A Wireless Revenue Based Scheduler with QoS Support
A Wireless Revenue Based Scheduler with QoS Support
复制标题
具有 QoS 支持的基于无线收入的调度程序
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
H. Meyr
中科院分区：
文献类型：
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作者：
A. Senst;P. Schulz;Daniel Croonen;G. Ascheid;H. Meyr
我们提出了一种基于收入的调度方法的时隙无线通信系统，需要服务质量（QoS）的要求，如一定的最低数据速率，最大误码率，最大延迟或最大延迟方差考虑。待优化的目标函数是网络运营商的收入。QoS需求隐式映射到收入，利用适当的收入函数。由此产生的优化问题太复杂，无法以封闭形式求解。然而，通过引入一些简化，可以将其转换为计算每个时隙中每个用户的度量并调度具有最大度量的用户的问题。此外，我们提出了一种更简单的启发式调度器。这两种方法的性能进行了评估，通过蒙特卡罗模拟和可实现的收入的上限进行比较。事实证明，解析导出的调度器实现了这个上限的99%。
We propose a revenue based scheduling approach for a time slotted wireless communications system that takes Quality-of-Service (QoS) requirements such as a certain minimum data rate, maximum bit error rate, maximum delay or maximum delay variance into account. The objective function to be optimized is the revenue of the network operator. The QoS requirements are implicitly mapped onto the revenue by utilizing appropriate income functions. The resulting optimization problem is too complex to solve it in closed form. However, by introducing some simplifications it can be transformed into the problem of calculating a metric for each user in each time slot and scheduling the user who has the largest metric. Additionally, we propose an even simpler heuristic scheduler. The performance of the two approaches is evaluated by Monte Carlo simulations and compared with an upper bound of the achievable revenue. It turns out that the analytically derived scheduler achieves 99 % of this upper bound.