Autor: |
Al-Gizawi, Tareq, Peppas, Kostas, Axiotis, Dimitrios I., Protonotarios, Emmanuel N., Lazarakis, Fotis, Fotis Lazarakis |
Předmět: |
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Zdroj: |
IEEE Network; Jul/Aug2005, Vol. 19 Issue 4, p66-72, 7p |
Abstrakt: |
This article presents information on interlayer interoperability between the High Speed Downlink Packet Access (HSDPA) channel of the Universal Mobile Telecommunications System (UMTS) and WLAN as depicted in the cloudy area. These two radio access technologies can be seen as complementary, the first network supports user mobility, while the second supports portability and provides users with higher throughput within limited coverage areas. The main objective of future wireless networks is to provide universal ubiquitous coverage across different radio technologies through a single terminal, while offering a rich range of services with variable bandwidth and quality of service (QoS), anytime, anywhere. Such features require connectivity across multiple networks with different radio technologies, over different geographic areas, and access to different types of services, raising the need for interoperable networks. Interoperability can be defined as the capability of a heterogeneous network to support seamless mobility (roaming) between different access radio technologies, while maintaining users minimum QoS requirements. Future wireless communication systems shall consist of multiradio technologies deployed in overlapping wireless networks. |
Databáze: |
Complementary Index |
Externí odkaz: |
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