Channel estimation scheme for 3.9G wireless communication systems using RLS algorithm
Rana, Md. Masud and Kouzani, Abbas Z. 2010, Channel estimation scheme for 3.9G wireless communication systems using RLS algorithm, in IMS 2010 : Proceedings of the 6th International conference on Advanced Information Management and Service, IEEE, Piscataway, N.J., pp. 494-497.
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Main challenges for a terminal implementation are efficient realization of the receiver, especially for channel estimation (CE) and equalization. In this paper, training based recursive least square (RLS) channel estimator technique is presented for a long term evolution (LTE) single carrier-frequency division multiple access (SC-FDMA) wireless communication system. This CE scheme uses adaptive RLS estimator which is able to update parameters of the estimator continuously, so that knowledge of channel and noise statistics are not required. Simulation results show that the RLS CE scheme with 500 Hz Doppler frequency has 3 dB better performances compared with 1.5 kHz Doppler frequency.
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