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RESOURCE MANAGEMENT AND QoS CONTROL IN MULTIPLE TRAFFIC WIRELESS AND MOBILE COMMUNICATION SYSTEMS

XU, YONG
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132017118

Abstract Details

2005, MS, University of Cincinnati, Engineering : Electrical Engineering.
The original wireless and mobile communication system used to carry voice calls only. In recent years, data service has been introduced into the system. The analysis in wireless communication has been performed extensively on real-time and non-real-time calls. Now traffic from Internet applications turns out to have more different types of quality of service (QoS) requirements. As we know, DiffServ (DS) provides an efficient way to work through different types of traffic in scalable wireline networks. To ensure end-to-end QoS support, we need to extend DiffServ from the wireline network into the wireless radio access network. The mobility natural of wireless communication system brings another level of complexity we need to take care of: the handoff event. Our proposed preemptive priority scheme deals with differenciated services in wireless and mobile communication system and gives higher priority to handoff calls than originating ones. Based on this system model, dynamic channel allocation scheme is presented. Giving the concept of logical channel or basic bandwidth unit (BBU), data service can benefit from multiple BBU assignment and reduce its service time. That in turn, allows the system to accept more user requests under certain traffic load. When traffic load is high, system can reclaim the additional channels assigned to these services to serve other incoming requests. Another topic of this thesis is about rate adaptation scheme. All previous approaches for resource management have a common assumption that the wireless channels are identical and static. Such homogeneous and time-invariant hypotheses reduce the complexity in theoretical analysis and simulation. However, a good radio frequence (RF) link allows higher rate of transmission with the help of enhanced coding and modulation methods. With rate adaptation scheme, we get better system utilization and can perform more specific preemption activities.
Qing-An Zeng (Advisor)
75 p.
Wireless Communication; Multiple Traffic; QoS; Resource Management

Recommended Citations

Citations

  • XU, Y. (2005). RESOURCE MANAGEMENT AND QoS CONTROL IN MULTIPLE TRAFFIC WIRELESS AND MOBILE COMMUNICATION SYSTEMS [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132017118

    APA Style (7th edition)

  • XU, YONG. RESOURCE MANAGEMENT AND QoS CONTROL IN MULTIPLE TRAFFIC WIRELESS AND MOBILE COMMUNICATION SYSTEMS. 2005. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132017118.

    MLA Style (8th edition)

  • XU, YONG. "RESOURCE MANAGEMENT AND QoS CONTROL IN MULTIPLE TRAFFIC WIRELESS AND MOBILE COMMUNICATION SYSTEMS." Master's thesis, University of Cincinnati, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132017118

    Chicago Manual of Style (17th edition)

ucin1132017118
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© 2005, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.