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A time domain multiple-CFOs and CIRs estimation algorithm over wireless multimedia sensor networks |
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| Authors: | Jiang Jian Wei Jianming Li Baoqing Wang Yingguan Liu Haitao Qiu Yunzhou |
| Affiliation: | Jiang Jian Wei Jianming Li Baoqing Wang Yingguan Liu Haitao Qiu Yunzhou (Key Laboratory of Wireless Sensor Network & Communication,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,P.R.China) |
| Abstract: | Channel parameters estimation in an orthogonal frequency division multiple access(OFDMA)system for the receiver station is a multi-dimensional(MD)optimization problem,because every user node has a separate local oscillator and every transmitter to receiver link has individual carrier frequency offset (CFO)and channel impulse response(CIR)parameters .In order to reduce the computational complexity for MD optimization,a time domain CFOs and CIRs estimation algorithm over the OFDMA based wireless multimedia se... |
| Keywords: | wireless multimedia sensor networks (WMSN) orthogonal frequency division multiple access (OFDMA) multiple carrier frequency offsets (CFOs) multiple channel impulse responses (CIRs) minimum mean square error (MMSE) |
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