Title :
BER performance of AGC in high-speed portable Internet system
Author :
Lee, Yong Su ; Park, Youn Ok
Author_Institution :
Korea Electron. & Telecommun. Res. Inst., Daejeon, South Korea
Abstract :
The paper proposes a practical method for AGC (automatic gain control) in an HPI (high-speed portable Internet) system. Downlink packets in this system consist of preamble symbols for AGC, AFC (automatic frequency control) and other purposes, and data symbols for traffic transmission. We compare the theoretical BER performance with the simulation one and produce an optimum parameter for AGC in this system. The proposed AGC method utilizes the preamble and requires a small amount of hardware. The validity of the proposed method is verified by computer simulation and real implementation.
Keywords :
Internet; OFDM modulation; automatic gain control; error statistics; frequency division multiple access; mobile computing; mobile radio; packet radio networks; telecommunication traffic; transceivers; 2.3 GHz; AFC; AGC; BER performance; FDMA; OFDM; OFDMA; automatic frequency control; automatic gain control; data symbols; downlink packets; high-speed portable Internet system; mobile environment; orthogonal frequency division multiple access; preamble symbols; traffic transmission; transceiver system; wireless services; Automatic frequency control; Bit error rate; Computational modeling; Computer simulation; Control systems; Downlink; Gain control; Hardware; Internet; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1405004
