Research And Application Of Efficiency Maximization In Campus Delay Tolerant Network

Delay-Tolerant Networking(DTN)is an approach to computer network architecture that seeks to address the technical issues in heterogeneous networks that may lack continuous network connectivity.The emergence of the DTN has greatly improved the feasibility and efficiency in D2D networks,also it will further promote the development of delay tolerant network at non-emergency state.Campus environment based DTN has become an indispensable and important component of the D2D networks.The rest of this paper is outlined as follows.First,we propose a network model and a traces and t-distribution based routing algorithm.Then,simulation experiments and performance analysis are given.Finally,we develop an Android based communication application which applies this algorithm.This paper first introduces the development background and significance of delay tolerant networks in campus,as well as related knowledge and skills.Secondly,we implement a simulation platform according to requestments of DTNs in campus to prove the reliability.Then,we introduce the design of the application,including the choice of system platform,software architecture design,system function module partition and data structure design,etc.Subsequently,this paper makes a detailed description on the design and implementation of basic functional layer and core functional layer.Moveover,this paper introduces the detailed design and implementation of user functionality.The traces based t-distribution routing algoritm introduced in this paper is an important part of DTNs in campus,and there is a high practical value which is proved by experiments results on simulation platform.The design idea and development method also has a certain reference value on application development of the other mobile platform.