基于干扰抑制的自适应MBSFN资源分配算法  

Interference Suppression Based Adaptive Resource Allocation Algorithm in MBSFN

作　　者：陈雷[1] CHEN Lei(Department of Public Security Intelligence,Criminal Investigation Police University of China,Shenyang 110035,China)

机构地区：[1]中国刑事警察学院公安情报学系

出　　处：《北京邮电大学学报》2018年第4期51-55,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：辽宁省博士科研启动金项目(201601083);辽宁省自然科学基金项目(20180550046);辽宁省教育科学“十三五”规划2017年度基金资助项目(JG17DB537);中国刑事警察学院院级项目(D201703032);国家自然科学基金项目(61172058);2017、2018大学生创新项目

摘　　要：针对传统多播/广播单频网（MBSFN）资源分配算法主要以降低资源块使用数量为目标,并未考虑MBSFN的干扰抑制问题,提出了一种基于干扰抑制的自适应MBSFN资源分配算法（IS-ARAAM）.该算法对MBSFN区域拓扑关系进行数学建模,同时结合基站发射功率对MBSFN间同频干扰的影响,给出了完善的资源复用距离计算公式.仿真结果表明,IS-ARAAM算法在系统覆盖和速率上较传统算法均有明显改善,且能够通过调整资源复用距离来控制资源块消耗数量.The traditional resource allocation algorithms mainly aim at reducing the required resource units,without considering the interference suppression of multicast/broadcast single frequency network（ MBSFN）. Therefore,an interference suppression based adaptive resource allocation algorithm in MBSFN（ IS-ARAAM） is proposed. The topology relationship between MBSFNs is modeled and the transmit power of base station is also taken into consideration when calculating the reuse distance. Then IS-ARAAM is obtained according to the reuse distance. Simulations demonstrate IS-ARAAM is more effective to improve the rate and coverage of network comparing to traditional algorithms. Meanwhile,IS-ARAAM also provides a way to control the number of required resource blocks through adjusting the reuse distance.

关 键 词：多播/广播单频网 干扰抑制 资源分配 自适应 

分 类 号：TN929.53[电子电信—通信与信息系统]