Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: The joint estimation of carrier frequency offset (CFO) and channel transfer function (CTF) for orthogonal frequency-division multiplexing (OFDM) systems with phase noise is discussed in this paper. A CFO estimation algorithm is developed by exploring the time-frequency structure of specially designed training symbols, and it provides a very accurate estimation of the CFO in the presence of both unknown frequency-selective fading and phase noise. Based on the estimated CFO, phase noise and frequency-selective fading are jointly estimated by employing the maximum  a posteriori  (MAP) criterion. Specifically, the fading channel is estimated in the form of the frequency-domain CTF. The estimation of the CTF eliminates the requirement of  a priori  knowledge of channel length, and it is simpler compared with the time-domain channel impulse response (CIR) estimation methods used in the literature. Theoretical analysis with the Cramer-Rao lor bound (CRLB) demonstrates that the proposed CFO and CTF estimation algorithms can achieve near-optimum performance.
['Jun Tao', 'Jingxian Wu', 'Chengshan Xiao']
I am writing a research paper on a idea Estimation of Channel Transfer Function and Carrier Frequency Offset for OFDM Systems With Phase Noise
[{"from": "human", "value": "I am writing a research paper on a idea Estimation of Channel Transfer Function and Carrier Frequency Offset for OFDM Systems With Phase Noise"}, {"from": "gpt", "value": "Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: The joint estimation of carrier frequency offset (CFO) and channel transfer function (CTF) for orthogonal frequency-division multiplexing (OFDM) systems with phase noise is discussed in this paper. A CFO estimation algorithm is developed by exploring the time-frequency structure of specially designed training symbols, and it provides a very accurate estimation of the CFO in the presence of both unknown frequency-selective fading and phase noise. Based on the estimated CFO, phase noise and frequency-selective fading are jointly estimated by employing the maximum  a posteriori  (MAP) criterion. Specifically, the fading channel is estimated in the form of the frequency-domain CTF. The estimation of the CTF eliminates the requirement of  a priori  knowledge of channel length, and it is simpler compared with the time-domain channel impulse response (CIR) estimation methods used in the literature. Theoretical analysis with the Cramer-Rao lor bound (CRLB) demonstrates that the proposed CFO and CTF estimation algorithms can achieve near-optimum performance."}]