Abstract
This research investigates and analysed generic Wireless Local Area Networks (IEEE 802.11a/b/g) in the context of their Quality of Service (QoS) in high density networks using some generic Key Performance Indicators (KPI) such as throughput (Bytes/Sec), Received Signal Strength Indicator (RSSI), and latency response (secs). The study focused on University of Nigeria Nsukka (UNN) which houses several hostels and faculties. Using Applied Research Methodology (ARM), this work characterized a real life generic hotspot testbed (UNN) for Received Signal Strength (RSS), mobile node distance, latency and throughput using Tranzio-Wavion Minipop Infrastructure in UNN as the network testbed. In this study, after sampling the selected KPIs, data were collected via our testbed measurements from the test nodes, Network Switching system/Network Operating Centres (NOCs) and their values were evaluated for an assessment study. The KPI results obtained showed that the traditional generic WLAN will scarcely scale in high density traffic environment in terms of scalability, speed performance (network convergence), cost, and other selected KPIs. This will lead to a proposal on a conceptual framework for Cognitive High Density Hotspot (CHDN) in our future work, which will address the limitations of generic WLANs for enterprise computing.
Highlights
IEEE 802.11a/b/g WLANs are the most popular means of access to the Internet and intranet in clustered environments such as the Universities, Cybercafés, business centers, etc
For downtime avoidance and excellent Quality of Service (QoS) from users perspective, we will show an intelligent interconnection of Minipops for limitless subnets in high density hot spot environment that is capable of providing higher network capacity for efficient packet delivery and congestion free network
This work opines that providing convenient QoS mobile users in high density network environments has attracted critical attention since wireless LANs are deployed in academies and enterprises
Summary
IEEE 802.11a/b/g WLANs are the most popular means of access to the Internet and intranet in clustered environments such as the Universities, Cybercafés, business centers, etc,. The proliferation of mobile devices equipped with WiFi interfaces, such as smart phones, laptops, and personal mobile multimedia devices, has heightened this trend of ubiquitous access. The performance of WiFi hotspots based on IEEE 802.11a/b/g serving locations such as large density environments and busy airports has been extremely poor as evidenced in user experience scenarios. In most cases for such settings, more than one WiFi access points (APs) (minipops) provide wireless access to the Internet for many user devices (STAs). When many STAs are competing for channel resources using CSMA/CA, the overhead of handling high contentions, such as carrier sensing, back-off and collisions, can be very high
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