Title :
Bandwidth allocation for DiffServ based quality of service over 802.11
Author :
Heusse, Martin ; Starzetz, Paul ; Rousseau, Franck ; Berger-Sabbatel, Gilles ; Duda, Andrzej
Author_Institution :
LSR-IMAG Lab., Grenoble, France
Abstract :
We propose to provide QoS differentiation at the IP level based on the DiffServ model over the standard distributed coordination function (DCF) method of 802.11. By constraining the output rate of each host in a cell via DiffServ scheduling and traffic shaping mechanisms, we can keep the 802.11 network in the state of nonsaturation so that the time-sensitive expedited forwarding (EF) class benefits from stable short delays. We analyze the performance of 802.11b to find how we should constrain the rate of DiffServ sources and present extensive measurements that show how the QoS differentiation is achieved.
Keywords :
IP networks; Internet; bandwidth allocation; delays; quality of service; scheduling; telecommunication traffic; wireless LAN; 802.11; DiffServ scheduling; IP level; bandwidth allocation; distributed coordination function method; quality of service; short delays; time-sensitive expedited forwarding class; traffic shaping mechanisms; Channel allocation; Delay; Diffserv networks; Laboratories; Performance analysis; Quality of service; Streaming media; Telecommunication traffic; Traffic control; Wireless LAN;
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
DOI :
10.1109/GLOCOM.2003.1258387
