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In conventional WLANs, stations (STAs) select access points (APs) using the existing scheme based on the current quality of links. However, some novel improved architecture of WLANs is proposed with cognitive radio (CR) to negotiate spectrum usage, where the existing AP selection scheme might not be suitable for it. Thus in this paper, a new optimal AP Selection based on Restless Bandits (APSRB) scheme...
IEEE 802.11 wireless transmissions suffer from a big security flaw as they are vulnerable to Denial of Service Attacks (DoS) which can degrade enormously their performance, especially their achieved throughput. One of the most harmful forms of these attacks is the jamming. In this paper, we provide an analytical model to study the effect of jamming on WLANs. Hence, we implement a physical layer jamming...
In an IEEE 802.11 based mobile ad hoc network (MANET), a network node accesses a common wireless channel through the distributed coordinate function (DCF), which is provided at the medium access control (MAC) layer of the IEEE 802.11 standard. The binary exponential backoff (BEB) algorithm, which uses slotted contention windows, plays an important role in the DCF. This paper develops a mathematical...
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