Quality of Service Issues in Mobile Multimedia Transmission

2011 ◽  
pp. 45-63 ◽  
Author(s):  
Nalin Sharda
Keyword(s):  
Quality Of Service ◽  
Multimedia Information ◽  
Mobile Networks ◽  
User Interfaces ◽  
Error Rate ◽  
Mobile Network ◽  
Mobile Systems ◽  
Multimedia Content ◽  
Temporal Aspects

The focus of this chapter is on the quality of service (QoS) aspects involved in transmitting multimedia information via mobile systems. Multimedia content and applications require sophisticated QoS protocols. These protocols need to manage throughput, delay, delay variance, error rate, and cost. How errors are handled in a multimedia session can have significant impact on the delay and delay variance. Coding and compression techniques also influence how the final presentation is transformed by the impediments encountered on a mobile network. Providing the user with the ability to negotiate between cost, quality, and temporal aspects is important, as this allows the user to strike a balance between these factors. In moving from 2G to 3G, and, over the next decade to 4G mobile networks, the ability to transmit multimedia information is going to improve constantly. Nonetheless, providers must develop viable economic models and user interfaces for providing differentiated QoS to the users.

Quality of Service Issues in Mobile Multimedia Transmission

2008 ◽  
pp. 1422-1440
Author(s):  
Nalin Sharda
Keyword(s):  
Quality Of Service ◽  
Multimedia Information ◽  
Mobile Networks ◽  
User Interfaces ◽  
Error Rate ◽  
Mobile Network ◽  
Mobile Systems ◽  
Multimedia Content ◽  
Temporal Aspects

The focus of this chapter is on the quality of service (QoS) aspects involved in transmitting multimedia information via mobile systems. Multimedia content and applications require sophisticated QoS protocols. These protocols need to manage throughput, delay, delay variance, error rate, and cost. How errors are handled in a multimedia session can have significant impact on the delay and delay variance. Coding and compression techniques also influence how the final presentation is transformed by the impediments encountered on a mobile network. Providing the user with the ability to negotiate between cost, quality, and temporal aspects is important, as this allows the user to strike a balance between these factors. In moving from 2G to 3G, and, over the next decade to 4G mobile networks, the ability to transmit multimedia information is going to improve constantly. Nonetheless, providers must develop viable economic models and user interfaces for providing differentiated QoS to the users.

Quality of Service Issues in Mobile Multimedia Transmission

2009 ◽  
pp. 2843-2861
Author(s):  
Nalin Sharda
Keyword(s):  
Quality Of Service ◽  
Multimedia Information ◽  
Mobile Networks ◽  
User Interfaces ◽  
Error Rate ◽  
Mobile Network ◽  
Mobile Systems ◽  
Multimedia Content ◽  
Temporal Aspects

The focus of this chapter is on the quality of service (QoS) aspects involved in transmitting multimedia information via mobile systems. Multimedia content and applications require sophisticated QoS protocols. These protocols need to manage throughput, delay, delay variance, error rate, and cost. How errors are handled in a multimedia session can have significant impact on the delay and delay variance. Coding and compression techniques also influence how the final presentation is transformed by the impediments encountered on a mobile network. Providing the user with the ability to negotiate between cost, quality, and temporal aspects is important, as this allows the user to strike a balance between these factors. In moving from 2G to 3G, and, over the next decade to 4G mobile networks, the ability to transmit multimedia information is going to improve constantly. Nonetheless, providers must develop viable economic models and user interfaces for providing differentiated QoS to the users.

Semantic-Based Video Transcoding Architectures for Quality of Service Applications in Mobile and Wireless Video Communication

2011 ◽  
pp. 142-159
Author(s):  
Ashraf M.A. Ahmad
Keyword(s):  
Quality Of Service ◽  
Bit Error Rate ◽  
Error Rate ◽  
High Performance ◽  
Mobile Network ◽  
Video Stream ◽  
Video Transcoding ◽  
Limited Bandwidth ◽  
Mobile Access

Delivering streaming video over wireless networks is an important component for most interactive multimedia applications running on personal wireless handset devices. Such personal devices have to be inexpensive, compact, and lightweight. Wireless channels have limited bandwidth and a high channel bit error rate and limited bandwidth. Delay variation of packets due to network congestion with the high bit error rate lessens the quality of video at the handheld device. Mobile access to multimedia content requires video transcoding functionality at the edge of the mobile network for interworking with heterogeneous networks and services. Under certain conditions, the bandwidth of a coded video stream needs to be drastically reduced. We present several efficient mechanisms for improving the quality of service (QoS) delivered to the client by deploying content-based transcoding schemes. The proposed approaches are performing the required transcoding based on the video content. Some approaches study the texture and temporal features. Other approaches perform object detection in order to determine the important objects to achieve semantic transcoding. The quality of the reconstructed images is remarkably similar to results that have been processed by the expensive and high performance transcoding approach. Exceptional performance is demonstrated in the experiment results. Extensive experiments have been conducted, and the results of various video clips with different bit rates and frame rates have been provided.

Pengaruh Kualitas Pelayanan Terhadap Kepuasan Pelanggan di Kantor Perusahaan Umum Badan Urusan Logistik Kota Sampit Kabupaten Kotawaringin Timur

2016 ◽  
Vol 2 (2) ◽  
pp. 1-5
Author(s):  
Masrukin Masrukin ◽  
Hermanto Hermanto
Keyword(s):  
Quality Of Service ◽  
Customer Satisfaction ◽  
Service Quality ◽  
Error Rate ◽  
Research Method ◽  
Statistical Test ◽  
Quality Factors ◽  
Public Companies ◽  
Public Company

Customer satisfaction is influenced by service quality factors, this study aims to find out and analyze how much influence the quality of service on customer satisfaction is felt by customers who use the service of Poor Rice (Raskin) at the Office of Public Companies Logistics Agency (Perum BULOG) in Sampit City Regency East Kotawaringin. The research method used in this study is the method of observation, questionnaire/questionnaire and documentation using a Likert scale and the method of determining the sample used is the error rate of 5% as many as 213 samples. Testing the hypothesis used is a statistical test with the formula "Product moment person". The results showed that there was a very strong correlation between Service Quality and Customer Satisfaction of the Office of Public Company of the Logistics Affairs Agency (Perum BULOG) in the District of East Kotawaringin. As much as 0.9968514278 based on the calculation of Pearson Product Moment value.

Differential quality-of-service provision in mobile networks

2008 ◽  
Vol 6 (1) ◽  
pp. 133 ◽  
Author(s):  
Jui Chi Shen ◽  
Dong Her Shih ◽  
Han Chuan Wei ◽  
Chiao Chu Li
Keyword(s):  
Quality Of Service ◽  
Mobile Networks ◽  
Service Provision

Quality of Service in UMTS Mobile Systems

2010 ◽  
pp. 14-51
Author(s):  
Jahangir Dadkhah Chimeh
Keyword(s):  
Quality Of Service ◽  
Mobile Systems ◽  
System Capacity ◽  
Data Traffic ◽  
Air Interface ◽  
Layer 2 ◽  
Qos Parameters ◽  
Erlang Capacity ◽  
Transport Channels

Mobile systems and particularly UMTS are growing fast. These systems convey data based services in addition to customary voice services. Quality of service is a function of data rate, delay and signal to noise plus interference ratio in these systems. In this Chapter first the author pays attention to UMTS and its QoS architecture, then to service categorization due to QoS. Afterwards he reviews some QoS parameters. Then he studies Layer 2 QoS parameters and general concepts about Transport channels. Then he review TCP effects on the throughput in the air interface. he introduces HSDPA in the next section. Finally he pays attention to data traffic models and their effects on the system capacity and Erlang capacity and delay in the system.

Sign in / Sign up

Export Citation Format

Share Document