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Security-Oriented Trellis Code Design for Spatial Modulation
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DOI：10.1109/TWC.2020.3037146.png)
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摘要
En 中文
To achieve physical layer security (PLS) with a flexible implementation, a novel design named security-oriented trellis coded spatial-modulation (SO-TCSM) is proposed in this article, where the transmitter does not know the channel state information (CSI) of wiretapping channels and relies on the legitimate CSI to vary the mapping patterns for the antenna information and the radiated information, aiming at the optimisation of free Euclidean distances between the resultant SO-TCSM symbols. Eavesdroppers cannot decode the confidential information delivered in the legitimate link, as they do not know the legitimate CSI and, hence, have no basis to acquire the transmitter's mapping pattern of the moment. Moreover, the SO-TCSM symbols are then compensated to maximise their Euclidean distances, which further improves the legitimate receiver's decoding performance while enhancing the PLS. However, the compensation results in high transmit power when the legitimate channels are in deep fades. To boost the energy efficiency, a constraint is set to limit the transmit power. Under this constraint, the SO-TCSM performance is investigated in terms of bit error rate and transmit power consumption. The outcome of these investigations substantiates that, compared to conventional TCSM designs, our SO-TCSM achieves better performance in the legitimate link with lower decoding complexity.
Keyword:
Receivers
Convolutional codes
Wireless communication
Modulation
Indexes
Euclidean distance
Channel models
Physical layer security (PLS)
spatial modulation (SM)
trellis coded modulation (TCM)
trellis coded spatial-modulation (TCSM)
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期刊
IF:
10.7
论文数:
1.3W
被引数:
5.3W
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