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Channel estimation is critical to receiver performance in the long term evolution (LTE) system. Reference signals are interspersed with data signals among the subcarriers to aid channel estimation. Linear minimum mean square error (LMMSE) channel estimation is an efficient approach to estimate the knowledge of channel with high complexity. LMMSE based on singular value decomposition and partitioning...
LTE is a step toward the 4th generation (4G) of radio technologies. OFDM is used in LTE system for the downlink to meet the LTE requirement for spectrum flexibility and enable cost-efficient solutions for very wide carriers with high peak rates. But OFDM systems is very sensitive to carrier frequency offset, and carrier frequency offset with even a small fraction of subcarrier spacing will degrade...
OFDM systems are very sensitive to frequency offset. This frequency offset results in inter-carrier interference (ICI) and, as a result, the performance of the OFDM system degrades drastically. In this paper, a blind adaptive method for joint frequency offset and channel estimation is proposed to reduce ICI effects and estimate frequency offset and channel. Adaptive technique is used to suppress these...
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