A Novel Weighted LLR Algorithm for Non-Coherent OFDM-MFSK System in Ionospheric Scatter Channel

• Published in: IEEE communications letters Vol. 26; no. 6; pp. 1383 - 1387
• Main Authors: Ding, Jian, Niu, Xiaoming, Hao, Shuji, Li, Qingliang, Ren, Guangliang
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.06.2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Bit error rate; Coherent scattering; Decoding; Fading channels; Frequency modulation; Frequency shift keying; Ionospheric scatter channel; Laboratories; Likelihood ratio; LLR weighted; Measurement; non-coherent detection; OFDM; OFDM-MFSK; Orthogonal Frequency Division Multiplexing; Scattering; Selective fading; Signal to noise ratio

A novel weighted log likelihood ratio (LLR) algorithm is proposed for the non-coherent orthogonal frequency division multiplexing with <inline-formula> <tex-math notation="LaTeX">{M} </tex-math></inline-formula>-ary frequency shift keying (OFDM-MFSK) system in an io...