摘要
随着4G网络的大规模商用,考虑到成本和室内覆盖问题,运营商采用家庭基站来完成室内4G网络的覆盖。但是家庭基站的大量随机部署,会造成家庭基站间覆盖区域重叠,导致出现同频干扰问题。为解决上述问题,提出了一种动态的频率资源分配策略来解决家庭基站间的干扰问题。通过Matlab仿真结果表明,该方案不仅能够很好的解决家庭基站间的干扰问题,而且能够大幅度提高频谱利用率,同时在小区吞吐量上也有明显的改善。
With the large-scale commercial of 4G network, femtocell has a very good development prospect. Taking into account cost and indoor coverage problems, operators use femtocell to complete the coverage indoor of 4G networks. Mass deployment of femtocell causes a lot of problems with the interference between femtocells. To solve these problems, a dynamic frequency resource allocation strategies is proposed. Matlab simulation results show that the scheme can solve interference problems between femtocells, while being able to greatly improve the spectrum utilization. Meanwhile, the cell throughput is also significantly improved.
出处
《自动化技术与应用》
2016年第8期67-70,79,共5页
Techniques of Automation and Applications
关键词
4G网络
家庭基站
频率资源分配
小区吞吐量
4G network
femtocell
frequency resource allocation
the cell throughput
