Abstract
In this paper, we propose a new efficient FFT algorithm for OFDM/DMT applications and present its pipeline implementation results. Since the proposed algorithm is based on the radix-4 butterfly unit, the processing rate can be twice as fast as that based on the radix-23 algorithm. Also, its implementation is more area-efficient than the implementation from conventional radix-4 algorithm due to reduced number of nontrivial multipliers like using the radix-23 algorithm. In order to compare the proposed algorithm with the conventional radix-4 algorithm, the 64-point MDC pipelined FFT processor based on the proposed algorithm was implemented. After the logic synthesis using 0.35μm CMOS technology, the logic gate count for the processor with the proposed algorithm is only about 70% of that for the processor with the conventional radix-4 algorithm. Since the proposed algorithm can achieve higher processing rate and better efficiency than the conventional algorithm, it is very suitable for the OFDM/DMT applications such as the WLAN, DAB/DVB, and ADSL/VDSL systems.
| Original language | English |
|---|---|
| Pages (from-to) | 14-20 |
| Number of pages | 7 |
| Journal | IEEE Transactions on Consumer Electronics |
| Volume | 49 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2003 Feb 1 |
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All Science Journal Classification (ASJC) codes
- Media Technology
- Electrical and Electronic Engineering
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New efficient FFT algorithm and pipeline implementation results for OFDM/DMT applications. / Jung, Yunho; Yoon, Hongil; Kim, Jaeseok.
In: IEEE Transactions on Consumer Electronics, Vol. 49, No. 1, 01.02.2003, p. 14-20.Research output: Contribution to journal › Article
TY - JOUR
T1 - New efficient FFT algorithm and pipeline implementation results for OFDM/DMT applications
AU - Jung, Yunho
AU - Yoon, Hongil
AU - Kim, Jaeseok
PY - 2003/2/1
Y1 - 2003/2/1
N2 - In this paper, we propose a new efficient FFT algorithm for OFDM/DMT applications and present its pipeline implementation results. Since the proposed algorithm is based on the radix-4 butterfly unit, the processing rate can be twice as fast as that based on the radix-23 algorithm. Also, its implementation is more area-efficient than the implementation from conventional radix-4 algorithm due to reduced number of nontrivial multipliers like using the radix-23 algorithm. In order to compare the proposed algorithm with the conventional radix-4 algorithm, the 64-point MDC pipelined FFT processor based on the proposed algorithm was implemented. After the logic synthesis using 0.35μm CMOS technology, the logic gate count for the processor with the proposed algorithm is only about 70% of that for the processor with the conventional radix-4 algorithm. Since the proposed algorithm can achieve higher processing rate and better efficiency than the conventional algorithm, it is very suitable for the OFDM/DMT applications such as the WLAN, DAB/DVB, and ADSL/VDSL systems.
AB - In this paper, we propose a new efficient FFT algorithm for OFDM/DMT applications and present its pipeline implementation results. Since the proposed algorithm is based on the radix-4 butterfly unit, the processing rate can be twice as fast as that based on the radix-23 algorithm. Also, its implementation is more area-efficient than the implementation from conventional radix-4 algorithm due to reduced number of nontrivial multipliers like using the radix-23 algorithm. In order to compare the proposed algorithm with the conventional radix-4 algorithm, the 64-point MDC pipelined FFT processor based on the proposed algorithm was implemented. After the logic synthesis using 0.35μm CMOS technology, the logic gate count for the processor with the proposed algorithm is only about 70% of that for the processor with the conventional radix-4 algorithm. Since the proposed algorithm can achieve higher processing rate and better efficiency than the conventional algorithm, it is very suitable for the OFDM/DMT applications such as the WLAN, DAB/DVB, and ADSL/VDSL systems.
UR - http://www.scopus.com/inward/record.url?scp=0038354698&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0038354698&partnerID=8YFLogxK
U2 - 10.1109/TCE.2003.1205450
DO - 10.1109/TCE.2003.1205450
M3 - Article
AN - SCOPUS:0038354698
VL - 49
SP - 14
EP - 20
JO - IEEE Transactions on Consumer Electronics
JF - IEEE Transactions on Consumer Electronics
SN - 0098-3063
IS - 1
ER -