Bluetooth is a short distance communication radio technologys which can exchange the wireless data between the equipments, including mobile phones, PDA, wireless headset, laptop computers and associated peripherals. ZigBee is a kind of close, low complexity, low power consumption, low data rate, low cost, two-way wireless communication technology. ZigBee also is a kind of highly
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With the rapid development of mobile communications and broadband wireless access,people come to realize that the future trend of development of mobile communications is not technically dominant, but a variety of wireless access technologies coexist and complement with each other, offer a diversity of access services, seamless mobility, and effectively meet the demand for personal
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With the development of networks and wireless technologies, the integration of variousheterogeneous networks has drawn more and more attention within these years, which canultimately realize the ubiquitous network society. Ubiquitous network makes anyone can easilyaccess and use a network at anytime from anywhere and from any appliance. To guarantee the QoS,the reasonable call admission control
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With the development of networks and wireless technologies, the integration of variousheterogeneous networks has drawn more and more attention within these years, which canultimately realize the ubiquitous network society. Ubiquitous network makes anyone can easilyaccess and use a network at anytime from anywhere and from any appliance. To guarantee the QoS,the reasonable call admission control
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The integration of heterogeneous wireless networks is the inevitable development trend of next generation mobile communication. The handoff management is an important part of mobility management, and network selection policy that serves as a link between past and future is the key factors affecting the handoff quality. On the other hand, network coding can reduce
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Higher transmission speed, larger system capacity, wider coverage of telecommunication service and more rational resource allocation are the future directions of current mobile communication system. Effective cooperation of the heterogeneous networks is the inexorable trend of network technology. In heterogeneous wireless networks, radio resource management has become one of the most important problems. Researches on
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In the future, the communication network will be heterogeneous wireless networks that integrate various wireless access technologies, and take the advantages of the different access networks to provide ubiquitous services and meet the needs of broadband, personal and intelligent business. Positioning technology as a key technology in the wireless communication, many functions of terminal rely
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The integration and interworking of heterogeneous wireless networks is the inevitable trend of future mobile communication. Different wireless access technologies exhibit different features on coverage area, service quality and mobility support, and meet different requirements of users. The integration of different wireless access networks becomes the principle character of next generation mobile communication. While access
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In recent years, with the rapid development of wireless communications, the wireless mobile communication system in the future will be the era of coexistence from a variety of wireless access technologies. These wireless access technologies have their own characteristics and advantages in network coverage, system capacity and so on. The major challenges operators are facing
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With the rapid development of wireless communication technology, coexistence andintegration of different access networks has become the inevitable trend of future wirelessnetworks. In the coexistence of a variety of techniques for heterogeneous wireless networkenvironment, as the basis for integration and coordination of heterogeneous wirelessnetworks, the research on vertical handoff has far-reaching significance to optimize loadmanagement
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