As a communication infrastructure for wireless data transmission, the wireless multi-hop network is used to achieve data processing and transmission between the sending end and the receiving end. The easy-to-build characteristics of the wireless multi-hop network and its low cost of hardware make it widely used in military, medical and some other fields. On the
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The sensor nodes of wireless sensor network have small size and use battery-powered. Thus the processing and storage capacity, the communication range, energy and other issues of a single node is limited. However, the adjacent nodes in the shared channel can easily cause collision in data transmission, this not only leads to increase packet loss
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Nowdays, with the development of science and technology, particularly the rapid development of communication technology, the simple voice and SMS services can not meet the needs of daily life. IEEE 802.16e is an emerging broadband wireless access technology, which provides users with sufficient bandwidth, high transmission rate and multimedia services with high spectral efficiency, IEEE
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With the constant development of automobile industry and the technique of networks, people are more and more eager to communicate wherever and whenever possible. Meanwhile, according to the needs of people, various of services are applied into vehicle networks now, so that only if MANET can be promoted into an intelligent network through effective management,
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With the rapid development of the wireless networks,more and more multimedia application based on wireless networks are now emerged. However, the characteristics of the wireless networks restricted the development of such applications.Therefore, how to transport video traffic reliably in wireless networks is a hot research topic.At present, as the extention of H.264/AVC standard, H.264/SVC has
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This paper makes a study of the cross-layer design for video business in the wireless local area network (WLAN) transmission. At application layer the video compression coding standard (H.264) is used , and the protocol of 802.11e is used at MAC layer. Comparing with other standards, H.264 enhances the compression efficiency and reduces the encoded
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With the development and diversification of wireless network technologies, the wireless communication terminal is evolved in the direction of multi-mode one and the heterogeneous wireless network convergence and cross-layer design have become a hot research area. As a strong support of theoretical research and technological development, efficient and accurate simulation of multiple heterogeneous wireless networks
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This paper makes a study of the cross-layer design for video business in the wireless local area network (WLAN) transmission. At application layer the video compression coding standard (H.264) is used , and the protocol of 802.11e is used at MAC layer. Comparing with other standards, H.264 enhances the compression efficiency and reduces the encoded
(Read More…)
With the development and diversification of wireless network technologies, the wireless communication terminal is evolved in the direction of multi-mode one and the heterogeneous wireless network convergence and cross-layer design have become a hot research area. As a strong support of theoretical research and technological development, efficient and accurate simulation of multiple heterogeneous wireless networks
(Read More…)
Recently, research on providing QoS support and guaranteeing QoS requirements in wireless multi-hop networks has received much attention.QoS routing can make significant contributions to the provision of QoS, and to the improvement of traffic performance. The key component of any QoS routing algorithm is the route discovery task, which essentially involves the link or path
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