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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >Opportunistic Interference Alignment for Spectrum Sharing between Radar and Communication Systems
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Opportunistic Interference Alignment for Spectrum Sharing between Radar and Communication Systems

机译：雷达和通信系统之间的频谱共享的机会干扰对齐

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摘要

In this paper, we propose a novel opportunistic interference alignment technique for spectrum-shared radar and uplink cellular communication systems where both systems are equipped with multiple antennas. In the proposed OIA technique, the radar system sends its signal so that the radar signal is received into interference space at base stations (BSs) of the cellular system, while each uplink user (UE) generates its transmit beamforming vector so that communication signals are received within interference space at the radar receiver. Moreover, to achieve better sum-rate performance of the cellular communication system, the BS selects the UEs which results in sufficiently small interference to other cells for the uplink communication. With the proposed OIA technique, detection performance of the radar system is protected, while the communication system achieves satisfactory sum-rate performance. Through extensive computer simulations, we show that the performances of both radar and communication systems with the proposed technique significantly outperform a conventional null-space projection based spectrum sharing scheme.
机译：在本文中，我们提出了一种用于频谱共享雷达和上行链路蜂窝通信系统的新型机会干扰对准技术，其中两个系统都配备有多个天线。在所提出的OIA技术中，雷达系统将其信号发送，使得雷达信号被接收到蜂窝系统的基站（BSS）的干扰空间中，而每个上行链路用户（UE）产生其发送波束形成矢量，以便通信信号是在雷达接收器处收到干扰空间内。此外，为了实现蜂窝通信系统的更好的和速率性能，BS选择UE，这导致对上行链路通信的其他小区的干扰足够小。利用所提出的OIA技术，保护雷达系统的检测性能受到保护，而通信系统实现了令人满意的总和性能。通过广泛的计算机模拟，我们表明，具有所提出的技术的雷达和通信系统的性能显着优于基于传统的空空间投影的频谱共享方案。

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