摘要
该文研究了D2D通信使用LTE-A网络上行链路的资源分配问题。首先将问题建模为混合整数非线性规划问题(MINLP),其次根据待接入用户对各信道的青睐程度计算特征值列表并形成相应联盟。在保证各用户服务质量(QoS)的情况下,利用最大加权二部图匹配(MWBM)方法为待接入网络用户寻找合适的资源及复用的组合。仿真结果表明,该算法打破了D2D用户在数据传输过程中一直处于专用或者复用模式的束缚,扩大了D2D用户对可选用的资源范围,与现有算法相比,可有效提高系统的总速率。
Uplink resource allocation problem in Device-to-Device （D2D） communications underlaying LTE-A networks is analyzed. First, tile problem is modeled as a Mixed Integer NonLinear Programming （MINLP）. Then the algorithm calculates each waiting user＇s identity list in accordance with the preference for channels to form coalitions. On the premise of guaranteeing the Quality of Service （QoS） of users in the system, the suitable resource and reuse partner are assigned to each user through Maximum Weighted Bipartite Matching （MWBM）. The simulation results show that this algorithm can break the constraint that D2D pairs can only stay on dedicated or reused mode when they are on data transmission, and expand the range of available resource for D2D users, which increases effectively the system sum-rate compared with the existing algorithm.
作者
钱志鸿
阎双叶
田春生
王鑫
QIAN Zhihong1,YAN Shuangye1,TIAN Chunsheng1,WANG Xin1,2(1. College of Communication Engineering, Jilin University, Changchun 130012, China;2.College of Information ＆ Technology, Jilin Agricultural University, Changchun 130018, China)
出处
《电子与信息学报》
EI
CSCD
北大核心
2018年第10期2287-2293,共7页
Journal of Electronics & Information Technology
基金
国家自然科学基金(61771219)
吉林大学基础科研项目(SXGJQY2017-9
2017TD-19)~~
关键词
无线通信
D2D通信
资源分配
最大加权二部图匹配
Wireless communications
D2D communications
Resource allocation
Maximum Weighted Bipartite Matching （MWBM）
