Title :
Throughput differentiation for TCP uplink traffic in IEEE 802.11e wireless LANs
Author :
Siris, Vasilios A. ; Alafouzos, Panagiotis
Author_Institution :
Inst. of Comput. Sci., Found. for Res. & Technol. - Hellas, Crete
Abstract :
We investigate a model to achieve throughput differentiation and efficient channel utilization for TCP uplink traffic over IEEE 802.11e´s enhanced distributed channel access (EDCA) mechanism, when TCP acknowledgement packets are given higher priority for accessing the wireless channel compared to data packets. The proposed model can be used to tune the minimum contention window of EDCA to support efficient throughput differentiation according to a weight parameter, while taking into account factors such as the CSMA/CA and RTS/CTS procedure and different physical layer transmission rates. Simulation results validate the accuracy of the proposed model, and show its effectiveness in supporting weighted throughput differentiation
Keywords :
carrier sense multiple access; channel allocation; telecommunication traffic; transport protocols; wireless LAN; wireless channels; CSMA/CA; IEEE 802.11e; RTS/CTS; TCP uplink traffic; channel utilization; enhanced distributed channel access; throughput differentiation; wireless LAN; wireless channel; Broadband communication; Computer science; Local area networks; Multiaccess communication; Physical layer; Throughput; Traffic control; Wireless LAN; Wireless mesh networks; Wireless sensor networks; channel efficiency; contention-based access; service differentiation;
Conference_Titel :
Local and Metropolitan Area Networks, 2005. LANMAN 2005. The 14th IEEE Workshop on
Conference_Location :
Crete
Print_ISBN :
0-7803-9565-4
DOI :
10.1109/LANMAN.2005.1541516
