摘要
随着多媒体技术以及通信系统的发展,由3GPP组织提出的e_MBMS技术得到了广泛的关注与应用。该技术中如果传输不同业务的多个MBSFN小区相邻或重叠时会造成严重的小区间干扰问题,影响小区系统性能。提出一种MBSFN小区间干扰协调算法,通过对小区间相邻或重叠的关系进行区域划分,然后将不同时隙资源分配到相邻或是重叠区域来解决小区间的同频干扰问题。仿真结果表明,算法能够很好地解决MBSFN小区间的干扰问题,保证了用户服务质量,而且通过对时隙资源的复用改善了系统性能。
With the development of multimedia technology and communication systems,the e_MBMS technology proposed by the 3GPP organization has been widespread concern and applications. But it can cause serious inter- cell interference problems when multiple MBSFN district with adjacent or overlapping transmission of different business,the affected cell system performance. An MBSFN inter- cell interference coordination algorithms has been proposed,through inter- cell adjacent or overlapping relationships,and then assign different time slots resources to adjacent or overlapping areas to solve the same frequency inter- cell interference. Simulation results show that the algorithm can solve the interference problem between MBSFN cells to ensure that the user quality of service,but also through the slot resources reuse to improve the system performance.
出处
《网络新媒体技术》
2015年第6期60-64,共5页
Network New Media Technology
