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首页> 外文期刊>Vehicular Technology, IEEE Transactions on >Handoff Management and Admission Control Using Virtual Partitioning With Preemption in 3G Cellular/802.16e Interworking
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Handoff Management and Admission Control Using Virtual Partitioning With Preemption in 3G Cellular/802.16e Interworking

机译：在3G Cellular / 802.16e互通中使用带抢占的虚拟分区进行切换管理和准入控制

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摘要

The integration of third-generation (3G) cellular networks and IEEE 802.16e networks is an important interworking case within the forthcoming fourth-generation heterogeneous wireless networks. In this paper, we extend the virtual partitioning with preemption technique for admission control in cellular/802.16e interworking and evaluate its performance. First, we describe the mobility scenario between 3G cellular networks and IEEE 802.16e networks in terms of the horizontal (intrasystem) and vertical (intersystem) handoffs that can occur and derive the corresponding handoff rate equations. We then propose admission-control algorithms for connection requests that consider the class of service (i.e., real time or nonreal time) and the type of user (i.e., new or handoff). For the handoff requests, a different priority is assigned to each type of handoff. A joint connection- and packet-level optimization approach is used for quality-of-service (QoS) provisioning. The accuracy of the analytical model is validated via simulations. Numerical results show significant performance improvement. The blocking probabilities for new connection requests can be reduced by 70% when the joint QoS optimization approach is used.
机译：在即将到来的第四代异构无线网络中，第三代（3G）蜂窝网络和IEEE 802.16e网络的集成是一个重要的互通案例。在本文中，我们使用抢占技术扩展了虚拟分区，以实现Cellular / 802.16e互通中的接纳控制并评估其性能。首先，我们根据可能发生的水平（系统内）和垂直（系统间）切换来描述3G蜂窝网络和IEEE 802.16e网络之间的移动情况，并推导相应的切换速率方程。然后，我们针对连接请求提出准入控制算法，该算法考虑服务等级（即实时或非实时）和用户类型（即新用户或越区切换）。对于越区切换请求，将不同的优先级分配给每种越区切换类型。连接和数据包级别的联合优化方法用于服务质量（QoS）设置。通过仿真验证了分析模型的准确性。数值结果显示了显着的性能改进。使用联合QoS优化方法时，可以将新连接请求的阻塞概率降低70％。

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