The improvement of wireless communication technology makes it possible to transmit video stream over mobile Internet, while relatively low-speed and more complex network environment is vulnerable enough to bring along many challenges, mainly focuses on the bit rate, compression rate and so on. After researching traditional video compression algorithm, we present a control algorithm based
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With the development of third generation mobile communication network (3G), remote wireless video surveillance as a new form of applications is given more and more attentions.3G communication network is widely used in various industries for its wide coverage and extensive transmission.This paper designs a video transmission based on the 3G wireless network to achive wireless
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TETRA digital trunked system is a special mobile communication system for commanding, dispatching and emergency communication. Dispatchers can monitor important group or a single wireless user directly by dispatching terminal, make voice and data communication with wireless user, achieve to dispatching efficient and convenient. Therefore, the dispatching terminal is an important part in digital trunked
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With the rapid development of science and technology, wireless communication plays a more and more important part in daily lives. However, due to the fixed spectrum allocation policy, spectrum utilization gets lower and spectrum resources become scarce, which have been a major factor of restricting the wireless communication development. The proposed idea of cognitive radio
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Wireless multi-hop network is composed of numbers of wireless nodes, with high mobility and dynamic topology meanwhile easy to deploy. Applications based on wireless multi-hop network are more and more popular. In practice, multimedia transmission applications is highly real time demanding, require relatively stable bandwidth, have higher requirements on the network delay and channel quality.
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In recent years, with the development of the wireless communications and the next generation networks, wireless real-time video transmission is used more widely, this topic is a sub-project from “Information Highway Maintenance System in Henan Province” Project, which aims is that by wireless real-time video transmission system, the video images of damaged road surface can
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In recent years, with the development of the wireless communications and the next generation networks, wireless real-time video transmission is used more widely, this topic is a sub-project from “Information Highway Maintenance System in Henan Province” Project, which aims is that by wireless real-time video transmission system, the video images of damaged road surface can
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In recent years, as the development and progress of the computers, networking and multimedia, video communication service has been popular among people because of its vivid and picturesque characteristic. Also the advantages of video transmission in the network transmission are more and more obvious, and occupy an important position. Transmitting the signal that contains video
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In recent years, the rapid development of wireless technology and streaming media technology, promote the development of video surveillance systems to the direction of embedded, digital, networked, and the transformation of from wired to wireless. In this context, wireless video surveillance system based on embedded technology came into being, which will undoubtedly enrich the banking,
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With the rapid development of national economy of China in recent years, highway construction has entered a period of rapid development. Although the highway networks continue to expand and extend, it still cannot meet the demands of the traffic. For instance, traffic congestion is becoming serious, safety incidents occur frequently and its damage to the
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