Efficient radio resource management for wireless multimedia communications: a multidimensional QoS-based packet scheduler
Efficient radio resource management for wireless multimedia communications: a multidimensional QoS-based packet scheduler
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DOI：
10.1109/twc.2005.858032
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发表时间：
2005-11
影响因子：
10.4
通讯作者：
S. Abedi
中科院分区：
文献类型：
--
作者：
S. Abedi
未来的无线多媒体系统将支持具有不同容量和比特率范围的各种服务。对于这些系统，非常期望实时会话和非实时服务以优化的方式有效地共享可用信道和带宽。针对传统分组调度技术提出的具有固定或缓慢变化的动态的分区资源整形在无线电信道和业务的快速变化的动态下被证明是困难和低效的。考虑到几乎所有的方面（尺寸）的服务质量（QoS）的规定，建议统一的快速动态多维QoS为基础的数据包调度（MQPS）在本文中优雅，高效地封装功能的许多可能的数据包调度策略。MQPS将优化和调整机制应用于分组调度权重，以响应于变化的业务和无线电信道条件而采用最合适的分组调度和信道分配策略。作为示例，该技术被应用于高速下行链路分组接入（HSDPA）系统。结果表明，MQPS提供了显着更好的性能比现有的技术，通过满足所有的要求，一个成功的QoS配置到最大可能的水平同时。
Future wireless multimedia systems will support a variety of services with diverse range of capabilities and bit rates. For these systems, it is highly desired for real-time conversational and non-real-time services to efficiently share the available channels and bandwidth in an optimized way. The partitioned resource shaping with either fixed or a slow changing dynamic, proposed for conventional packet scheduling techniques, proves difficult and inefficient under fast-changing dynamics of radio channel and traffic. By taking into account almost all the aspects (dimensions) of quality-of-service (QoS) provisioning, the proposed unified fast dynamic multidimensional QoS-based packet scheduler (MQPS) in this paper elegantly and efficiently encapsulates features of many possible packet scheduling strategies. MQPS applies an optimization and tuning mechanism to packet scheduling weights to adopt the most appropriate packet scheduling and channel assignment strategy in response to the varying traffic and radio channel conditions. As an example, the technique is applied to a high-speed downlink packet access (HSDPA) system. It is shown that MQPS provides significantly better performance than existing techniques by satisfying all the requirements of a successful QoS provisioning to maximum possible level simultaneously.