An Ultrahigh Order Code Index Modulation Method with Low Complexity

Fang LIU; Yongxin FENG

doi:10.11999/JEIT200318

Volume 43 Issue 7

Jul. 2021

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Fang LIU, Yongxin FENG. An Ultrahigh Order Code Index Modulation Method with Low Complexity[J]. Journal of Electronics & Information Technology, 2021, 43(7): 1922-1929. doi: 10.11999/JEIT200318

Citation:

Fang LIU, Yongxin FENG. An Ultrahigh Order Code Index Modulation Method with Low Complexity[J]. Journal of Electronics & Information Technology, 2021, 43(7): 1922-1929. doi: 10.11999/JEIT200318

Fang LIU, Yongxin FENG. An Ultrahigh Order Code Index Modulation Method with Low Complexity[J]. Journal of Electronics & Information Technology, 2021, 43(7): 1922-1929. doi: 10.11999/JEIT200318

Citation:

Fang LIU, Yongxin FENG. An Ultrahigh Order Code Index Modulation Method with Low Complexity[J]. Journal of Electronics & Information Technology, 2021, 43(7): 1922-1929. doi: 10.11999/JEIT200318

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An Ultrahigh Order Code Index Modulation Method with Low Complexity

doi: 10.11999/JEIT200318

Fang LIU^{1
,
,},
Yongxin FENG²

1.
School of Information Science and Engineering, Shenyang Ligong University, Shenyang 110159, China
2.
Graduate School, Shenyang Ligong University, Shenyang 110159, China

Funds: The National Natural Science Foundation of China (61501309, 61971291), The Natural Science Foundation of Liaoning Province (2020-MS-215)

Received Date: 2020-04-28
Rev Recd Date: 2020-12-09

Available Online: 2020-12-23

Publish Date: 2021-07-10

Abstract

Abstract

In order to solve the limitation of low information transmission rate in Direct Sequence Spread Spectrum (DSSS), some techniques such as multi-band spread spectrum and index modulation appear. Because the additional information in this series of technologies is mapped by pseudo code transformation, the larger the modulation order is, the greater the complexity will be, and when the complexity of the system is limited, the modulation order will not be improved. In order to overcome the limitation of high-order information transmission rate, an UltraHigh Order Code Index Modulation (UHO-CIM) method with low complexity is proposed. The multi code set index is carried out by two-dimensional information grouping, so as to reduce the number of channels, and then the cyclic shift index is carried out by three-dimensional information grouping, so as to improve greatly the transmission rate without increasing the channels. Moreover, the relationship between shift channel and non-shift channel is used to remove the environmental impact. This method can not only effectively transmit multi-dimensional information, but also reduce greatly the complexity compared with the existing methods, and has obvious advantages in comprehensive performance. In addition, the existing methods are difficult to achieve high-order and ultra-high-order information transmission, while the proposed method can achieve ultra-high-order information transmission with modulation order greater than 15, which provides reference technology for the efficient spread spectrum communication applications.
- Direct Sequence Spread Spectrum (DSSS),
- Index modulation,
- Ultrahigh order,
- Modulation order

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References(20)

References

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