ASIA unversity:Item 310904400/8898
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    题名: Utilization optimization for OVSF multi-code assignment in WCDMA networks
    作者: J.C. Chen;H.F. Ng;H.L. Lin
    关键词: mobile networks;WCDMA;OVSF code;multi-code
    日期: 2007
    上传时间: 2010-04-15 13:41:41 (UTC+8)
    摘要: 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.
    關聯: Asian Journal of Health and Information Sciences,2(1-4):49-65.
    显示于类别:[資訊工程學系] 期刊論文


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