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Low Complexity Algorithms for Multi-Cell Joint Channel Estimation in TDD-CDMA Systems
Peng XUE Jae Hyun PARK Duk Kyung KIM
IEICE TRANSACTIONS on Communications
Publication Date: 2011/08/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
TDD-CDMA, midamble, multi-cell joint channel estimation, block-toeplitz, almost block-Toeplitz,
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In this letter, we propose two low complexity algorithms for least square (LS) and minimum mean square error (MMSE) based multi-cell joint channel estimation (MJCE). The algorithm for LS-MJCE achieves the same complexity and mean square error (MSE) performance as the previously proposed most efficient algorithm, while the algorithm for MMSE-MJCE is superior to the conventional ones, in terms of either complexity or MSE performance.