Receiver Implementation for MIMO-OFDM with AMC and Precoding

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Title: Receiver Implementation for MIMO-OFDM with AMC and Precoding
Author: Ketonen, Johanna; Juntti, Markku; Cavallaro, Joseph R.
Type: Conference Paper
Publisher: IEEE
Citation: J. Ketonen, M. Juntti and J. R. Cavallaro,"Receiver Implementation for MIMO-OFDM with AMC and Precoding," in 43rd Asilomar Conference on Signals, Systems and Computers, 2009
Abstract: Receivers for horizontally encoded LTE based MIMO-OFDM systems are considered in this paper. Adaptive modulation and coding (AMC) is used as well as precoding. The linear minimum mean square error (LMMSE), successive interference cancellation (SIC) and K-best list sphere detectors (LSD) are compared. The receivers were designed and implemented for 2×2 and 4×4 antenna systems and meet the decoding rate requirement in LTE, i.e, 210 Mb/s in 2×2 and 405 Mb/s in 4×4 antenna systems. The results show that the performance of the receivers is similar in low SNR but the performance difference increases when a higher rank transmission is used. The K-best LSD has the highest performance and complexity. A simpler receiver could be used in the low SNRs to save power and a more complex receiver in the high SNRs when a higher goodput is needed.
Date Published: 2009-11-01

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