Two EM-type channel estimation algorithms for OFDM with transmitter diversity.

We study channel estimation for orthogonal frequency-division multiplexing (OFDM) systems utilizing transmitter diversity and operating over multipath fading channels. Two expectation-maximization (EM)-type algorithms are introduced and compared with each other in terms of convergence rate. At each...

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-д хэвлэсэн:	IEEE Transactions on communications 51, 1 (2003).
Үндсэн зохиолч:	Yongzhe Xie
Формат:	Өгүүллэг
Хэл сонгох:	англи
Нөхцлүүд:	EM-type algorithms. OFDM link. Channel estimation. Convergence rate. Expectation-maximization algorithms. Iteration. Multipath channel delay profiles. Multipath fading channels. Orthogonal frequency-division multiplexing. Robust system performance. Significant-tap-catching estimator. Transmit-receive antenna pair. Transmitter diversity.