Doppler estimation for OFDM based Aeronautical Data communication

J. Haque, M. C. Ertürk, H. Arslan
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引用次数: 4

Abstract

The frequency spectrum is deemed to be a valuable estate. Mobile users specifically the high-speed platforms are dependent on connectivity from satellite systems. Orthogonal frequency division multiplexing (OFDM) in combination with dense encoding, offers a robust communication and spectrum compression. OFDM is sensitive to frequency shift. This results in intercarrier interference (ICI) and degrades bandwidth efficiency. High mobility platform, such as train and aircraft offer a challenging environment for increasing the spectral efficiency of the physical layer. This paper discusses the potential development of an Aeronautical Data Network (ADN) and its channel issues in particularly the high mobility and its effects of using an OFDM communication structure. OFDM ICI and frequency shift caused by the high mobility of the platform is investigated and potential methods are proposed.
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基于OFDM的航空数据通信多普勒估计
频谱被认为是宝贵的财产。移动用户,特别是高速平台,依赖于卫星系统的连接。正交频分复用(OFDM)与密集编码相结合,提供了可靠的通信和频谱压缩。OFDM对频移很敏感。这将导致载波间干扰(ICI)并降低带宽效率。高移动性平台,如火车和飞机,为提高物理层的频谱效率提供了具有挑战性的环境。本文讨论了航空数据网络(ADN)的潜在发展及其信道问题,特别是高移动性及其使用OFDM通信结构的影响。研究了OFDM平台高移动性引起的ICI和频移问题,并提出了可能的解决方法。
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