WSNs中路由与能量收集速率的联合优化

Joint optimization of routing and energy harvesting rate in WSNs

针对带有能量收集装置的无线传感器网络(WSNs),提出了一种路由与能量收集速率联合优化的算法。通过规划节点能量收集装置的规格和网络路由,使WSNs在满足预算约束下达到最大的数据采集速率。算法将问题建模为一个组合优化问题,并通过凸松弛和变量离散化算法,得到一组次优结果,避免了高复杂度的穷举遍历。仿真结果表明:在不同的网络规模下,该算法性能均优于对比算法。

Propose an algorithm to jointly optimize routing and energy harvesting rate in wireless sensor networks （WSNs） with energy harvesting devices.By designing size and network routing of node energy harvesting devices,aiming at maximizing data sampling rate under the budget constraint.The algorithm models the problem as a combination optimization probles and by convex relaxation and variable discretization algorithm,and get a group of suboptimal solution avoid high complexity exhaustive search.The simulation results illustrate that performance of the algorithm is better than comparative algorithms in different network scales.