scholarly journals Experimental performance analysis of multipath TCP path characteristics in streaming UHD HEVC-dash over wireless networks

2018 ◽  
Vol 7 (2.13) ◽  
pp. 88
Author(s):  
J S. Wejin ◽  
H Amca
Keyword(s):  
Wireless Networks ◽  
Service Delivery ◽  
High Efficiency ◽  
Video Codec ◽  
Great Promise ◽  
High Definition ◽  
Multipath Tcp ◽  
Multiple Interfaces ◽  
Unbalanced Network

The multiple interfaces in modern devices today have given great promise in enhancing multimedia service delivery over wireless networks. However, the IP coupled nature of the TCP/IP protocol inhibits the simultaneous use of these interfaces. Multipath TCP (MPTCP), a protocol undergoing IETF standardization has been developed to simultaneously use multiple interfaces for service delivery over the Internet. In this paper, we studied the effect of MPTCP paths characteristics in streaming Ultra High Definition, High Efficiency Video Codec (UHD HEVC-DASH) while connected to multiple wireless access points. The findings though specific instead of general, reveal that under balanced and unbalanced network paths, MPTCP offers good Quality of Experience (QoE) compared to SPTCP. However, with variability in latency, and packet loss between paths, MPTCP underperforms compared to SPTCP in terms of video buffering in the unbalanced network case, and high packet retransmission rate in either balanced or unbalanced network paths.  

scholarly journals Heterogeneous wireless networks with mobile devices of multiple interfaces for simultaneous connections using Fuzzy System

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247142
Author(s):  
Jorge Amaro de Sarges Cardoso ◽  
Fabio Pereira Ferreira da Silva ◽  
Tássio Costa de Carvalho ◽  
José Jailton Henrique Ferreira ◽  
Nandamudi Lankalapalli Vijaykumar ◽  
...  
Keyword(s):  
Wireless Networks ◽  
Fuzzy System ◽  
Heterogeneous Wireless Networks ◽  
Academic Community ◽  
Network Simulator ◽  
Multiple Interfaces ◽  
Exponential Increase ◽  
And Performance ◽  
Dual Interface

With the exponential increase in heterogeneous wireless networks today, there has been a growing interest from the academic community for issues related to handover problems. The main objective of this paper is to evaluate the quality of service and performance of a device with a dual interface that connects simultaneously to two heterogeneous networks with no competition in the exchange of packets between them. It is a proposal to solve the mitigation of handover impacts. The tool used for evaluation was the Network Simulator 2. The results showed a better use of the band in comparison to the scenario using a traditional mobile device.

scholarly journals Performance Parameters of Hevc Video Codec

2019 ◽  
Vol 8 (6) ◽  
pp. 365-369
Keyword(s):  
Video Compression ◽  
High Efficiency ◽  
Video Quality ◽  
Research Work ◽  
Video Codec ◽  
Video Encoding ◽  
High Efficiency Video Coding ◽  
Video Codecs ◽  
Compression Performance

In Video Codecs, The Main Focus Of Researchers Is On Improving Compression Performance To Achieve Higher Compression Rates And To Obtain High Quality Of Video Signals After Encoding At Low Bitrates. There Is Lot Of Satisfactory Research Has Been Done In The Field Video Encoders. Newly Invented HEVC Or H.265 Is A High Efficiency Video Coding Standard Which Improves Video Quality Double For Similar Bit-Rate Than That Of Others Preceders Video Codecs. Here, In This Research Work, We Mainly Focused On Performance And Quality Of Motion JPEG, H.264 And H.265 Using Different Video Encoding Libraries. There Is Lot Of Requirement Of High Efficiency In Video Compression To Handle Complex Computational Video Codecs. Though HEVC Has More Efficiency In Video Compression, Its Cost Is Significant High As Compared To H.264. As Per The Experimentation Conducted, HEVC Shows Best Quality In Video Compression Than That Of H.264. Motion JPEG Required Very Less Time With The Help Of H.264 But, It Generates Worst Encoded Video Quality Using Library Open JPEG. The Encoding Speed Of H.264 Was Slowest Than That Of Other Video Encoders. It Usually Generates Better Video Quality As Compare To Motion JPEG (Kakadu) Encoded Videos. In This Research Paper, We Focused On Video Codec And Its Futuristic Development.

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.

The Impact of Competitive Quasi-Market on Service Delivery in Benue State University, Makurdi Nigeria

GIS Business ◽  
2019 ◽  
Vol 14 (4) ◽  
pp. 85-98
Author(s):  
Idoko Peter
Keyword(s):  
Service Delivery ◽  
A Priori ◽  
Least Square ◽  
Secondary Source ◽  
State University ◽  
Ordinary Least Square ◽  
Negative Effect ◽  
The Impact ◽  
The Relationship

This research the impact of competitive quasi market on service delivery in Benue State University, Makurdi Nigeria. Both primary and secondary source of data and information were used for the study and questionnaire was used to extract information from the purposively selected respondents. The population for this study is one hundred and seventy three (173) administrative staff of Benue State University selected at random. The statistical tools employed was the classical ordinary least square (OLS) and the probability value of the estimates was used to tests hypotheses of the study. The result of the study indicates that a positive relationship exist between Competitive quasi marketing in Benue State University, Makurdi Nigeria (CQM) and Transparency in the service delivery (TRSP) and the relationship is statistically significant (p<0.05). Competitive quasi marketing (CQM) has a negative effect on Observe Competence in Benue State University, Makurdi Nigeria (OBCP) and the relationship is not statistically significant (p>0.05). Competitive quasi marketing (CQM) has a positive effect on Innovation in Benue State University, Makurdi Nigeria (INVO) and the relationship is statistically significant (p<0.05) and in line with a priori expectation. This means that a unit increases in Competitive quasi marketing (CQM) will result to a corresponding increase in innovation in Benue State University, Makurdi Nigeria (INVO) by a margin of 22.5%. It was concluded that government monopoly in the provision of certain types of services has greatly affected the quality of service experience in the institution. It was recommended among others that the stakeholders in the market has to be transparent so that the system will be productive to serve the society effectively

scholarly journals Service Delivery Models to Maximize Quality of Life for Older People at the End of Life: A Rapid Review

2019 ◽  
Vol 97 (1) ◽  
pp. 113-175 ◽  
Author(s):  
CATHERINE J. EVANS ◽  
LUCY ISON ◽  
CLARE ELLIS‐SMITH ◽  
CAROLINE NICHOLSON ◽  
ALESSIA COSTA ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Service Delivery ◽  
Older People ◽  
End Of Life ◽  
Rapid Review ◽  
Service Delivery Models ◽  
Delivery Models
Sign in / Sign up

Export Citation Format

Share Document