论文标题

LTE高级网络,概念和文献调查

Radio Resource Management for eICIC, CoMP, Relaying and Back-Hauls Techniques in LTE-Advanced Networks, Concepts and a Literature Survey

论文作者

Sirhan, Najem N, Martinez-Ramon, Manel

论文摘要

细胞中的频率再利用是LTE最大化光谱效率的策略之一。但是,它导致细胞之间的干扰,尤其是在细胞边缘,在细胞边缘上,将细胞边缘用户安排在由相邻单元传输的资源块上的概率很高;因此,干扰很高。为了减轻细胞间干扰,第三代合作伙伴项目3GPP标准是LTE网络的标准,随后,提出了增强的lte增强异质网络部署的增强型间间干扰协调。 3GPP提出的另一种针对LTE高级网络提出的技术,该技术可以减少间隙间干扰并改善细胞平均水平和细胞边缘用户吞吐量是协调的多点传输和接收技术,在该技术中,它可以增加细胞平均水平和细胞边缘用户吞吐量,以通过升级和下链路链路链接和下降链接通过计划和数据处理多个细胞,并在多个细胞中进行链接传输。 3GPP建议在困难条件下可以改善LTE网络覆盖率的另一种技术是部署继电器节点和后效。在本文中,我们调查了与LTE-Advanced一起使用的这些技术的无线电资源管理。我们首先解释这些技术的概念。然后,通过总结文献中针对这些技术提出的无线电资源管理方法。最后,我们在上一节中提供了一些结论性的评论。

Frequency reuse in cells is one of the strategies that LTE uses to maximize the spectrum efficiency. However, it leads to an interference among the cells, especially at the cell edges where the probability for a cell-edge user to be scheduled on a resource block that is being transmitted by the neighbouring cell is high; consequently, the interference is high. In-order to mitigate Inter-Cell Interference, Inter-Cell Interference Coordination was proposed by the Third Generation Partnership Project 3GPP standards for the LTE network, and later on, the enhanced Inter-Cell Interference Coordination was proposed for the LTE-Advanced Heterogeneous Network deployments. Another technique that was proposed by the 3GPP for the LTE-Advanced network that can reduce the Inter-Cell Interference and improve the cell-average and cell-edge user throughput is the Coordinated Multi-Point transmission and reception technique, in which it can increase the cell-average and cell-edge user throughput in both the uplink and downlink transmission by joint scheduling and data processing in multiple cells. Another technique that was proposed by the 3GPP for the LTE-Advanced network that can improve the LTE network coverage in difficult conditions is to deploy Relay Nodes and Back-Hauls. In this paper, we survey the Radio Resource Management of these techniques that are used with LTE-Advanced. We start by explaining the concepts of these techniques. Then, by summarizing the radio resource management approaches that were proposed in the literature for these techniques. And finally, we provide some concluding remarks in the last section.

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