| 標題：Low Complexity Receiver for Continuous Phase Modulation using 3RC-TL Phase Shaping Pulses | |
|---|---|
| 學年 | |
| 學期 | |
| 發表日期 | 2015/11/09 |
| 作品名稱 | Low Complexity Receiver for Continuous Phase Modulation using 3RC-TL Phase Shaping Pulses |
| 作品名稱（其他語言） | |
| 著者 | Richard H.-H. Yang; Ming-Tsai Lee; Chia-Kun Lee; Shiunn-Jang Chern |
| 作品所屬單位 | |
| 出版者 | |
| 會議名稱 | 2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) |
| 會議地點 | Nusa Dua, Bali, Indonesia |
| 摘要 | In our previous work, we presented an alternative
continuous phase modulation (CPM) scheme using time-limited phase shaping pulses (PSP), named as the CPM-TL. It could achieve large coding gains over conventional CPM using time-unlimited PSP (CPM-TU) in many cases. Also, we found a useful class of binary CPM-TL schemes that employed time-limited raised cosine (RC) PSP, with pulse width equal to 3, denoted as 3RC-TL of CPM scheme. It has large coding gains over the Minimum Shift Keying (MSK) and Gaussian MSK (GMSK) that are two of most popular modulators among the family of CPM-UT scheme. The MSK and GMSK modulators of CPM-TU scheme are known to have lower complexity in receiver design and excellent power-bandwidth performance. Basically, the optimal receiver of the 3RC-TL CPM scheme requires more complexity than the MSK or GMSK (using suboptimum receiver). In this paper, we deal with the reduce-complexity problem in receiver design for the 3RC-TL of CPM-TL scheme. To do so, we decompose the CPM-TL signal into a set of pulse-amplitude modulated (PAM) waveforms, using Euler’s formula, which is different from the one suggested by Laurent in 1986. We show that the complexity of PAM-based 3RC-TL receiver can be simplified, and to be implemented with the Viterbi algorithm (VA) that contains two-PAM waveforms and two states. Similarly, we also compare with the GMSK (BT=0.25) using the PAM-based receiver, that required only one PAM waveform and two states, or two PAM waveforms and four states. We found that 3 RC-TL of CPM scheme has 2.5~3.45 dB coding gains over the GMSK with simplified PAM-based receiver. |
| 關鍵字 | Continuous phase modulation;Time-limited phase shaping pulses; PAM-based receiver;3RC-TL;MSK;GMSK;Coding gain;power-bandwidth performance |
| 語言 | 英文 |
| 收錄於 | |
| 會議性質 | 國際 |
| 校內研討會地點 | 無 |
| 研討會時間 | 20151109~20151112 |
| 通訊作者 | Richard H.-H. Yang |
| 國別 | 印尼 |
| 公開徵稿 | |
| 出版型式 | |
| 出處 | 2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) (IEEE Explorer) |
| SDGs | |
