针对通信时滞与信道干扰的无线网络实时资源分配与性能优化

无线网络业务的增长及多样化对无线网络的服务质量提出了更高的要求。无线网络的资源有限、通信时滞大、信道动态变化等特点,使得网络资源的有效利用和公平分配非常关键，并且十分困难。本项目拟研究在信道随机干扰和时滞环境下无线网络资源的公平分配模型及实时分配方案。在随机信道干扰下研究基于效用函数理论公平的实时资源分配方案；并在此基础上建立起以时滞性能和用户效用相结合为目标的无线资源分配模型及优化方案；最后研究多业务混合的网络资源分配框架，并提出数学优化模型及解决方案。项目将采用相关的数学理论和仿真手段开展研究，力求使研究结果能应用于无线网络工程。

There are challenges in Quality of Service (QoS) guarantee in wireless networks due to the explosive user's demand and diversity. Particularly, it is a key and difficult issue in achieving satisfactory performance how to allocate the resource (e.g., bandwidth) in an efficiently and fairly manner with consideration to the factors of source limitation, significant communication delay and channel dynamical variations. This project is aimed to face those challenges that studies the fairly but timely resource allocation scheme and model in wireless networks under the conditions that there are random channel inteference and communication delays. The network utility maximazation (NUM) model will be proposed to characterize the wireless user's utility incorporated with communication delay. A comprehensive NUM model and mathematical framwork will be proposed and its solution will be found that leads to the bandwidth allocation for mixture of traffic including Soft QoS traffic, Hard QoS traffic and Best effort traffic. The outcomings of this project will be promising in wireless communication engineering applications as the results are based on mathematical analyses and are then verified by simulations.