Satoshi Nagata Motohiro Tanno Yoshihisa Kishiyama Kenichi Higuchi Mamoru Sawahashi Cell Search Time Comparison Using Hierarchical and Non-hierarchical Synchronization Channels in OFDM Based Evolved UTRA Downlink. 1608-1618 2009 92-B IEICE Transactions 5 http://search.ieice.org/bin/summary.php?id=e92-b_5_1608&category=B&year=2009&lang=E&abst= db/journals/ieicet/ieicet92b.html#NagataTKHS09