广义正交码索引调制系统的性能分析

doi:10.11959/j.issn.1000-0801.2022166

Telecommunications Science ›› 2022, Vol. 38 ›› Issue (8): 120-128.doi: 10.11959/j.issn.1000-0801.2022166

• Research and Development • Previous Articles Next Articles

Performance analysis of generalized orthogonal code index modulation system

Lina BIAN¹, Huizhen FENG¹, Xiaoping JIN¹, Weizhong LOU², Chongxiao QU²

¹ Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, College of Information Engineering, China Jiliang University, Hangzhou 310018, China
² The 52nd Research Institute of China Electronics Technology Group Corporation, Hangzhou 310018, China

Revised:2022-07-14 Online:2022-08-20 Published:2022-08-01
Supported by:
The Natural Science Foundation of Zhejiang Province(LY17F010012);The Research Funding Project of Zhejiang Provincial Department of Education(Y201840047);The National College Student Innovation and Entrepreneurship Training Program Project(202110356016);Future Network Scientific Research Fund Project(FNSRFP-2021-YB-11)

Abstract

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.

Key words: generalized orthogonal code index modulation, code index modulation, average pairwise error probabil-ity, transmission rate

CLC Number:

TN929

Lina BIAN, Huizhen FENG, Xiaoping JIN, Weizhong LOU, Chongxiao QU. Performance analysis of generalized orthogonal code index modulation system[J]. Telecommunications Science, 2022, 38(8): 120-128.

Figures/Tables 7

比特	激活个数(K=1)	激活个数(K=2)	激活个数(K=3)
{0,0}	${c_{i_{1}}}$	${c_{i_{1}}, c_{i_{2}}}$	${c_{i_{1}}, c_{i_{2}}, c_{i_{3}}}$
{0,1}	${c_{i_{2}}}$	${c_{i_{1}}, c_{i_{3}}}$	${c_{i_{1}}, c_{i_{2}}, c_{i_{4}}}$
{1,0}	${c_{i_{3}}}$	${c_{i_{1}}, c_{i_{4}}}$	${c_{i_{1}}, c_{i_{3}}, c_{i_{4}}}$
{1,1}	${c_{i_{4}}}$	${c_{i_{2}}, c_{i_{3}}}$	${c_{i_{2}}, c_{i_{3}}, c_{i_{4}}}$

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