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NC-OSDM Transmission for ICI Cancelation in High Speed Mobile Systems

机译:高速移动系统中ICI取消的NC-OSDM传输

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Non-Contiguous Orthogonal Frequency Division Multiplexing (NC-OFDM) system is used in the wide-band communications, especially for the wide-band cognitive radio, e. g., IEEE 802.22. However, in the high speed mobile environment, NC-OFDM suffers from Inter-Carrier Interference (ICI). Due to the non-uniformed Doppler spread in the wide-band, it is not efficient to use the traditional ICI cancelation schemes. In this paper, the NC-OSDM transmission system is proposed for ICI cancelation under this circumstance. With the performance evaluation, NC-OSDM outperforms over the equivalent NC-OFDM 15dB in the power of ICI interference. Also, the mobile speed of the vehicles or aircrafts can be improved approximately about twice.
机译:非连续正交频分复用(NC-OFDM)系统用于宽带通信,特别是对于宽带认知无线电,E。 G.,IEEE 802.22。然而,在高速移动环境中,NC-OFDM遭受载波间干扰(ICI)。由于不均匀的多普勒在宽带中传播,使用传统的ICI取消方案是不有效的。在本文中,在这种情况下提出了NC-OSDM传输系统。通过性能评估,NC-OSDM在ICI干扰的功率中占等效NC-OFDM 15dB。而且,车辆或飞机的移动速度可以提高大约两次。

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