Bandwidth management methods for QoS assurance in wireless communication network

Nowadays the need for wireless communication services and networks is continuously increasing for different kind of mobile applications (commercial, entertainment, military, aeronautics, navigation, etc.) Bandwidth management is an important task of the administrative tool to provide quality of service (QoS) for real time applications (voice, video and so on) [1]. IEEE 802.11 standard is widely used in the unlicensed 2.4 GHz frequency band and we will refer to it as a wireless communication network. TCP/IP (Transmission Control Protocol/Internet Protocol) does not offer any guaranties for QoS, so a special procedure is needed for resource reservation, especially for bandwidth prior allocation for real-time traffic. A different method to ensure the QoS of differentiated services is presented and some scenarios are analyzed.