Burst synchronization for OFDM-based cellular systems with separate signaling channel

Author

Stantchev, Branimir ; Fettweis, Gerhard

Author_Institution

Dept. of Electr. Eng., Tech. Univ. Dresden, Germany

Volume

2

fYear

1998

fDate

18-21 May 1998

Firstpage

758

Abstract

A novel burst synchronization scheme suitable for a high rate OFDM/TDMA/TDD (pico)cellular system with a centralized dynamic slot allocation MAC protocol is presented. The physical layer may have an optional low-rate separate signaling channel (SSC) used in the standby mode and implemented on a subset of OFDM subcarriers. A one-shot feedforward synchronization concept for the OFDM-based active transmission mode is designed using the functionality of the SSC and a special periodical OFDM preamble. Joint symbol and frequency synchronization as well as channel estimation can be achieved simultaneously. The synchronizer features low complexity and low processing delay. Simulations verify its robust operation for indoor channel power delay profiles at 5 GHz

Keywords

OFDM modulation; access protocols; computational complexity; delays; indoor radio; picocellular radio; synchronisation; telecommunication signalling; time division multiple access; time division multiplexing; 5 GHz; OFDM-based active transmission mode; OFDM-based cellular systems; SSC; TDD; TDMA; burst synchronization; centralized dynamic slot allocation MAC protocol; channel estimation; complexity; functionality; indoor channel power delay profiles; joint symbol frequency synchronization; one-shot feedforward synchronization; physical layer; picocellular system; processing delay; separate signaling channel; signaling channel; standby mode; subcarriers; Broadcasting; Delay estimation; Downlink; Frequency synchronization; Media Access Protocol; Mobile communication; OFDM modulation; Physical layer; Robustness; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1998. VTC 98. 48th IEEE

Conference_Location

Ottawa, Ont.

ISSN

1090-3038

Print_ISBN

0-7803-4320-4

Type

conf

DOI

10.1109/VETEC.1998.683683

Filename

683683