It is shown that the proposed scheme performs better or on par with other practical schemes and only suffers a slight performance degradation when compared with systems with perfect knowledge of the channel covariance. 3, MAY 2007 1155 Blind Channel Estimation for OFDM Systems via a Generalized Precoding Feifei Gao. This leads to low complexity and improved system efficiency. IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. knowledge of the channel covariance is made available at the downlink transmitter through direct estimation from the uplink received signal power. By using our site, you agree to our collection of information through the use of cookies. uses cookies to personalize content, tailor ads and improve the user experience. Unlike other MIMO precoding schemes, the proposed scheme does not require a feedback channel or pilot symbols, i.e. Blind Channel Estimation for OFDM Systems via a Generalized Precoding. MIMO, STBC, FDD, covariance precoding, semi-blind,įull Text: PDF (347.9KB)> Buy this ArticleĪ method for estimating channel covariance from the uplink received signal power for downlink transmit precoding in multiple-input multiple-output (MIMO) frequency division duplex (FDD) wireless systems is proposed. IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol. Semi-Blind Channel Covariance Estimation for MIMO Precoding In particular, we propose a first-order Z-domain precoding technique for the blind estimation of the relay-destination channel matrix, while an algorithm. This paper proposes two novel blind estimation methods of the. The innovation here is that blind channel estimation is developed for. As a crucial parameter of the USB waveform, the modulation index influences the power distribution and spectrum characteristics of the waveform. Precoding at the transmitter may be combined with adaptive processing at the. Unified S-Band (USB) waveforms are widely used in space missions. Or go to Pay Per View on menu list, if you are a nonmember of IEICE. The parameter analysis of satellite tracking, telemetry, and command signal is necessary for space situational awareness. Blind multichannel estimation is classically done considering one of two constraints on the channel coefficients: (i) a quadratic constraint (i.e. To mitigate this loss, we propose an algorithm for blind. In this paper, we propose a nonredundant precoding scheme, which allows the receiver to. For Full-Text PDF, please login, if you are a member of IEICE, precoding, reciprocity imperfections can result in substantial reduction of the array gain. spread, we propose an algorithm for the blind estimation of.
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