International Journal of Advanced Networking and Applications

K. Sireesha ¹, C. Shoba Bindu ¹

Affiliations
1 Department of Computer Science and Engineering, JNTUA College of Engineering, Anantapur, A.P., IN

Abstract

In recent years, WLANs are widely deployed everywhere due to the low-cost and easy installation. Selecting the best access point is the major research problem. The stations in the network should get associate with the suitable access points that results in higher throughput. In IEEE 802.11 wireless networks, the simple association strategy is to get associate to the AP with the strongest RSSI value, which may cause load imbalance and may eventually leads to traffic overhead. Access point selection is still a critical problem.So, a new metric or combination of metrics has to be derived that facilitates the effective selection of an AP to achieve better throughput.

Keywords

Access Point (AP) Association, Decision Metrics, RSSI(Received Signal Strength Indication), Wireless Local Area Network(WLAN).

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G. Vijaya Kumar ¹, C. Shoba Bindu ²

Affiliations
1 Department of Computer Science and Engineering, G Pulla Reddy Engineering College, Kurnool, IN
2 Department of Computer Science and Engineering, JNT University, Anantapuramu, IN

Abstract

In IEEE 802.11 based wireless mesh network (WMN), a mesh client often finds multiple access points (AP) to associate with. How to select the best AP is the open research problem. The traditional AP selection method defined by IEEE 802.11 standard is based on received signal strength. This method is proven inefficient as it does not consider many important factors such as channel conditions, AP load, etc. Many alternate solutions have been proposed so far in the literature, but they are all focused on wireless local area network (WLAN) environment. As there are significant differences between WLAN and WMN, all these proposed association mechanisms must be redesigned to fit into WMN environment. This paper studies the AP selection problem in the context of WMN. We critically analyze the existing work and identify technical challenges involved in AP selection problem. This paper also provides directions to design the metrics of AP selection method in WMN.

Keywords

Access Link Metric, AP Load Balancing, AP Selection, Cross-Layer Association, Dynamic Association, IEEE 802.11 WMN.

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