LTE自组网的干扰协调研究

发布时间：2018-03-12 06:39

本文选题：小区间干扰协调　切入点：相邻小区列表　出处：《华中科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：对有兴趣减少资本输出和业务费用（OPEX）的运营商来说，自组织网络（SON）是非常重要的。关于自配置与自优化机制的介绍促使着我们研究自组织网络。自组织网络（SON）因其减少了成本和时间消耗，成为了长期演进网络系统（LTE）中实现无线电自动传输的关键因素。研究者展示了LTE系统中相邻小区列表自动配置的一种算法，并展示了如何不断更新系统。然而，传输技术依然被网络干扰所影响。这限制了信道容量（由信噪比所确定）的最大使用率。本项目将着眼于减轻干扰，描述一个叫做“小区间干扰协调”的有前途的消噪技术的近期发展。在现实中，，由于允许若干用户低数据率同时传输，OFDMA被E-UTRAN下行链路所选择。然而，传输过程仍被小区间干扰影响。在本文中，研究者使用ICIC技术来处理这个干扰。此外，仿真结果表明这个算法减少了相邻小区之间的干扰，从而增加了吞吐率并减少了块误码率。
[Abstract]:For operators interested in reducing capital exports and operating costs. The introduction of self-configuration and self-optimization mechanisms has prompted us to study ad hoc networks. It has become a key factor in the implementation of automatic radio transmission in long term evolving network systems. Researchers have demonstrated an algorithm for automatic configuration of adjacent cell lists in LTE systems and how to update the system continuously. Transmission technology is still affected by network interference. This limits the maximum utilization of channel capacity (determined by signal-to-noise ratio). This paper describes the recent development of a promising denoising technique called inter-cell interference coordination. In reality, OFDMA is selected by E-UTRAN downlink because it allows several users to transmit simultaneously at low data rate. However, the transmission process is still affected by inter-cell interference. In this paper, the ICIC technique is used to deal with this interference. The simulation results show that the proposed algorithm reduces the interference between adjacent cells, thus increasing the throughput and reducing the bit error rate (BER).
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.5

【相似文献】