The mechanism to select one out of multiple available transmission rates at a given time is
referred to as link adaptation. The effectiveness of a link adaptation scheme depends on …

We present a simple but powerful dynamic link adaptation mechanism for wireless LANs,
which are based on the IEEE 802.11 a standard. Using this method, a transmitter is able to …

IEEE 802.11 wireless local area network (WLAN) physical layers (PHYs) support multiple
transmission rates. The PHY rate to be used for a particular frame transmission is solely …

In a WLAN subject to variable wireless channel conditions, rate adaptation plays an
important role to more efficiently utilize the physical link. However, the existing rate …

Many rate adaptation algorithms have been proposed for IEEE 802.11 Wireless LAN
devices and most of them operate in an open-loop manner, ie, the transmitter adapts its …

We propose a closed-loop, dynamic rate adaptation algorithm that can be implemented in all
IEEE 802.11 a/b/g compliant wireless local area networks. Our proposed algorithm is a …

• If two consecutive ACK frames are not received correctly, the second retry and subsequent
transmissions are done at a lower rate and a timer is started.• When the number of …

We present a simple but powerful dynamic link adaptation mechanism for wireless LANs that
is compliant with the IEEE 802.11 a standard. Using this method, a transmitter is able to …

The channel coherence time in indoor WLANs normally exceeds multiple frame
transmission times. In light of this, we propose a new rate adaptation scheme, termed as the …

Experimental studies have shown that traditional rate adaptation schemes for 802.11
wireless networks suffer from significant throughput degradation in highly congested …