Abstract
To determine the optimal network architecture between the Basic Service Set, the Extended Service Set and the Independent Basic Service Set, this study established a new algorithm to assess Voice over Internet Protocol (VoIP) metrics of different IEEE 802.11 technologies. An important coefficient for each VoIP metric parameter has been invented to rank the different IEEE 802.11 standards and to identify the most efficient one for the VoIP application. The best overall network performance that offers good voice quality is ensured by determining the optimum network architecture and technology. Moreover, for the VoIP efficiency parameters, it meets the acceptance threshold values. This algorithm was implemented in different sizes of rooms ranging from 1 × 1 m to 10 × 10 m, and the number of nodes varied from 1 to 65. End to end delay, jitter, throughput and packet loss were the quality of service parameters used.
Highlights
In the communication industry, managing Voice over Internet Protocol (VoIP) is a high priority at present
Wireless LAN (WLAN) performance directly depends on the signal strength that operates through the air and varies from topology to topology, which has contributed to bringing about the flexibility of the network establishment, the mobility of nodes, and cost reduction [2]
The findings are divided into two main layers; Configuration (Network Architecture and Spatial distribution) and Technology (IEEE 802.11 standards)
Summary
In the communication industry, managing VoIP is a high priority at present. It is crucial to introduce real-time traffic such as VoIP over WLAN with the continuous motion of business operation and end-users towards Wireless LAN (WLAN). A set of variables that impact network performance, such as wireless network architectures (BSS, ESS, and IBSS) and IEEE MAC-layer technologies, should be identified and assessed in WLANs where VoIP application has been implemented. In real-time services, several efforts have been made to test metric QoS parameters set by IEEE technologies. Various efforts have been developed to evaluate the VoIP QoS parameters for the different number of nodes that are configured over IEEE technologies [12,13,14]. Recent studies have examined network architectures and real-time protocols and optimized them with VoIP services [15, 16]. The study was carried out for all six IEEE 802.11 technologies on the effect of node Spatial Distribution (i.e., Circular, Random, Uniform) on network performance. MAC protocol Data rate (Mbps) Modulation Frequency band (GHz) Channel width (MHz) Number of spatial streams
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