首页> 外文会议>13th ACM international conference on modeling, analysis and simulation of wireless and mobile systems 2010 >Optimal Flexible Spectrum Partitioning for Multihop Wireless Networks with Software Defined Radios
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Optimal Flexible Spectrum Partitioning for Multihop Wireless Networks with Software Defined Radios

机译:具有软件定义无线电的多跳无线网络的最佳灵活频谱划分

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We investigate the problem of scheduling and flexible spectrum access in multi-hop networks with software defined radios. We present a primal-dual decomposition to provide an exact solution for this complex optimization problem. We show that obtaining the optimal solution is computationally not feasible. Thus, we first relax the SINR constraint and use a simplified graph-based interference model. Second, we use a simulated annealing (SA) approach for solving the dual sub-problem. Our SA approach is then augmented with a feasibility check so that only SINR-feasible schedules are passed back to the primal.
机译:我们调查软件定义的无线电在多跳网络中的调度和灵活频谱访问的问题。我们提出了原始对偶分解,以为该复杂的优化问题提供精确的解决方案。我们表明,获得最优解在计算上是不可行的。因此,我们首先放宽SINR约束,并使用简化的基于图形的干扰模型。第二,我们使用模拟退火(SA)方法来解决双重子问题。然后,通过可行性检查来增强我们的SA方法,以便仅将SINR可行的计划传递回原始计划。

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