scholarly journals Algorithmic Identification of the Best WLAN Protocol and Network Architecture for Internet-Based Applications

2020 ◽  
Vol 19 (01) ◽  
pp. 2040011
Author(s):  
Ali Mohd Ali ◽  
Mahmoud Dhimish ◽  
Malek M. Alsmadi ◽  
Peter Mather
Keyword(s):  
Ieee 802.11 ◽  
Network Architecture ◽  
Network Performance ◽  
Rank Order ◽  
Video Conferencing ◽  
Threshold Values ◽  
Acceptance Threshold ◽  
Basic Service ◽  
Delay Jitter

This research developed a novel algorithm to evaluate internet-based services such as VoIP, Video Conferencing, HTTP and FTP, of different IEEE 802.11 technologies in order to identify the optimum network architecture among Basic Service Set (BSS), Extended Service Set (ESS) and the Independent Basic Service Set (IBSS). The proposed algorithm will yield the rank order of different IEEE 802.11 technologies. By selecting the optimum network architecture and technology, the best overall network performance that provides good voice, video and data quality is guaranteed. Furthermore, it meets the acceptance threshold values for the VoIP, Video Conferencing, HTTP and FTP quality metrics. This algorithm was applied to various room sizes ranging from [Formula: see text][Formula: see text]m to [Formula: see text][Formula: see text]m and the number of nodes ranged from 1 to 65. The spatial distributions considered were circular, uniform and random. The Quality of Service (QoS) metrics used were delay, jitter, throughput and packet loss.

scholarly journals An Algorithmic Approach to Identify the Optimum Network Architecture and WLAN Protocol for VoIP Application

2021 ◽  
Author(s):  
Ali Mohd Ali ◽  
Mahmoud Dhimish ◽  
Malek M. Alsmadi ◽  
Peter Mather
Keyword(s):  
Ieee 802.11 ◽  
Network Architecture ◽  
Network Performance ◽  
Voice Quality ◽  
Acceptance Threshold ◽  
Basic Service ◽  
Delay Jitter ◽  
Optimal Network ◽  
Quality Of Service Parameters

AbstractTo 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.

scholarly journals Unified System Network Architecture: Flexible and Area-Efficient NoC Architecture with Multiple Ports and Cores

Electronics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1316
Author(s):  
Phan-Duy Bui ◽  
Chanho Lee
Keyword(s):  
Network Architecture ◽  
High Performance ◽  
Network Performance ◽  
Multiprocessor System ◽  
Average Latency ◽  
High Performance Systems ◽  
Critical Components ◽  
High Flexibility ◽  
Area Efficient

In recent years, as semiconductor manufacturing processes have been steadily scaled down, the transistor count fabricated on a single silicon die can reach up to a billion units. Therefore, current multiprocessor system-on-chips (MPSoCs) can include up to hundreds or even thousands of cores and additional accelerators for high-performance systems. Network-on-chips (NoCs) have become an attractive solution for interconnects, which are critical components of MPSoCs in terms of system performance. In this study, a highly flexible and area-efficient NoC architecture, namely the unified system network architecture (USNA), which can be tailored for various topologies, is proposed. The USNA provides high flexibility in port placements with varying numbers of local cores and router linkers. It also supports quality of service operations for both the router and linker. The network performance (e.g., average latency and saturated throughput) and implementation cost of the USNA, using various network configurations for the same number of local cores under uniform random traffic conditions, were investigated in this study. According to the simulation results, the performance of the USNA is better or similar to other NoCs, with a significantly smaller area and lower power consumption.

scholarly journals LSEA: Software-Defined Networking-Based QoS-Aware Routing Mechanism for Live-Soccer Event Applications in Smart Cities

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Yingcheng Zhang ◽  
Gang Zhao
Keyword(s):  
Network Performance ◽  
Smart Cities ◽  
Routing Algorithm ◽  
Software Defined Networking ◽  
Live Streaming ◽  
Streaming Applications ◽  
Delay Jitter ◽  
Building Process ◽  
Routing Mechanism

The smart cities provide a better connection between services and citizens based on new Internet technologies. During the building process of smart cities, some burgeoning applications have been emerging and changing the daily lifestyle of people, e.g., live streaming applications. Especially, the live-soccer event applications have attracted much attention and can improve people’s enjoyment of life to a great extent, such as the Europe five major league matches and FIFA world cup. For such applications, the traditional routing strategies cannot do Quality-of-Service (QoS) awareness, and thus, the network performance and the Quality of Experience (QoE) of users cannot be guaranteed. In this paper, we employ Software-Defined Networking (SDN) to make QoS awareness for the special live-soccer event applications, in which the QoS-aware routing mechanism is proposed, called LSEA. Meanwhile, delay, delay jitter, and packet loss rate are considered as three objects. On this basis, the improved Dijkstra routing algorithm and SDN-based disjoint routing algorithm are devised. Finally, the proposed LSEA is implemented over Mininet, and the experimental results demonstrate its feasibility and efficiency.

A Real-Time Network Analysis Tool to Aid in Characterizing VoIP System Performance

2005 ◽  
Vol 42 (2) ◽  
pp. 119-131 ◽  
Author(s):  
Christopher M. White ◽  
Edward J. Daniel ◽  
Keith A. Teague
Keyword(s):  
Real Time ◽  
Data Transmission ◽  
Network Performance ◽  
Packet Networks ◽  
Analysis Tool ◽  
Practical Application ◽  
Time Data ◽  
Delay Jitter ◽  
End To End Delay

This paper details the development of an educational and research tool, the Network Performance Application (NPA), which provides real-time network performance measurement through a simulated voice over IP session using live real-time data transmission over packet networks. This application, written in Visual C++ for MS Windows environments, is used to collect Quality of Service (QoS) statistics such as packet loss, end-to-end delay, inter-arrival delay jitter, and out-of-order packet delivery. The paper also demonstrates a practical application using a government standard for VoIP transmissions.

scholarly journals Optimization of quality of service parameters for efficient channel allocation

2018 ◽  
Vol 7 (3) ◽  
pp. 1220
Author(s):  
Aditya Saxena ◽  
Jyoti Singhai ◽  
Deepak Raghuvanshi
Keyword(s):  
Quality Of Service ◽  
Packet Loss ◽  
Network Performance ◽  
Channel Allocation ◽  
Optimization Technique ◽  
Mac Layer ◽  
Medium Access ◽  
Delay Jitter ◽  
Queueing Delay

The bandwidth-intensive network applications with aggressive quality of service (QoS) requirements requires fast and efficient networks. The wireless network performance is impacted due to multitude of data transport at uneven transmission rates on various channels and line losses leading to congestion. It is a big challenge to achieve the required QoS by managing delay, jitter, bandwidth and packet loss parame-ters on a network. This paper highlights the major causes affecting QoS and proposes an optimization technique which allocates the channel dynamically by integrating all the parameters affecting QoS across network layer, medium access control (MAC) layer and physical layer. The proposed algorithm utilizes the feedback parameters namely queueing delay, packet priority and timeout, MAC layer contention delay and packet loss ratio as inputs and a closed loop processing control for the scheduler based on fuzzy logic control (FLC). Hence, the algo-rithm is more realistic and considers the line conditions. The simulation results show that the proposed algorithm is faster and utilizes the overall network more efficiently.   

scholarly journals Scalability in Ad Hoc Networks:The Effects of its Complex Nature

2014 ◽  
Vol 3 (3) ◽  
pp. 315 ◽  
Author(s):  
Juan Lopez ◽  
Jorge Trivino
Keyword(s):  
Ad Hoc Networks ◽  
Network Architecture ◽  
Network Performance ◽  
Ad Hoc ◽  
Complex Nature ◽  
Hoc Networks ◽  
New Applications ◽  
To Receive ◽  
Competition For Resources

One of the expected properties of the ad hoc networks is the ability to increase its size to receive new nodes and configure new applications without affecting the quality of services. This property, called scalability is affected by the decentralized nature of ad hoc networks making it necessary to develop mechanisms that allow a large number of nodes work together without affecting network performance. The following article describes how the scalability of the ad hoc networks are directly related to routing algorithms, the need of cooperation, competition for resources, the network architecture and the heterogeneous nature of the nodes.Keywords: Ad Hoc Networks, Network architecture, Game Theory, Scalability.

Mobile Network Architecture

2018 ◽  
pp. 130-205
Keyword(s):  
Network Architecture ◽  
Network Performance ◽  
Mobile Network ◽  
Mobile Service ◽  
Broadband Wireless ◽  
Lte Advanced ◽  
First Time ◽  
3Rd Generation Partnership Project

The mobile service was globally popularized with the ease of internet access enabled with the 3rd generation of networks and the broadband wireless speeds enabled with the 4th generation known as the long-term evolution (LTE). LTE became the most popular architecture with around 600 commercially launched networks worldwide. This prompted further advancements for hundreds of gigabits per second speeds and connect tens of billions of devices worldwide. The LTE-advanced and LTE-advanced-pro were introduced as intermediary network enhancements towards the future 5th network generation. For the first time, the 3rd generation partnership project (3GPP) architectures included built-in features for conducting mobile network forensics so investigators can structure and coordinate the investigation with maximum safeguards for the quality of the evidence, users' privacy, and network performance. To fully capitalize on the forensics features, this chapter details all the infrastructural, security, and forensics-related aspects of the modern 3GPP networks.

scholarly journals Unjuk Kerja IP PBX Asterisk dan FreeSWITCH pada Topologi Bertingkat di Jaringan Kampus

2017 ◽  
Vol 9 (3) ◽  
Author(s):  
Iwan Setiawan ◽  
Azis Wisnu Widhi Nugraha ◽  
Adi Septian Putra Atmaja
Keyword(s):  
Network Topology ◽  
Network Architecture ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Campus Network ◽  
Hierarchical Topology ◽  
Delay Jitter ◽  
Communication Devices

Internet Protocol-based Private Branch Exchange (IP PBX) is needed to interconnect/switch calls between VoIP communication devices in a Local Area Network (LAN). VoIP service can be provided by using IP PBX in data/IP networks that are already provisioned. We conduct this research to evaluate VoIP performances of two IP PBXs using Asterisk and FreeSWITCH. We design an experimental network architecture that is adapted from the hierarchical topology in a Campus Area Network (CAN) at the research location that consists of core switch, distribution switch, and access switch. The two IP PBXs are placed at different locations in the hierarchy of the network topology for investigating the effects of the placement to the VoIP performance. This experimental concept can be used as a base for designing architectures of centralized and distributed IP PBXs in campus network. We measure VoIP performance by evaluating the systems with the Quality of Service (QoS) and the Quality of Experience (QoE) parameters. We also monitor processor and memory consumptions that are used by each VoIP server software when communication takes place. The evaluation was conducted on VoIP system with phone-to-phone scenario in the experimental network that is connected to the active campus network. Our results show that IP PBX placement at different hierarchy of the network topology affects to the VoIP performance particularly on Asterisk IP PBX. The performance of FreeSWITCH IP PBX in terms of QoS and QoE is slightly better than the Asterisk one on average latency/delay, jitter, Mean Opinion Score (MOS), and memory consumption. The values are 41,012 ms, 0,060 ms, 5, 1 % for IP PBX 1, and 41,016 ms, 0,066 ms, 5, 0,5 % for IP PBX 2.

Demand of Wireless Network and Security in Current Research

2015 ◽  
Vol 14 (6) ◽  
pp. 5809-5813
Author(s):  
Abhishek Prabhakar ◽  
Amod Tiwari ◽  
Vinay Kumar Pathak
Keyword(s):  
Wireless Networks ◽  
Quality Of Service ◽  
Wireless Network ◽  
Network Performance ◽  
Wireless Security ◽  
Human Intervention ◽  
Unauthorized Access ◽  
Quality Of Service Parameters ◽  
Wireless Infrastructure

Wireless security is the prevention of unauthorized access to computers using wireless networks .The trends in wireless networks over the last few years is same as growth of internet. Wireless networks have reduced the human intervention for accessing data at various sites .It is achieved by replacing wired infrastructure with wireless infrastructure. Some of the key challenges in wireless networks are Signal weakening, movement, increase data rate, minimizing size and cost, security of user and QoS (Quality of service) parameters... The goal of this paper is to minimize challenges that are in way of our understanding of wireless network and wireless network performance.

Investigating the Analysis of Power Saving Mode in IEEE 802.11 for Wi-Fi Communication

2018 ◽  
Vol 6 (3) ◽  
pp. 13-19
Author(s):  
Isam Aameer Ibrahim ◽  
Haider TH Salim ◽  
Hasan F. Khazaal
Keyword(s):  
Ieee 802.11 ◽  
Network Performance ◽  
Power Saving ◽  
Packet Delay ◽  
Access Point ◽  
Battery Life ◽  
Global Issues ◽  
Time Ratio ◽  
Power Saving Mode ◽  
Saving Mode

One of the major global issues today is energy consumption. Consequently, power management was introduced in various communication technologies. For IEEE 802.11wireless communication, there is a Power Saving Mode scheme (PSM) for increase the battery life of cell phone. In this PSM, there are two key parameters: beacon period interval (BI) and listen interval(LI). In most work these values are chosen arbitrary. Here, a scheme to determine the optimal BI and LI for accomplishing the most astounding conceivable vitality proficiency is introduced. This is implemented with the application of a numerical sample to the standard IEEE 802.11 PSM and Access Point-PSM (AP-PSM) schemes. To ensure the quality of network performance analysis on the normal and change of parcel delays is doing. The well-known queuing (M/G/I) model with bulk services are utilized. After the implementation of the proposed analysis, “maximum rest plan time ratio optimal Sleep Scheme (OSS)” which is when participate stations stay in the doze mode it can be determined. In this research shows that the optimal BI and LI produce optimal OSS time ratio scheme also achieved optimal average and variance of packet delay.

Sign in / Sign up

Export Citation Format

Share Document