the protocol about DiffServ QoS

介绍关于ipv4网络中的QOS（通信服务质量）的文章。告诉你QOS是什么？能做什么，不能做什么。以及QOS在哪里使用等问题-Introduced articles on IPv4 network QOS (quality of communication services). Tell you what is the QOS? What can and can not do. QOS where use.

In this paper, a multicell OFDMA WiMAX network is considered for uating the performance analysis both in uplink and downlink .The QOS parameters like blocking time, download time and BER of the network are discussed on various physical layer conditio