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- Title
Channel Parameters Estimation Algorithm Based on the Characteristic Function under Impulse Noise Environment.
- Authors
Zhijiang XU; Kang WANG; Limin MENG
- Abstract
Under communication environments, such as wireless sensor networks, the noise observed usually exhibits impulsive as well as Gaussian characteristics. In the initialization of channel iterative decoder, such as low density parity check codes, it is required in advance to estimate the channel parameters to obtain the prior information from the received signals. In this paper, a blind channel parameters estimator under impulsive noise environment is proposed, which is based on the empirical characteristic function in MPSK/MQAM higher-order modulation system. Simulation results show that for various MPSK/MQAM modulations, the estimator can obtain a more accurate unbiased estimation even though we do not know which kind of higher-order modulation is used.
- Subjects
PARAMETER estimation; BURST noise; CHARACTERISTIC functions; WIRELESS sensor networks; BLIND channel identification (Telecommunications); SIMULATION methods &; models; ELECTRONIC modulation
- Publication
Radioengineering, 2013, Vol 22, Issue 4, p1034
- ISSN
1210-2512
- Publication type
Article