计算机科学 ›› 2019, Vol. 46 ›› Issue (5): 62-66.doi: 10.11896/j.issn.1002-137X.2019.05.009
随楠楠1, 徐友云2, 王聪1, 谢威1, 朱赟3
SUI Nan-nan1, XU You-yun2, WANG Cong1, XIE Wei1, ZHU Yun3
摘要: 针对H2H/M2M共存的LTE-A全频复用异构蜂窝网络,提出基于最大独立集的干扰协调和RB扩展分配算法(CGMMIS算法),以在保证RB分配连续性的前提下优化系统和速率。首先,基于节点之间的相对干扰强度构建干扰图。然后,CGMMIS算法将存在强干扰的节点分到不同的独立集中,同时最大化独立集内各节点的信道增益之和。最后,利用RB扩展分配算法保证RB分配连续性,使得节点仅选择使其可达速率最大的独立集。仿真结果表明,在M2M设备密集部署的场景下,CGMMIS算法的系统和速率明显优于非协同算法和基于着色的最大独立集随机搜索算法。
中图分类号:
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