Performance Improvement of Data Offloading using Multi-rate IEEE 802.11 WLAN

Majlesi Journal of Electrical Engineering

مقاله 14، دوره 13، شماره 1، خرداد 2019، صفحه 121-126   

نوع مقاله: Review Article

نویسندگان

Ali Khoshnoudi¹؛ Rasool Sadeghi^{* 2}؛ Farhad Faghani¹

¹Department of Electrical Engineeering, Najafabad Branch, Islamic Azad University, Isfahan, Iran

²Department of Electrical Engineering, Dolatabad Branch, Islamic Azad University, Isfahan, Iran

چکیده

The WiFi offloading has emerged as a solution to mitigate the surge of traffic in cellular networks. The design of WiFi networks and the placement of Access Points (APs) has a considerable impact on the overall performance and the corresponding capital and operational expenditure (CAPEX/OPEX). Therefore, the minimum required number of APs without severe performance degradation is one of the challenges in WiFi offloading. In this paper, we investigate the impact of multi-rate WiFi APs on the offloading performance. A numerical analysis is presented to compare the minimum required number of APs in two modes of single-rate and multi-rate of IEEE 802.11 WLAN. The analysis results indicate the privilege of multi-rate WiFi AP when compared to single-rate WiFi AP. Moreover, the evaluation results show that required WiFi APs in multi-rate are 30% less than single rate WiFi APs.

کلیدواژه‌ها

Offloading؛ WiFi APs؛ Multi-rate؛ throughput؛ Single-rate

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