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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Changqing Liu Xingbo Guo Jian Song Changyong Pan Zhixing Yang |
| Copyright Year | 2006 |
| Description | Author affiliation: Dept. of Electron. Eng., Tsinghua Univ., Beijing (Changqing Liu; Xingbo Guo; Jian Song; Changyong Pan; Zhixing Yang) |
| Abstract | Multiple amplitude shaped offset quadrature phase-shift keying (MA-SOQPSK) modulation based on multiple nonlinear power amplifiers (NLPAs) provides both high power-added efficiency and spectrum efficiency. However, the phase misalignment between the different branches of MA-SOQPSK signal in the process of the modulation can significantly degrade the bit-error-rate (BER) performance. A novel scheme of correcting this phase error is proposed in this paper, which contains a phase lock loop (PLL) in the modulation terminal. Theoretical estimation and simulation on the variance of the phase error are also given to validate our method. The BER simulation result shows that our scheme improves the performance more than 3 dB at 10"3, and the improvement becomes more distinct as the SNR. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 112115 |
| Page Count | 4 |
| File Format | |
| ISBN | 1424400627 |
| DOI | 10.1109/VTCF.2006.317 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-09-25 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Error correction Phase modulation Bit error rate Phase shift keying Amplitude modulation High power amplifiers Signal processing Degradation Phase locked loops Estimation theory |
| Content Type | Text |
| Resource Type | Article |
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