Abstract
In the fast time-varying channel, there exists interference among subchannels of the orthogonal frequency-division multiplexing (OFDM) system. The problem of inter-subchannel interference (ICI) also appears in the single-carrier (SC) block transmission with frequency-domain (FD) equalization. However, not all ICI reduction algorithms for the OFDM system can be directly applied in the SC block transmission. In this paper, we first consider a previous ICI self-reduction algorithm for the OFDM system. Though this algorithm can be applied in the SC block transmission, it extends the duration of each time-domain (TD) signal to add the diversity of FD symbols for ICI self-reduction. However, unlike the OFDM system, the SC block transmission can only use the block type pilot arrangements, and extending the original TD duration of signal may increase the relative time variance, and worsen the CR estimation the follows the ICI reduction. Based on the characteristics of SC block transmission, we propose an efficient ICI self-reduction algorithm. The proposed algorithm is also able to add the diversity of FD symbols to make the ICI self-reduced. Without extending the original duration of the TD signal, the algorithm does not affect the performance in the subsequent CR estimation. Similar to [6], when the variation of each path is linear with time within the block interval, we can show that the ICI can be completely removed. Our ICI self-reduced algorithm gives almost no additional complexity comparing with the typical SC block transmission with FD equalization. The simulation results show that the proposed algorithm attains better performance than the original ICI self-reduction algorithm that extends the signal duration in the high-mobility channel.
| Original language | English |
|---|---|
| Title of host publication | 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 |
| Pages | 1102-1107 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2013 Dec 1 |
| Event | 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 - London, United Kingdom Duration: 2013 Sep 8 → 2013 Sep 11 |
Publication series
| Name | IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC |
|---|
Other
| Other | 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 |
|---|---|
| Country | United Kingdom |
| City | London |
| Period | 13-09-08 → 13-09-11 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
Cite this
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An efficient algorithm of inter-subchannel interference self-reduction for the single-carrier block transmission. / Chang, Ming Xian; Chung, Ching Yu.
2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013. 2013. p. 1102-1107 6666303 (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - An efficient algorithm of inter-subchannel interference self-reduction for the single-carrier block transmission
AU - Chang, Ming Xian
AU - Chung, Ching Yu
PY - 2013/12/1
Y1 - 2013/12/1
N2 - In the fast time-varying channel, there exists interference among subchannels of the orthogonal frequency-division multiplexing (OFDM) system. The problem of inter-subchannel interference (ICI) also appears in the single-carrier (SC) block transmission with frequency-domain (FD) equalization. However, not all ICI reduction algorithms for the OFDM system can be directly applied in the SC block transmission. In this paper, we first consider a previous ICI self-reduction algorithm for the OFDM system. Though this algorithm can be applied in the SC block transmission, it extends the duration of each time-domain (TD) signal to add the diversity of FD symbols for ICI self-reduction. However, unlike the OFDM system, the SC block transmission can only use the block type pilot arrangements, and extending the original TD duration of signal may increase the relative time variance, and worsen the CR estimation the follows the ICI reduction. Based on the characteristics of SC block transmission, we propose an efficient ICI self-reduction algorithm. The proposed algorithm is also able to add the diversity of FD symbols to make the ICI self-reduced. Without extending the original duration of the TD signal, the algorithm does not affect the performance in the subsequent CR estimation. Similar to [6], when the variation of each path is linear with time within the block interval, we can show that the ICI can be completely removed. Our ICI self-reduced algorithm gives almost no additional complexity comparing with the typical SC block transmission with FD equalization. The simulation results show that the proposed algorithm attains better performance than the original ICI self-reduction algorithm that extends the signal duration in the high-mobility channel.
AB - In the fast time-varying channel, there exists interference among subchannels of the orthogonal frequency-division multiplexing (OFDM) system. The problem of inter-subchannel interference (ICI) also appears in the single-carrier (SC) block transmission with frequency-domain (FD) equalization. However, not all ICI reduction algorithms for the OFDM system can be directly applied in the SC block transmission. In this paper, we first consider a previous ICI self-reduction algorithm for the OFDM system. Though this algorithm can be applied in the SC block transmission, it extends the duration of each time-domain (TD) signal to add the diversity of FD symbols for ICI self-reduction. However, unlike the OFDM system, the SC block transmission can only use the block type pilot arrangements, and extending the original TD duration of signal may increase the relative time variance, and worsen the CR estimation the follows the ICI reduction. Based on the characteristics of SC block transmission, we propose an efficient ICI self-reduction algorithm. The proposed algorithm is also able to add the diversity of FD symbols to make the ICI self-reduced. Without extending the original duration of the TD signal, the algorithm does not affect the performance in the subsequent CR estimation. Similar to [6], when the variation of each path is linear with time within the block interval, we can show that the ICI can be completely removed. Our ICI self-reduced algorithm gives almost no additional complexity comparing with the typical SC block transmission with FD equalization. The simulation results show that the proposed algorithm attains better performance than the original ICI self-reduction algorithm that extends the signal duration in the high-mobility channel.
UR - http://www.scopus.com/inward/record.url?scp=84893278729&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84893278729&partnerID=8YFLogxK
U2 - 10.1109/PIMRC.2013.6666303
DO - 10.1109/PIMRC.2013.6666303
M3 - Conference contribution
AN - SCOPUS:84893278729
SN - 9781467362351
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 1102
EP - 1107
BT - 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
ER -