• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE transactions on mobile computing >Bandwidth Reallocation for Bandwidth Asymmetry Wireless Networks Based on Distributed Multiservice Admission Control
【24h】

Bandwidth Reallocation for Bandwidth Asymmetry Wireless Networks Based on Distributed Multiservice Admission Control

机译：基于分布式多业务准入控制的带宽不对称无线网络的带宽分配

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper addresses when and how to adjust bandwidth allocation on uplink and downlink in a multi-service mobile wireless network under dynamic traffic load conditions. Our design objective is to improve system bandwidth utilization while satisfying call level QoS requirements of various call classes. We first develop a new threshold-based multi-service admission control scheme (DMS-AC) as the study base for bandwidth re-allocation. When the traffic load brought by some specific classes under dynamic traffic conditions in a system exceeds the control range of DMS-AC, the QoS of some call classes may not be guaranteed. In such a situation, bandwidth re-allocation process is activated and the admission control scheme will try to meet the QoS requirements under the adjusted bandwidth allocation. We explore the relationship between admission thresholds and bandwidth allocation by identifying certain constraints for verifying the feasibility of the adjusted bandwidth allocation. We conduct extensive simulation experiments to validate the effectiveness of the proposed bandwidth re-allocation scheme. Numerical results show that when traffic pattern with certain bandwidth asymmetry between uplink and downlink changes, the system can re-allocate the bandwidth on uplink and downlink adaptively and at the same time improve the system performance significantly.
机译：本文讨论了在动态流量负载条件下，何时以及如何调整多业务移动无线网络中上行链路和下行链路的带宽分配。我们的设计目标是在满足各种呼叫类别的呼叫级别QoS要求的同时提高系统带宽利用率。我们首先开发一种新的基于阈值的多服务准入控制方案（DMS-AC），作为带宽重新分配的研究基础。当某些特定类别在系统中的动态流量条件下带来的流量负载超出DMS-AC的控制范围时，可能无法保证某些呼叫类别的QoS。在这种情况下，将激活带宽重新分配过程，准入控制方案将尝试在调整后的带宽分配下满足QoS要求。我们通过确定某些约束条件来检验准入阈值与带宽分配之间的关系，以验证调整后的带宽分配的可行性。我们进行了广泛的仿真实验，以验证所提出的带宽重新分配方案的有效性。数值结果表明，当上下行之间具有一定带宽不对称性的流量模式发生变化时，系统可以自适应地在上下行上重新分配带宽，同时显着提高系统性能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号