Abstract
In this paper, we propose a subcarrier allocation method and a composite linear minimum mean square error (LMMSE) channel estimator to increase spectrum efficiency in orthogonal frequency division multiplexing (OFDM) transmit diversity. The pilot symbols for OFDM transmit (Alamouti) diversity are exclusively allocated in two OFDM symbols in different antennas, which causes serious degradation of spectrum efficiency. To reduce the number of pilot symbols, our subcarrier allocation method uses repetition-coded data symbols, and the proposed channel estimator maintains good bit error rate (BER) performance.
| Original language | English |
|---|---|
| Pages (from-to) | 209-221 |
| Number of pages | 13 |
| Journal | KSII Transactions on Internet and Information Systems |
| Volume | 2 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2008 Aug 1 |
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All Science Journal Classification (ASJC) codes
- Information Systems
- Computer Networks and Communications
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A composite LMMSE channel estimator for spectrum-efficient OFDM transmit diversity. / Seo, Jeong Wook; Jeon, Won Gi; Paik, Jong Ho; Jo, Minho; Kim, Dong Ku.
In: KSII Transactions on Internet and Information Systems, Vol. 2, No. 4, 01.08.2008, p. 209-221.Research output: Contribution to journal › Article
TY - JOUR
T1 - A composite LMMSE channel estimator for spectrum-efficient OFDM transmit diversity
AU - Seo, Jeong Wook
AU - Jeon, Won Gi
AU - Paik, Jong Ho
AU - Jo, Minho
AU - Kim, Dong Ku
PY - 2008/8/1
Y1 - 2008/8/1
N2 - In this paper, we propose a subcarrier allocation method and a composite linear minimum mean square error (LMMSE) channel estimator to increase spectrum efficiency in orthogonal frequency division multiplexing (OFDM) transmit diversity. The pilot symbols for OFDM transmit (Alamouti) diversity are exclusively allocated in two OFDM symbols in different antennas, which causes serious degradation of spectrum efficiency. To reduce the number of pilot symbols, our subcarrier allocation method uses repetition-coded data symbols, and the proposed channel estimator maintains good bit error rate (BER) performance.
AB - In this paper, we propose a subcarrier allocation method and a composite linear minimum mean square error (LMMSE) channel estimator to increase spectrum efficiency in orthogonal frequency division multiplexing (OFDM) transmit diversity. The pilot symbols for OFDM transmit (Alamouti) diversity are exclusively allocated in two OFDM symbols in different antennas, which causes serious degradation of spectrum efficiency. To reduce the number of pilot symbols, our subcarrier allocation method uses repetition-coded data symbols, and the proposed channel estimator maintains good bit error rate (BER) performance.
UR - http://www.scopus.com/inward/record.url?scp=67650261878&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67650261878&partnerID=8YFLogxK
U2 - 10.3837/tiis.2008.04.004
DO - 10.3837/tiis.2008.04.004
M3 - Article
AN - SCOPUS:67650261878
VL - 2
SP - 209
EP - 221
JO - KSII Transactions on Internet and Information Systems
JF - KSII Transactions on Internet and Information Systems
SN - 1976-7277
IS - 4
ER -