Name
Abstract | ||
|---|---|---|
In this paper, we propose pilot-assisted decision feedback channel estimation (PA-DFCE) for space-time coded transmit diversity (STTD) in orthogonal frequency division multiplexing (OFDM). Two transmit channels are simultaneously estimated by transmitting the STTD encoded pilot. To improve the tracking ability of the channel estimation against fast fading, decision feedback is also used in addition to pilot. For noise reduction and preventing the error propagation, windowing of the estimated channel impulse response in the time-delay domain is applied. The average bit error rate (BER) performance of OFDM with STTD is evaluated by computer simulation. It is found that the use of PA-DFCE can achieve a degradation in the required E-b/N-0 from ideal CE of as small as 0.6dB for an average BER = 10(-3) and requires about 2.4dB less E-b/N-0 compared to differential STTD that requires no CE. |
Year | DOI | Venue |
|---|---|---|
2005 | 10.1093/ietcom/E88-B.2.561 | IEICE TRANSACTIONS ON COMMUNICATIONS |
Keywords | Field | DocType |
pilot, decision feedback, channel estimation, OFDM, STTD | Noise reduction,Mobile radio,Telecommunications,Computer science,Fading,Communication channel,Computer network,Electronic engineering,Estimation theory,Orthogonal frequency-division multiplexing,Transmit diversity,Bit error rate | Journal |
Volume | Issue | ISSN |
E88B | 2 | 0916-8516 |
Citations | PageRank | References |
3 | 0.53 | 4 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Koichi Ishihara | 1 | 21 | 3.02 |
| Kazuaki Takeda | 2 | 188 | 25.92 |
| Fumiyuki Adachi | 3 | 1588 | 195.77 |