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Neri Therese Ariane N. Jung Hyun-Chol Jang Se-Kyeong Kang Seok-Joong Choi Byeong-Dae 《Food science and biotechnology》2021,30(5):643-652
Food Science and Biotechnology - This study explored the potential of using hybrid pump dryer (HPD) to utilize overproduction in aquaculture of oysters, especially during winter. HPD-dried oysters... 相似文献
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Seok-Joong Heo Hyung-Suk Noh Jong-Seon No Dong-Joon Shin 《Broadcasting, IEEE Transactions on》2007,53(4):804-808
In this paper, we propose a new peak-to-average power ratio (PAPR) reduction scheme of orthogonal frequency division multiplexing (OFDM) system, called a modified selected mapping (SLM) scheme, which considerably reduces the computational complexity with keeping the similar PAPR reduction performance compared with the conventional SLM scheme. The proposed scheme is analytically and numerically evaluated for the OFDM system specified in the IEEE 802.16 standard. For the OFDM system with 2048 subcarriers, the proposed scheme with 4 binary phase sequences can reduce the complex multiplications by 63.5% with the similar PAPR reduction compared with the SLM scheme with 16 binary phase sequences. 相似文献
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A new PTS OFDM scheme with low complexity for PAPR reduction 总被引:5,自引:0,他引:5
Dae-Woon Lim Seok-Joong Heo Jong-Seon No Habong Chung 《Broadcasting, IEEE Transactions on》2006,52(1):77-82
In this paper, we introduce a new partial transmit sequence (PTS) orthogonal frequency division multiplexing (OFDM) scheme with low computational complexity. In the proposed scheme, 2/sup n/-point inverse fast Fourier transform (IFFT) is divided into two parts. An input symbol sequence is partially transformed using the first l stages of IFFT into an intermediate signal sequence and the intermediate signal sequence is partitioned into a number of intermediate signal subsequences. Then, the remaining n-l stages of IFFT are applied to each of the intermediate signal subsequences and the resulting signal subsequences are summed after being multiplied by each member of a set of W rotating vectors to yield W distinct OFDM signal sequences. The one with the lowest peak to average power ratio (PAPR) among these OFDM signal sequences is selected for transmission. The new PTS OFDM scheme reduces the computational complexity while it shows almost the same performance of PAPR reduction as that of the conventional PTS OFDM scheme. 相似文献
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