WLAN中合作式功率控制算法研究

在WLAN中，延迟有限，网络整体消耗能量最小化的功率控制算法研究较少。对于该问题进行建模分析，通过理论推导，将该非凸优化问题转化成广义几何规划问题。经过分析，将问题近似为线性规划，并给出全局优化算法。对于WLAN中，多个无线接入设备在一定传输时间内的信道情况进行预测，给出延迟有限能量最小化的集中式在线算法。实验结果显示，采用提出的信道预测方法，在线算法的计算结果与集中式算法结果较为接近。

Research on Cooperative Power Control Algorithm in WLAN

In WLAN, there is no research on the delay constrained, minimizing the overall network energy consumption power control algorithm. This paper analyzes the modeling of the problem through theoretical derivation and transforms the non -convex optimization problem into a generalized geometric programming problem. After analysis, the problem is approximated as linear programming, and gives global optimization algorithms. For WLAN, channel conditions are predicted of the plurality of wireless access devices within a certain transmission time, and the delay constrained energy minimization centralized online algorithm is given. Experimental results show that using the proposed channel estimation method, the computational results of online algorithm and results of centralized algorithm are close.