Title :
A Synchronization Protocol for OFDM-based Asynchronous Next Generation Access Networks
Author_Institution :
Yonsei Univ., Seoul
Abstract :
To generate multiple orthogonal carriers in an OFDM (orthogonal frequency division multiplexing) symbol, an FFT (fast Fourier transform) and IFFT (inverse FFT) pair is utilized at the transmitter and the receiver, respectively. Thus, it may be difficult for an MN (mobile node) to reconstruct signals received from several BSs (base stations), when single FFT module is used. Moreover, when a GPS (global position system) is not supported, ICI (inter carrier interference) may occur over multi-cell environments. This paper introduces a synchronization protocol for OFDM-based asynchronous networks without using GPS. The network protocol is designed to perform the plug & access radio configuration for next generation networks.
Keywords :
OFDM modulation; fast Fourier transforms; mobile radio; radio access networks; OFDM-based asynchronous next generation access networks; base stations; fast Fourier transform; global position system; intercarrier interference; mobile node; multiple orthogonal carriers; orthogonal frequency division multiplexing symbol; synchronization protocol; Access protocols; Base stations; Fast Fourier transforms; Frequency synchronization; Global Positioning System; Interference; Next generation networking; OFDM; Plugs; Radio transmitters;
Conference_Titel :
Optical Internet and Next Generation Network, 2006. COIN-NGNCON 2006. The Joint International Conference on
Conference_Location :
Jeju
Print_ISBN :
978-89-955301-4-6
Electronic_ISBN :
978-89-955301-4-6
DOI :
10.1109/COINNGNCON.2006.4454682
