Publication: IEICE TRANSACTIONS on Communications Publication Date: 2018/02/01 Vol. E101-BNo. 2pp. 383-391 Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2016) Category: DOA Estimation Keyword: sparse L-shaped array, 2-D DOA estimation, noise-free CCM, automatic pairing,