Non-orthogonal-code Index Modulation

Lijia GE; Zhilin JIANG; Sheng FENG; Qin YANG

doi:10.11999/JEIT180023

Volume 40 Issue 10

Sep. 2018

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Article Navigation > Journal of Electronics & Information Technology > 2018 > 40(10): 2331-2336

Lijia GE, Zhilin JIANG, Sheng FENG, Qin YANG. Non-orthogonal-code Index Modulation[J]. Journal of Electronics & Information Technology, 2018, 40(10): 2331-2336. doi: 10.11999/JEIT180023

Citation:

Lijia GE, Zhilin JIANG, Sheng FENG, Qin YANG. Non-orthogonal-code Index Modulation[J]. Journal of Electronics & Information Technology, 2018, 40(10): 2331-2336. doi: 10.11999/JEIT180023

Lijia GE, Zhilin JIANG, Sheng FENG, Qin YANG. Non-orthogonal-code Index Modulation[J]. Journal of Electronics & Information Technology, 2018, 40(10): 2331-2336. doi: 10.11999/JEIT180023

Citation:

Lijia GE, Zhilin JIANG, Sheng FENG, Qin YANG. Non-orthogonal-code Index Modulation[J]. Journal of Electronics & Information Technology, 2018, 40(10): 2331-2336. doi: 10.11999/JEIT180023

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Non-orthogonal-code Index Modulation

doi: 10.11999/JEIT180023

1.
Chongqing Key Laboratory of Mobile Communication Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
2.
Chongqing Key Laboratory of Emergency Communication, Communication NCO Academy of Army Engineering University, Chongqing 400035, China

Funds: The National Natural Science Foundation of China (61271251), The Social Cause and People’s Livelihood Protection Science and Technology Innovation Special Project of Chongqing (cstc2017shmsA40002)

Received Date: 2018-01-28
Rev Recd Date: 2018-06-05

Available Online: 2018-07-30

Publish Date: 2018-10-01

Abstract

Abstract

To deal with the problem that the bit error rate reduces obviously when the Code Index Modulation (CIM) is used to improve spectrum utilization, a novel Non-orthogonal-Code Index Modulation (N-CIM) is proposed. The bit stream of the transmitter is divided into mapping block of Pseudo Noise (PN) code and informational block of modulation, which are mapped into the index of the PN code and modulation symbol respectively. The real part and imaginary part of the modulation symbol are spread by selecting the identical activate PN code. Simulation and analysis results show that N-CIM outperforms CIM by about 2~3 dB in additive white Gaussian noise channel when the bit error rate is 10^–5, and N-CIM outperforms CIM by about 2 dB in Rayleigh fading channel when the bit error rate is 10^–2 at the same spectral efficiency.
- Direct Sequence Spread Spectrum (DSSS),
- Non-orthogonal,
- Code Index Modulation (CIM),
- Bit Error Rate (BER)

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References(15)

References

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