首页> 外文会议>International Symposium on Computer and Information Sciences(ISCIS 2004); 20041027-29; Kemer-Antalya(TR) >Real-Time Admission Control Supporting Prioritized Soft Handoff Calls in Cellular DS-CDMA Systems
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Real-Time Admission Control Supporting Prioritized Soft Handoff Calls in Cellular DS-CDMA Systems

机译:在蜂窝DS-CDMA系统中支持优先软切换呼叫的实时准入控制

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This paper proposes a prioritized real-time admission control algorithm to support soft handoff calls with QoS assurance in both uplink and downlink signal to interference ratio (SIR) requirement. Admission control is formulated as a performance optimization model, in which the objective is to minimize handoff forced termination probability. The algorithm is based upon dynamic reserved channels (guard channels) scheme for prioritized calls, it adapts to changes in handoff traffics where associated parameters (guard channels, new and handoff call arrival rates) can be varied. To solving the optimization model, iteration-based Lagrangian relaxation approach is applied by allocating a time budget. We analyze the system performance, and computational experiments indicate that proposed dynamic guard channel approach outperforms other schemes.
机译:本文提出了一种优先的实时准入控制算法,该算法在上行链路和下行链路信噪比(SIR)要求中均支持具有QoS保证的软切换呼叫。准入控制被公式化为性能优化模型,其目的是使切换强制终止概率最小化。该算法基于用于优先呼叫的动态保留信道(保护信道)方案,它适应切换业务量的变化,其中相关参数(保护信道,新呼叫和切换呼叫到达率)可以改变。为了解决优化模型,通过分配时间预算来应用基于迭代的拉格朗日松弛方法。我们分析了系统性能,并且计算实验表明,提出的动态保护信道方法优于其他方案。

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