Video Transmission Control System Based on 3G Wireless Network

2013 ◽  
Vol 423-426 ◽  
pp. 2621-2624
Author(s):  
Kun Qi Wang ◽  
Lei Xiong ◽  
Bao Chen Yang ◽  
Chen Cong Meng
Keyword(s):  
Wireless Networks ◽  
Control System ◽  
Wireless Network ◽  
Remote Monitoring ◽  
Video Transmission ◽  
Video Data ◽  
Video Codec ◽  
Wireless Transmission ◽  
Video Capture ◽  
Transmission Control

A wireless video transmission system is put forward in this paper. It is constituted by 3G wireless networks and ARM11. Collecting video data is used by V4L2 technology, and the H.264 video codec is used by S3C6410 processors the MFC module. The video codec is sent to remote monitoring center via 3G wireless network. The System can complete video capture, coding, wireless transmission and decoding, and displaying on the LCD. The experiment show the system can achieve wireless remote monitoring.

Study on Video Transmission System of Central Heating Based on 3G Wireless Network

2014 ◽  
Vol 536-537 ◽  
pp. 157-160
Author(s):  
Tie Qiang Sun ◽  
Yong Li An
Keyword(s):  
Wireless Networks ◽  
Heat Exchange ◽  
Wireless Network ◽  
Remote Monitoring ◽  
Video Transmission ◽  
Transmission System ◽  
Stable Operation ◽  
Video Images ◽  
Central Heating

Taking the central heating of Caofeidian for example, this paper introduces the video transmission system which bases on 3G wireless networks and the realization of communication. The video images are collected in remote heat-exchange station and are transmitted to the monitoring and controlling center through 3G wireless network. The result of operation indicates that the system which meets the requirements of long-term stable operation of remote monitoring is not only easily operated, but also with high regulation accuracy and stable.

scholarly journals Development and research of Wi-Fi network for receiving and transmitting telemechanical information in the training laboratory

2020 ◽  
Vol 99 (3) ◽  
pp. 124-131
Author(s):  
B. Orobchuk ◽  
V. Koval
Keyword(s):  
Wireless Networks ◽  
Wireless Network ◽  
Data Transmission ◽  
Short Range ◽  
Local Area ◽  
Educational Process ◽  
Research Development ◽  
Transmission Control ◽  
Sensors And Actuators ◽  
Potential Use

The article deals with the issues of research, development and implementation of local area wireless networks in the educational process, especially with the study of the signal level for data transmission control of the local wireless network indoors. The controlled telemechanics unit uses wired systems for communication of the operator with various sensors and actuators, which creates certain difficulties and risks for the operator working in site of the telemechanics unit. The article considers a potential use of wireless technologies in the educational process, which demonstrates how to secure the operator and reduce the time to bypass all the sensors of the actuators, as well as to develop a short-range wireless subsystem.

Efficient Streaming of Video Frames over Heterogeneous Wireless Network

2018 ◽  
Vol 7 (3.34) ◽  
pp. 226
Author(s):  
K Lavanya ◽  
Dr R.Kanthavel ◽  
Dr R.Dhaya
Keyword(s):  
Wireless Networks ◽  
Wireless Network ◽  
Packet Loss ◽  
Video Data ◽  
Transport Layer ◽  
Transmission Protocol ◽  
Heterogeneous Wireless Network ◽  
Heterogeneous Environment ◽  
Video Frames

Transferring high quality video stream through a heterogeneous wireless network has many challenges due to the varying data rate and round trip time(RTT) involved in the network and the more stringent quality of service(QoS) requirements of the multimedia application such as on time delivery , minimum delay etc. User datagram protocol (UDP), a connectionless, unreliable transport protocol has been widely used for transferring video frames.UDP cannot guarantee reliable information delivery and  may lead to packet loss. The packet loss, increases with time varying bandwidth availability in the heterogeneous wireless networks. Transmission control protocol(TCP) can be an alternate transport layer protocol to provide reliable delivery of video information. But, using TCP for wireless networks has limitations due to misinterpretation of packet loss, frequent link failure, asymmetric link behaviour etc.,. which minimizes the throughput and in turn degrades the quality of the video frames transmitted. This paper analyses an efficient scheme to use Heterogeneous Environment Retransmission algorithm with SCTP (HERTS) to transfer video data in the heterogeneous environment. By using multi-homing and multi-streaming feature of Stream control transmission protocol (SCTP), the packet delivery rate, through put and delay requirements can be optimized. The transport layer model suggested in this paper aims at reducing the occupancy of the retransmitted packets in the link, by using a separate end to end path allotted for retransmission.  

A Cross-Layer Design for Video Streaming Over 802.11e HCCA Wireless Network

2013 ◽  
pp. 261-273
Author(s):  
Hongli Luo
Keyword(s):  
Wireless Network ◽  
Video Streaming ◽  
Wireless Lan ◽  
Video Transmission ◽  
Video Codec ◽  
Ieee 802.11E ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Queuing Delay

Video transmission over wireless networks has quality of service (QoS) requirements and the time-varying characteristics of wireless channels make it a challenging task. IEEE 802.11 Wireless LAN has been widely used for the last mile connection for multimedia transmission. In this paper, a cross-layer design is presented for video streaming over IEEE 802.11e HCF Controlled Channel Access (HCCA) WLAN. The goal of the cross-layer design is to improve the quality of the video received in a wireless network under the constraint of network bandwidth. The approach is composed of two algorithms. First, an allocation of optimal TXOP is calculated which aims at maintaining a short queuing delay at the wireless station at the cost of a small TXOP allocation. Second, the transmission of the packets is scheduled according to the importance of the packets in order to maximize the visual quality of video. The approach is compared with the standard HCCA on NS2 simulation tools using H.264 video codec. The proposed cross-layer design outperforms the standard approach in terms of the PSNRs of the received video. This approach reduces the packet loss to allow the graceful video degradation, especially under heavy network traffic.

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