通信学报2026，Vol.47Issue(3)：30-41,12.DOI:10.11959/j.issn.1000-436x.2026052
用于提升信道容量的新型MSFCSK-Chirp调制方式
New MSFCSK-Chirp modulation scheme to improve transmission efficiency
摘要
Abstract
Chirp modulation,due to its unique linear frequency modulation method,has become a key technology ad-opted by the physical layer of low-power wide-area network(LPWAN).Chirp modulation has a low transmission rate and poor performance in multi-path channels and band interference.To address these issues,a new MSFCSK-Chirp modulation scheme was proposed to improve transmission efficiency.This scheme utilized the multi-slope,multi-band and multi-cyclic shift of Chirp signals to achieve orthogonality among various MSFCSK-Chirp signals.The orthogonal-ity conditions for MSSK-Chirp,MFSK-Chirp and MCSK-Chirp were derived to demonstrate the feasibility of MSFCSK-Chirp.The spectral efficiency of MSFCSK-Chirp was analyzed,proving that it can effectively enhance channel capacity.With spreading factors ranging from 6 to 12,the data transmission rate increases by 16.7%to 33.3%compared to MCSK-Chirp,MFSK-Chirp,and MFCSK-Chirp,while maintaining a lower peak-to-average power ratio(PAPR)than PSK-Chirp.Simulation results further indicate that MSFCSK-Chirp signals exhibit superior multipath resistance compared to MCSK-Chirp signals and better interference resistance than MFSK-Chirp signals.The proposed MSFCSK-Chirp scheme represents a promising alternative for high-transmission data IoT applications in complex channels.关键词
Chirp调制/多径信道/频带干扰/频谱效率Key words
Chirp modulation/multipath channel/band interference/spectral efficiency分类
信息技术与安全科学引用本文复制引用
修梦雷,窦高奇,柳春恺..用于提升信道容量的新型MSFCSK-Chirp调制方式[J].通信学报,2026,47(3):30-41,12.基金项目
国家自然科学基金资助项目(No.61871473) （No.61871473）
海军工程大学自主研发计划基金资助项目(No.2023503090) The National Natural Science Foundation of China(No.61871473),Naval Engineering University's Indepen-dent Research and Development Program Project(No.2023503090) （No.2023503090）
