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WiFi networks based on the IEEE 802.11 standard are currently penetrating into our daily life in many ways. With increasing demand for higher data rates by mobile applications, better network performance is required. Since link adaptation algorithms can play a key role in improving performance, they have been extensively investigated in the last decade. However, the relative impact of different approaches...
This paper discusses the delay characteristics and packet drop ratio performance of Busy Tone Multiple Access Protocol (BTMAP) for distances up to 48Km in IEEE 802.11 networks. The impact of the Contention Window (CW) is discussed. We note that a larger CW will increase the mean packet delay but decrease the packet drop ratio. Long range also significantly degrades the delay and packet drop ratio...
Scheduling schemes play a key role in the system performance of broadband wireless systems such as WLANs/WMANs. Maximal SNR and round robin are two conventional scheduling strategies that emphasize efficiency and fairness, respectively. The proportional fair scheme provides a trade-off between efficiency and fairness, and has been well studied in TDMA and CDMA systems. In this article we extended...
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