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Wireless LAN White Papers

Digital Automatic Gain Control Integrated on WLAN Platform

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wireless lan

Overview This paper presents a solution for DAGC (Digital Automatic Gain Control) in WLAN receivers compatible to IEEE 802.11a/g standard. Those standards define communication in 5/2.4 GHz band using Orthogonal Frequency Division Multiplexing OFDM modulation scheme. WLAN Transceiver that the author has used enables gain control over Low Noise Amplifier (LNA) and a Variable Gain Amplifier (VGA). The control over those signals is performed in the digital baseband processor using dedicated hardware block DAGC. DAGC in this process is used to automatically control the VGA and LNA in order to achieve better signal-to-noise ratio, decrease FER (Frame Error Rate) and hold the average power of the baseband signal close to the desired set point.

Further White Paper Details
Publisher	World Academy of Science, Engineering and Technology	File Format	PDF
Date Published	July 2008
Format	White Papers
Topics	Wireless LAN, Mobile - Wireless Communications

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