Rate Adaptation is a critical component of IEEE 802.11 network devices. There are many rate adaptation algorithms proposed in the literature. They are either evaluated through simulations or through experiments only in static scenarios. We implement some of these algorithms (which are implementable) in Madwifi device driver and then compare their performance in static as well as mobile vehicula...

This paper considers the problem of handoo management in an Integrated Services Packet Network supporting mobile hosts. In such a network, links may become overloaded due to a high concentration of mobile hosts within a given cell. As a result, the required Quality of Service guarantees cannot be provided to all ows in that cell. However, there exists adaptive applications which can operate ove...

Rate adaptation is a link layer mechanism critical to the system performance by exploiting the multiple transmission rates provided by current IEEE 802.11 WLANs. The key challenge for designing such an algorithm is how to select the most appropriate transmission rate under different environments. The first generation rate adaptation schemes perform poorly in a collision dominant environment bec...

Abstract: A key problem with IEEE 802.11 technology is adaptation of the transmission rates to the changing channel conditions, which is more challenging in vehicular networks. Although rate adaptation problem has been extensively studied for static residential and enterprise network scenarios, there is little work dedicated to the IEEE 802.11 rate adaptation in vehicular networks. Here, the au...

the main purpose of this research was to study the variables and factors that affect adaptation of university to external environment and to develop a model for assessment of tehran public universities adaptation to external environment. a mixed method research approach involving a three-round delphi study was used to record responses to the closed-questions and open-ended-questions. other data...

IEEE 802.11 technology provides a low-cost wireless networking solution. In the last few years, we have seen that the demand for high-bandwidth wireless local area networks increases rapidly, due to the proliferation of mobile devices such as laptops, smart phones and tablet PCs. This has driven the widespread deployment of IEEE 802.11 wireless networks to provide Internet access. However, wire...

We examined the effect of aging and cortical stroke on rate motor adaptation (adaptation rate) amount performance gains plateau) in balance skills. Fourteen older (≥60 years) fifteen younger (<60 adults with chronic stroke, thirteen healthy participated. Participants experienced 8 consecutive gait-slips (≤45 cm) to their non-paretic/dominant limb. Slip outcome (backward/no loss) was compared...