A framework for opportunistic scheduling in wireless networks
A framework for opportunistic scheduling in wireless networks
复制标题
DOI：
10.1016/s1389-1286(02)00401-2
复制
发表时间：
2003-03-15
影响因子：
5.6
通讯作者：
Shroff, NB
中科院分区：
文献类型：
--
作者：
Liu, X;Chong, EKP;Shroff, NB
我们提出了一种称为机会主义调度的方法，该方法利用无线环境的时变特性来提高系统在一定服务质量/用户公平性要求下的整体性能。我们首先介绍了机会调度的一般框架，然后在该框架下确定了三类一般的调度问题。我们为这些调度问题中的每一个提供了最优解。所有提出的调度策略都是可在线实现的；我们给出了它们的参数估计算法和实现步骤。我们还展示了我们和其他人之前的工作如何直接适合或与此框架相关。通过仿真实验证明，与非机会主义调度方案相比，机会主义调度方案具有显著的性能提升。(C)2002 Elsevier Science B.V.保留所有权利。
We present a method, called opportunistic scheduling, for exploiting the time-varying nature of the radio environment to increase the overall performance of the system under certain quality of service/fairness requirements of users. We first introduce a general framework for opportunistic scheduling, and then identify three general categories of scheduling problems under this framework. We provide optimal solutions for each of these scheduling problems. All the proposed scheduling policies are implementable online; we provide parameter estimation algorithms and implementation procedures for them. We also show how previous work by us and others directly fits into or is related to this framework. We demonstrate via simulation that opportunistic scheduling schemes result in significant performance improvement compared with non-opportunistic alternatives. (C) 2002 Elsevier Science B.V. All rights reserved.