OFDM系统中下行链路的实时公平调度算法

提出了应用于以正交频分复用技术为基础的蜂窝移动通信系统的下行链路资源调度机制，称为实时公平调度算法。该算法通过独特的初始化子信道分配机制获得一个比较公平的子信道分配，然后通过公平精度参数控制迭代进一步优化使子信道分配更公平，并通过最小公平指数使分配方案满足公平约束条件。仿真分析证明，在每个调度周期内实时公平调度算法可以保证所有用户公平地共享带宽资源，而且可以满足给定的最小公平指数要求。

Real-time Fair Scheduling Algorithm for Downlink OFDM Systems

A downlink resource scheduling scheme called real-time fair scheduling algorithm is proposed for cellular mobile telecommunication system which is based on orthogonal frequency division multiplexing technology. This algorithm achieves a relatively fair subchannel assigning scheme by a novel initialization for subchannel assignment, and then employs fairness precision parameters to control iterative loop for further optimization to make the subchannel assignment fairer, furthermore, this algorithm uses a minimal fairness index to make the assignment scheme fulfill the fairness restriction. Simulation analysis has proved that real-time fair scheduling algorithm could ensure all the users share the bandwidth resource fairly and fulfill predefine minimal fairness index in every scheduling interval.