naa a22 4500 510794157 CHVBK 20180411083330.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11277-012-0717-0 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0717-0 Preamble and Pilot Design with Computationally Efficient Synchronization and Cell Search Algorithms in Cellular OFDM Systems [Elektronische Daten] [Hyun Yang, Won-Yong Shin] A computationally efficient initial synchronization technique is introduced in cellular orthogonal frequency division multiplexing downlink systems, which includes symbol timing estimation, frequency offset estimation, frame synchronization, and cell search. Novel preamble and pilot structures are proposed and a simple three-step synchronization scheme is developed based on a variety of practical conditions such as low computational complexity, time-varying frequency selective fading, limited preamble length, low peak-to-average-power ratio, and noncoherent synchronization with no channel estimation. The proposed three-step synchronization is sequentially described as (1) joint timing and frequency synchronization, (2) frame synchronization and preamble pattern identification (ID), and (3) pilot group ID. Simulation results show that the proposed technique nicely works even at low signal-to-interference-and-noise ratio regions. Springer Science+Business Media, LLC., 2012 Cell search nationallicence Cellular nationallicence Frequency offset nationallicence Orthogonal frequency division multiplexing nationallicence Pilot nationallicence Preamble nationallicence Symbol timing nationallicence Synchronization nationallicence Yang Hyun Department of Electrical Engineering, Stanford University, 94305, Stanford, CA, USA aut Shin Won-Yong Division of Mobile Systems Engineering, College of International Studies, Dankook University, 448-701, Yongin, Republic of Korea aut Wireless Personal Communications Springer US; http://www.springer-ny.com 70/2(2013-05-01), 731-742 0929-6212 70:2<731 2013 70 11277 https://doi.org/10.1007/s11277-012-0717-0 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0717-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yang Hyun Department of Electrical Engineering, Stanford University, 94305, Stanford, CA, USA aut NATIONALLICENCE 700 1- Shin Won-Yong Division of Mobile Systems Engineering, College of International Studies, Dankook University, 448-701, Yongin, Republic of Korea aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 70/2(2013-05-01), 731-742 0929-6212 70:2<731 2013 70 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer