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Improved AGC method for B3G MIMO-OFDM system

Improved AGC method for B3G MIMO-OFDM system
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摘要 Automatic gain control（AGC） has an important role in multi-input multi-output-orthogonal frequency-division multiplexing （MIMO-FDM） 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. Automatic gain control（AGC） has an important role in multi-input multi-output-orthogonal frequency-division multiplexing （MIMO-FDM） 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.
作者 YANG Bing YU He TAO Xiao-feng
机构地区 Wireless Technique Innovation Institute
出处 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2007年第3期99-102,共4页 中国邮电高校学报（英文版）
关键词 AGC MIMO OFDM beyond 3G AGC, MIMO, OFDM, beyond 3G
分类号 TN929.5 [电子电信—通信与信息系统]
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The Journal of China Universities of Posts and Telecommunications
2007年 第3期

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