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首页> 外文期刊>Computer Communications >An adaptive handoff priority scheme for wireless MC-CDMA cellular networks supporting realtime multimedia applications
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An adaptive handoff priority scheme for wireless MC-CDMA cellular networks supporting realtime multimedia applications

机译：支持实时多媒体应用的无线MC-CDMA蜂窝网络的自适应切换优先级方案

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摘要

An adaptive handoff priority scheme is proposed for a packet switching multicode (MC)-CDMA cellular network supporting realtime multimedia applications. The scheme jointly considers the physical, link and network layer characteristics, and gives service priority to handoff calls by exploiting the transmission rate adaptability of multimedia calls to the available radio resources. Based on the scheme, a call admission region is derived with the estimated cell capacity and the proposed packet scheduling and partial packet integration scheme and used for call admission control and handoff management with the satisfaction of quality of service requirements for all multimedia traffic, where the QoS parameters include the wireless transmission bit error rate, packet loss rate and delay requirement. Simulation results are given to demonstrate the viability of the proposed scheme.
机译：针对支持实时多媒体应用的分组交换多码（MC）-CDMA蜂窝网络，提出了一种自适应切换优先级方案。该方案共同考虑了物理，链路和网络层的特性，并通过利用多媒体呼叫对可用无线电资源的传输速率适应性，将服务优先权给予了越区切换呼叫。基于该方案，可以得出具有估计的信元容量和建议的分组调度和部分分组集成方案的呼叫接纳区域，并用于呼叫接纳控制和切换管理，满足所有多媒体业务的服务质量要求。 QoS参数包括无线传输误码率，丢包率和延迟要求。仿真结果表明了该方案的可行性。

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