Performance analysis of generalized orthogonal code index modulation system

Lina BIAN; Huizhen FENG; Xiaoping JIN; Weizhong LOU; Chongxiao QU

doi:10.11959/j.issn.1000-0801.2022166

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Performance analysis of generalized orthogonal code index modulation system

Research and Development | 更新时间：2024-06-05

- Performance analysis of generalized orthogonal code index modulation system
- Telecommunications Science Vol. 38, Issue 8, Pages: 120-128(2022)
- 作者机构：
  
  1. 中国计量大学信息工程学院，浙江省电磁波信息技术与计量检测重点实验室，浙江杭州 310018
  2. 中国电子科技集团公司第五十二研究所，浙江杭州 310018
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2022166
  CLC： TN929
- Published Online：2022-08，
  
  Published：20 August 2022
- 稿件说明：
移动端阅览
Lina BIAN, Huizhen FENG, Xiaoping JIN, et al. Performance analysis of generalized orthogonal code index modulation system[J]. Telecommunications science, 2022, 38(8): 120-128.
DOI：

Lina BIAN, Huizhen FENG, Xiaoping JIN, et al. Performance analysis of generalized orthogonal code index modulation system[J]. Telecommunications science, 2022, 38(8): 120-128. DOI： 10.11959/j.issn.1000-0801.2022166.

摘要

摘要：为了提高码索引调制（code index modulation，CIM）系统的传输效率，提出了一种具有更低复杂度的单输入单输出（single input single output，SISO）的广义正交码索引调制（generalized orthogonal code index modulation，GQCIM）系统。CIM 系统使用扩频码和星座符号传输信息，但只能激活两个扩频码索引和一个调制符号。而 GQCIM 系统以一种新颖的方式克服了只激活一个调制符号的限制，同时充分利用了调制符号的正交性，增加扩频码索引以传输更多的额外信息位，提高了系统的传输效率。此外，分析了GQCIM系统的理论性能，推导了误码率性能的上界。通过蒙特卡罗仿真验证了GQCIM系统的性能，对比发现GQCIM系统的理论和仿真性能一致。而且在相同的传输效率下，结果显示GQCIM系统的性能优于同样具有正交性的调制系统，如广义码索引调制（generalized code index modulation，GCIM）系统、CIM系统、码索引调制-正交空间调制（code index modulation aided quadrature spatial modulation，CIM-QSM）系统、码索引调制-正交空间调制（code index modulation aided spatial modulation，CIM-SM）系统、脉冲索引调制（pulse index modulation，PIM）系统。

Abstract

In order to improve the transmission efficiency of the code index modulation (CIM) system

a generalized orthogonal code index modulation (GQCIM) system with lower complexity was proposed

which was a single input single output (SISO) system.CIM system used spreading codes and constellation symbols to transmit information

but only activated two spreading code indexes and one modulation symbol.GQCIM system overcame the limitation of only activating one modulation symbol at a time in a novel way

at the same time

made full use of the orthogonality of modulation symbols

increased the spreading code index to transmit more additional information bits

and improved the transmission efficiency of the system.In addition

the theoretical performance of GQCIM system was analyzed and derived the upper bound of bit error rate performance.Then the performance of GQCIM was verified by Monte Carlo simulation

and the theoretical and simulation performance of GQCIM system was found to be consistent.And under the same transmission efficiency

the results show that the performance of GQCIM system is better than the same orthogonal modulation system

such as generalized code index modulation (GCIM) system

CIM system

code index modulation aided quadrature spatial modulation (CIM-QSM) system

code index modulation aided spatial modulation (CIM-SM) system

pulse index modulation (PIM) system.

关键词

Keywords

references

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