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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/3102


    Title: Utilization Optimization for OVSF Multi-code Assignment in WCDMA Networks
    Authors: Department of Computer Science and Information Engineering, Asia University
    Contributors: Department of International Business
    Keywords: WCDMA;OVSF code;multi-code
    Date: 2007
    Issue Date: 2009-11-16 19:34:04 (UTC+8)
    Publisher: Asia University
    Abstract: Radio resources, such as WCDMA OVSF codes, are scarce and valuable in cellular mobile
    networks, necessitating the need for their efficient use by network operators. Many OVSF
    code-assignment schemes for WCDMA networks have been widely studied. This paper proposes an
    evaluation model to accurately predict OVSF multi-code assignment performance in WCDMA
    networks. Theoretical and simulation results indicate that the proposed analytical model works to evaluate the multi-code assignment performance. Two important performance measures, call blocking probability (CBP) and bandwidth utilization (BU), are then adopted to solve a utilization optimization problem for WCDMA network planning and re-planning. The optimization problem applies a given
    traffic statistic and a specified maximum CBP constraint to maximize the BU by discovering the
    optimal number of basic-rate codes in a Node-B. Consequently, the operators will be able to use the results to deploy their codes flexibly, and to improve their profitability.
    Relation: Asian Journal of Health and Information Sciences 2(1-4):49-65
    Appears in Collections:[Asian Journal of Health and Information Sciences] v.2 n.1-4

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