| Presentation | 2012-04-19 A Study on Nonlinear Equalization for Constant Envelop Modulation Receiver Affected by Quantization Error Kohei KOTERA, Osamu MUTA, Hiroshi FURUKAWA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The authors have proposed constant envelope modulation (CEM) systems with a low resolution ADC on the receiver side. The proposed CEM system can use a power-efficient nonlinear power amplifier on the transmitter side. Moreover, power consumption at the analog devices is effectively reduced by employing a low resolution ADC. However, the received signal is seriously affected by severe quantization error by a low resolution ADC. As a solution to performance degradation at the CEM receiver affected by quantization error, nonlinear equalization (VE: Viterbi Equalization) that estimates quantization error is applied in CEM system. In this paper, we propose efficient VE that estimates quantization error at baseband, where quantization error is estimated by using a simple function. The proposed VE improves BER performance of CEM seriously affected by quantization error, while computational complexity of equalization is effectively reduced. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Constant Envelope Modulation / Low Resolution ADC / Quantization Error Estimation / Viterbi Equalization |
| Paper # | RCS2012-4 |
| Date of Issue |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2012/4/12(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) | A Study on Nonlinear Equalization for Constant Envelop Modulation Receiver Affected by Quantization Error |
| Sub Title (in English) | |
| Keyword(1) | Constant Envelope Modulation |
| Keyword(2) | Low Resolution ADC |
| Keyword(3) | Quantization Error Estimation |
| Keyword(4) | Viterbi Equalization |
| 1st Author's Name | Kohei KOTERA |
| 1st Author's Affiliation | Graduate School of Information Science and Electrical Engineering, Kyushu University() |
| 2nd Author's Name | Osamu MUTA |
| 2nd Author's Affiliation | Center for Japan-Egypt Cooperation in Science and Technology, Kyushu University |
| 3rd Author's Name | Hiroshi FURUKAWA |
| 3rd Author's Affiliation | Graduate School of Information Science and Electrical Engineering, Kyushu University |
| Date | 2012-04-19 |
| Paper # | RCS2012-4 |
| Volume (vol) | vol.112 |
| Number (no) | 11 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |