| Presentation | 2012-01-27 Highly Accurate Estimation of Frequency Offset under Co-Channel Interference Conditions Yuya MATSUMOTO, Satoshi DENNO, Shigeru TOMISATO, Masaharu HATA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In wireless sensor networks, sensor collaborative beam forming in which plural transmitting sensors collaborate to form a signal beam has been studied to realize highly reliable transmission. In the beam forming, if there is frequency offset between transmitters and their receiver, the combined power by the beam forming decreases and it results in transmission performance degradation. This paper proposes a highly accurate estimation method of frequency offset under inter-symbol interferences owing to multipath propagation and co-channel interferences. The proposed method decomposes correlation matrix made from pilot signals into eigenvalues and estimates frequency offset from the eigenvector of the maximum eigenvalue. Under multipath propagation and co-channel interference conditions, the computer simulation results show that the proposed method can achieve estimation error of less than 1.0x10^<-4>, when the normalized frequency offset by a chip period in each pilot signal is 1.0x10^<-3>. This shows that the proposed method can realize highly accurate estimation of frequency offset even under multipath propagation and co-channel interference conditions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Sensor Network / Frequency Offset / Co-Channel Interference / Multipath Propagation |
| Paper # | SIP2011-98,RCS2011-287 |
| Date of Issue |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2012/1/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Highly Accurate Estimation of Frequency Offset under Co-Channel Interference Conditions |
| Sub Title (in English) | |
| Keyword(1) | Sensor Network |
| Keyword(2) | Frequency Offset |
| Keyword(3) | Co-Channel Interference |
| Keyword(4) | Multipath Propagation |
| 1st Author's Name | Yuya MATSUMOTO |
| 1st Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University() |
| 2nd Author's Name | Satoshi DENNO |
| 2nd Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| 3rd Author's Name | Shigeru TOMISATO |
| 3rd Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| 4th Author's Name | Masaharu HATA |
| 4th Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| Date | 2012-01-27 |
| Paper # | SIP2011-98,RCS2011-287 |
| Volume (vol) | vol.111 |
| Number (no) | 404 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |