多址干扰感知系统中滤波器Optimization的能量和频谱效率折衷
Energy and Spectral Efficiencies Trade-off with Filter Optimization in Multiple Access Interference-Aware
摘要：
本文分析了移动多址系统中两种资源的优化配置，频谱和能量，以及滤波器优化对系统性能的影响。考虑到吞吐量最大化和功耗最小化这两个相互冲突的度量，制定了分布式能量效率（EE）费用函数。此外，最佳能量频谱效率（EE-SE）的权衡时，每个节点分配的功率达到最佳的SINR响应，这保证了最大的EE。为了证明我们的分析的有效性，两个低复杂度的能量频谱效率的算法，基于分布式瞬时SINR水平的开发，分析了单用户和多用户检测滤波器对EE-SE折衷的影响。
英文摘要：
This work analyzes the optimized deployment of two resources scarcely available in mobile multiple access systems, i.e., spectrum and energy, as well as the impact of filter optimization in the system performance. Taking in perspective the two conflicting metrics, throughput maximization and power consumption minimization, the distributed energy efficiency (EE) cost function is formulated. Furthermore, the best energy-spectral efficiencies (EE-SE) trade-off is achieved when each node allocates exactly the power necessary to attain the best SINR response, which guarantees the maximal EE. To demonstrate the validity of our analysis, two low-complexity energy-spectral efficient algorithms, based on distributed instantaneous SINR level are developed, and the impact of single and multiuser detection filters on the EE-SE trade-off is analyzed.
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