Paper Abstract and Keywords |
Presentation |
2018-02-22 16:15
Joint Maximum A Posteriori Estimation of Channel and Interference Power with Channel Covariance Estimation for OFDM Transmission Masahiro Kudo, Tomoaki Ohtsuki (Keio Univ.) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Superposed multicarrier transmission has been proposed as one of the techniques to improve frequency utilization efficiency. In the scheme, it is possible to reduce the total required bandwidth by overlapping a part of the frequency band of each communication signal. However, since it is affected by interference from the communication signal sharing the same frequency bands, its performance deteriorates. An error correction code is used as one of means to reduce the influence of interference, however, to reduce decoding errors, it is necessary to get information about interference signal (power, position). We have previously proposed the scheme using the joint maximum a posteriori estimation of channel and interference power. Although the scheme achieves good estimation accuracy, channel covariance is necessary for estimation, which is assumed to be known at the receiver. In this report, we evaluate the effect of channel covariance estimation methods with the joint maximum a posteriori estimation of channel and interference signal power. As an estimation method of the channel covariance, we study two methods based on the estimated value of the channel. Through computer simulation, we compare the estimation accuracy of channel and interference signal power with known case. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
OFDM / LLR / MAP / channel estimation / interference power estimation / covariance / / |
Reference Info. |
ITE Tech. Rep., vol. 42, no. 5, BCT2018-31, pp. 29-32, Feb. 2018. |
Paper # |
BCT2018-31 |
Date of Issue |
2018-02-15 (BCT) |
ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
Download PDF |
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Conference Information |
Committee |
BCT IEEE-BT |
Conference Date |
2018-02-22 - 2018-02-23 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kanponoyado-Toyama |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
BCT |
Conference Code |
2018-02-BCT-BT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Joint Maximum A Posteriori Estimation of Channel and Interference Power with Channel Covariance Estimation for OFDM Transmission |
Sub Title (in English) |
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Keyword(1) |
OFDM |
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LLR |
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MAP |
Keyword(4) |
channel estimation |
Keyword(5) |
interference power estimation |
Keyword(6) |
covariance |
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1st Author's Name |
Masahiro Kudo |
1st Author's Affiliation |
Keio University (Keio Univ.) |
2nd Author's Name |
Tomoaki Ohtsuki |
2nd Author's Affiliation |
Keio University (Keio Univ.) |
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Speaker |
Author-1 |
Date Time |
2018-02-22 16:15:00 |
Presentation Time |
20 minutes |
Registration for |
BCT |
Paper # |
BCT2018-31 |
Volume (vol) |
vol.42 |
Number (no) |
no.5 |
Page |
pp.29-32 |
#Pages |
4 |
Date of Issue |
2018-02-15 (BCT) |
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