Improved AGC method for B3G MIMO–OFDM system

doi:1005-8885 (2007) 03-0099-04

Acta Metallurgica Sinica(English letters) ›› 2007, Vol. 14 ›› Issue (3): 99-102.doi: 1005-8885 (2007) 03-0099-04

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Improved AGC method for B3G MIMO–OFDM system

YANG Bing; YU He; TAO Xiao-feng

Wireless Technique Innovation Institute, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2006-11-28 Revised:1900-01-01 Online:2007-09-30

Abstract

Abstract:

Automatic gain control (AGC) has an important role in multi-input multi-output–orthogonal frequency-division multiplexing (MIMO–OFDM) system, especially, when receiving antennas are distributed. In recent years, much work has been done on efficiency and simplification of AGC, but few of them are aiming at multiple antennas. This article, on the assumption of ideal AGC for single receiving antenna, analyzes feasible AGC methods for MIMO system from a new aspect, then brings forward three applicable AGC methods: separate automatic gain control, joint automatic gain control, and partly-joint automatic gain control (PJ-AGC). After simulation, when parameters are properly set, PJ-AGC has the best performance and can be applied to B3G MIMO–OFDM system.

Key words:

AGC; MIMO; OFDM; beyond 3G

CLC Number:

TN929.5

YANG Bing; YU He; TAO Xiao-feng. Improved AGC method for B3G MIMO–OFDM system[J]. Acta Metallurgica Sinica(English letters), 2007, 14(3): 99-102.

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Improved AGC method for B3G MIMO–OFDM system

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