Applying Analytical Hierarchy Process to a WiMAX Performance Evaluation Model

Evaluating performance of individual features of WiMAX technology is a topic of widespread discussion. Currently, there is no quantitative way of measuring WiMAX technology so that wireless operators can meet their design objectives. This paper outlines a set of design criteria for WiMAX and provides a decision-making aid that ranks the importance of criteria using Analytic Hierarchy Process （AHP）. This ranking should sufficiently reflect market expectations of the relative importance of various design criteria. A model integrating AHP priorities with enhanced Data Envelopment Analysis （DEA） is the basis for formulating a technological value in simple, comparable format. A case study is provided to show how this technological value is used to evaluate a three year network deployment plan. In the future, this model could be extended to WiMAX equipment suppliers for the purpose of validating performance targets of individual criteria, and enhancing supplier roadmaps for future network development.

Establishment of Nanchang Honggu Tunnel health monitoring and assessment system

Based on the background of the Nanchang Honggu Tunnel,which is the largest inland river immersed tunnel to date in China,some research work on the construction of the Nanchang Honggu Tunnel health monitoring and assessment system is introduced.The platform of the health monitoring and assessment system is established with a relatively mature structure,including the sensor subsystem,data acquisition subsystem,data transmission subsystem,database subsystem,data processing and control subsystem,and health assessment and pre-warning subsystem.Monitoring index selection,sensor selection and sensor layout are fully considered in the health monitoring design and technology scheme.The fuzzy-AHP(analytic hierarchy process)evaluation method is employed to establish the Honggu Tunnel health assessment model,and the index weight determination method and grading control criterion are investigated and given.Then,the functions of the software system are achieved with advanced cloud platform technology,and the running costs of the system is reduced greatly.In summary,the establishment of the Nanchang Honggu Tunnel health monitoring and assessment system is described and such a system can realize real-time monitoring of the Honggu Tunnel and make it more convenient for implementing health assessment,pre-warning,and some other functions.Managers can operate the system using PCs and cell phones.At the same time,the relevant work on this system can provide a good reference for other immersed tunnels.