闻”，即状态。这样的服务可以提高协议的性能，并为基于位置和其他状态信息的新兴服务提供信息。该项目还旨在确定算法和统计协议交互的影响，首先是在新闻服务的实现中，其中不同的网络和 MAC 解决方案被混合和匹配。此外，该项目定义了一个基于分层代理的新闻服务，该服务使用本地流量条件和节点密度来生成（杀死）代理以在递归定义的网格区域中运行。该协议的设计补充了 MAC 层解决方案，该解决方案可以利用位置和控制发射功率级别的能力，在适当的网格级别内进行定向发射。最后，该项目将使用基于逆优化的框架来决定何时在网络层生成代理以获得MAC层的成功传输，即优化层间交互。

This collaborative project concentrates on four main research thrusts: (i) a detailed study to statistically characterize protocol interaction, (ii) a scalable agent-based service to provide all nodes with state information, (iii) a Media Access Control (MAC) protocol utilizing smart antennas, and, (iv) the usage of inverse optimization as a framework for characterizing algorithmic protocol interaction. The focus on the network and MAC layer protocol interaction in wireless mobile ad-hoc networks is in the context of a generalized location service that provides a mechanism to obtain the current position of a mobile node by using smart antennas. This service, called Network Environment Wireless State service (NEWS) service, is generalized to obtain other aspects of node state, such as its local traffic characteristics, velocity, and energy usage, in addition to its location; it provides current "news," i.e., state, to the rest of the system. Such a service can improve the performance of protocols and provide information for emerging services based on location and other state information. This project also aims at identifying the impact of protocol interaction, both algorithmic and statistical, first in an implementation of a NEWS service wherein different network and MAC solutions are mixed and matched. Furthermore, this project defines a hierarchical agent-based NEWS service that uses local traffic conditions and node density to spawn (slay) agents to operate in a recursively defined grid area. The design of this protocol complements a MAC layer solution that can take advantage of location and the ability to control transmit power level to directionally transmit within the appropriate grid level. Finally, this project will use a framework based on inverse optimization to decide when to spawn agents at the network layer to obtain successful transmissions at the MAC layer, i.e., to optimize the interlayer interaction.