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http://dx.doi.org/10.6109/jkiice.2011.15.8.1687

Implementation of Digital IF design for a OFDM based WLAN  

Park, Chan-Hoon ((주)코리아컴퓨터)
Shin, Dong-Woo (광운대학교 전파공학과)
Choi, Youn-Kyoung (광운대학교 전파공학과)
Yang, Hoon-Gee (광운대학교 전자융합공학과)
Yang, Sung-Hyun (광운대학교 전자공학과)
Park, Jong-Chul (전자부품연구원 패키징연구센터)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.15, no.8, 2011 , pp. 1687-1694 More about this Journal
Abstract
In this paper, we propose the design procedure of a digital IF system for the OFDM based WLAN system and examine its performances. Along with the decision procedure of ADC sample rate, NCO frequency and the required decimation ratio, we show the decimation ratio is accomplished through the use of a CIC filter and a MHBF. We also show that the amplitude distortion occurred in the decimation filters can effectively be compensated by a ISOP filter and an additional FIR filter, which leads to the reduction of the overall hardware complexity. Finally, we examine the BER performance of the proposed system and compare it with a theoretical one that excludes filter non-linearities.
Keywords
Digital IF; Software Define Ratio(SDR); Amplitude compensation; Amplitude distortion;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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