基于Android的Wi-Fi Direct即时通信系统的设计与实现

目前市场上存在许多即时通信软件,如QQ,WhatsApp,微信等.它们的通信机制是基于传统互联网模式,需连接网络基础设施才能为用户提供服务.现实中连接不到无线网络接入点(AP)或移动网络的情况很常见,因此这种服务并不总是可用的.基于上述背景,设计并实现了一种基于Android平台的Wi-Fi Direct即时通信系统,它可在两个或更多的智能手机之间建立ad-hoc网络来进行即时通信.实验结果显示,该系统具有稳定性好、可靠性高、传输速率高等特点.

Design and Implementation of Wi-Fi Direct IM system based on Android

There are lots of instant messenger software on the market such as QQ,WhatsApp,WeChat and so on.All the software mentioned above is based on traditional Internet mode and needs to be connected to the network infrastructure to enjoy the service.It is common that devices can't connect to a wireless network access point or a mobile network in reality,so this kind of service is not always available.Based on the above background,this paper designs and implements a Wi-Fi Direct instant messaging system which based on the Android platform and it can build an ad-hoc network for instant messaging between two or more smartphones.The experimental results show that the system has the characteristics of good stability,high reliability and high transmission rate.