Abstract
A lot of conventional algorithms have tried to cancel the residual frame synchronization error (RFSE), which causes the performance degradation of channel estimation when using interpolation between pilot sub-carriers in comb-type pilot-aided OFDM systems. Among them, a tracking method has been attractive to provide good performance by eliminating the effects of RFSE. However, it requires high computational complexity because of its compensation process including many complex multiplications. In this paper, we propose a new method which significantly reduces computational costs by adjusting the starting point of FFT window in order to compensate for the RFSE. For the performance verification, we apply the proposed method to the IEEE 802.16e mobile WiMAX system and estimate its computational power compared to the tracking method. Simulation and implementation results show that the proposed algorithm has the performance similar to the tracking method and is very efficient for low power implementation in comb-type pilot-aided OFDM systems because it consumes only 40.5% of the tracking method's power1.
| Original language | English |
|---|---|
| Article number | 5373737 |
| Pages (from-to) | 1819-1824 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Consumer Electronics |
| Volume | 55 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2009 Nov 1 |
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All Science Journal Classification (ASJC) codes
- Media Technology
- Electrical and Electronic Engineering
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Cost-effective residual frame synchronization error cancellation for comb-type pilot-aided OFDM systems. / Lee, Seongjoo; Kim, Jaedeok; Jung, Yunho; Kim, Jaeseok.
In: IEEE Transactions on Consumer Electronics, Vol. 55, No. 4, 5373737, 01.11.2009, p. 1819-1824.Research output: Contribution to journal › Article
TY - JOUR
T1 - Cost-effective residual frame synchronization error cancellation for comb-type pilot-aided OFDM systems
AU - Lee, Seongjoo
AU - Kim, Jaedeok
AU - Jung, Yunho
AU - Kim, Jaeseok
PY - 2009/11/1
Y1 - 2009/11/1
N2 - A lot of conventional algorithms have tried to cancel the residual frame synchronization error (RFSE), which causes the performance degradation of channel estimation when using interpolation between pilot sub-carriers in comb-type pilot-aided OFDM systems. Among them, a tracking method has been attractive to provide good performance by eliminating the effects of RFSE. However, it requires high computational complexity because of its compensation process including many complex multiplications. In this paper, we propose a new method which significantly reduces computational costs by adjusting the starting point of FFT window in order to compensate for the RFSE. For the performance verification, we apply the proposed method to the IEEE 802.16e mobile WiMAX system and estimate its computational power compared to the tracking method. Simulation and implementation results show that the proposed algorithm has the performance similar to the tracking method and is very efficient for low power implementation in comb-type pilot-aided OFDM systems because it consumes only 40.5% of the tracking method's power1.
AB - A lot of conventional algorithms have tried to cancel the residual frame synchronization error (RFSE), which causes the performance degradation of channel estimation when using interpolation between pilot sub-carriers in comb-type pilot-aided OFDM systems. Among them, a tracking method has been attractive to provide good performance by eliminating the effects of RFSE. However, it requires high computational complexity because of its compensation process including many complex multiplications. In this paper, we propose a new method which significantly reduces computational costs by adjusting the starting point of FFT window in order to compensate for the RFSE. For the performance verification, we apply the proposed method to the IEEE 802.16e mobile WiMAX system and estimate its computational power compared to the tracking method. Simulation and implementation results show that the proposed algorithm has the performance similar to the tracking method and is very efficient for low power implementation in comb-type pilot-aided OFDM systems because it consumes only 40.5% of the tracking method's power1.
UR - http://www.scopus.com/inward/record.url?scp=75449120486&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=75449120486&partnerID=8YFLogxK
U2 - 10.1109/TCE.2009.5373737
DO - 10.1109/TCE.2009.5373737
M3 - Article
AN - SCOPUS:75449120486
VL - 55
SP - 1819
EP - 1824
JO - IEEE Transactions on Consumer Electronics
JF - IEEE Transactions on Consumer Electronics
SN - 0098-3063
IS - 4
M1 - 5373737
ER -