Quality of Service Performances in Ad Hoc IEEE 802.11 Wireless LANs

WLAN is a wireless network which provides connectivity in a limited area. IEEE 802.11 is the most widespread standard for wireless LANs, but it is not suitable for real time services. The draft standard IEEE802.11e provides solutions for Quality of Service (QoS), and maintains the compatibility with the IEEE802.11 standard. The paper, after a brief introduction on the WLAN technology, describes the IEEE802.e solutions for QoS and provides simulation results in an ad hoc network with different loads. It is shown that QoS in an ad hoc network can be provided with completely distributed techniques even if the network is heavy loaded with real time services.