异构云无线接入网中不需要CSI的基于协作的干扰缓解

Areen Atrouz, M. Shurman, A. Alma'aitah
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引用次数: 0

摘要

为了适应移动电话用户数量的不断增长和业务模式的变化,研究人员开发了一种异构云无线接入网(HCRAN),该网络由面向次要用户(小蜂窝用户sue)的小远程无线头(S-RRH)和面向主要用户(多个宏蜂窝用户mue)的宏远程无线头(S-RRH)组成。然而,H-CRAN层可能相互重叠。研究人员通过BBU组的中央协同处理,减少了rrh之间的内部干扰。通过提出一种双向协作算法,提出了一种减少微蜂窝网络和小蜂窝网络之间干扰的框架,解决了小RRH细胞(S-RRHs)和RRH宏细胞(RRH宏)之间的层干扰问题。但是他们假设通道状态信息(CSI)是可用的。这种假设在无线通信环境中是没有意义的,因为可能会有特定范围的中断,从而导致设备无法获取或延迟信息。这项研究也仅限于固定用户或步兵受试者。他们没有预测高速移动的人的运动。在本文中,我们将使用跳频(FH)正交频分复用辅助差分混沌移位键控(OFDM-DCSK)调制来克服不准确或未知的CSI问题,除了能够预测在小区之间移动的用户的移动,并在用户所在的小区内提供服务。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cooperation-based Interference Mitigation in Heterogeneous Cloud Radio Access Networks without Requiring CSI
Researchers have developed the development of a Heterogeneous Cloud Radio Access Network (HCRAN) consists of a Small Remote Radio Head (S-RRH) for the secondary users (Small Cell Users SUEs) and macro RRH for the primary users (multiple macrocell users MUEs), to meet the continuous increase in the number of mobile phone users and the change in traffic patterns. However, H-CRAN layers may overlap each other. Researches were able to reduce internal interference between RRHs through central collaborative processing in the BBU group. Layer interference between small RRHs cells (S-RRHs) and RRH Macrocell (RRH macros) was resolved by proposing a framework to reduce interference between Microcell networks and small cellular networks by suggesting a two-way collaborative algorithm. But they assumed that the channel status information (CSI) was available. This assumption makes no sense in the wireless communication environment, due to the possible interruption of specific ranges, which results in devices not obtaining or delaying the information. The study was also limited to fixed users or infantry subjects. They did not predict the movement of people moving at high speeds. In this paper, we will use the frequency hopping (FH) orthogonal frequency division multiplexing-aided differential chaos shift keying (OFDM-DCSK) modulation to overcome an inaccurate or unknown CSI problem, In addition to the ability to predict the movement of users who move between cells, and provide services within the cell in which the user is located.
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