In the next-generation wireless network, user profiles such as the location, the velocity (both speed and direction), and the resource requirements of the mobile device can be accurately determined and maintained by t...
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In the next-generation wireless network, user profiles such as the location, the velocity (both speed and direction), and the resource requirements of the mobile device can be accurately determined and maintained by the network on a per-user basis. We investigate the design of a Differentiated-Services architecture which exploits user profiles to maximize the network efficiency and which supports differentiated services classes, each with different quality-of-service (QoS) guarantees. In this paper, we provide implementation details of such an architecture for the Third-Generation Partnership Project (3GPP) network. The key underlying primitive of the architecture is the use of user profiles to perform advance resource reservation in target cells of the wireless cellular network. We identify the design tradeoffs and present performance results for an architecture consisting of two service classes, namely (1) a higher-cost profiled service with higher QoS, and (2) a lower-cost non-profiled service with best-effort QoS. Our analysis indicates that a significant decrease in the dropping probability - and, hence, higher QoS - can be guaranteed to users who subscribe to the profiled service. We examine the tradeoffs associated with some of the key system parameters including the reservation distance and the reservation granularity, and we determine their values which maximize the improvement in the dropping probability for all users.
WWIC 2007 was organized by the University of Coimbra, Portugal, and it was the fifth event of a series of International conferences on Wired/Wireless Internet Communications, addressing research topics such as the des...
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ISBN:
(数字)9783540726975
ISBN:
(纸本)9783540726944
WWIC 2007 was organized by the University of Coimbra, Portugal, and it was the fifth event of a series of International conferences on Wired/Wireless Internet Communications, addressing research topics such as the design and evaluation of protocols, the dynamics of the integration, the performance trade-offs, the need for new performance metrics, and cross-layer interactions. Previous events were held in Berne (Switzerland) in 2006, Xanthi (Greece) in 2005, Frankfurt (Germany) in 2004, and Las Vegas (USA) in 2002. As in 2005 and 2006, WWIC was selected as the official conference by COST Action 290 (Wi-QoST–Traffic and QoS Management in Wireless multimedia Networks). WWIC 2007 brought together active and proficient members of the networking community, from both academia and industry, thus contributing to scientific, strategic, and practical advances in the broad and fast-evolving field of wired/wireless Internet communications. The WWIC 2007 call for papers attracted 257 submissions from 36 different countries in Asia, Australia, Europe, North America, and South America. These were subject to thorough review work by the Program Committee members and additional reviewers. The selection process was finalized in a Technical Program Committee meeting held in Malaga, Spain, on February 15, 2007.
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