TY - JOUR
T1 - DHT-based OFDM system for passband transmission over frequency-selective channel
AU - Jao, Chin Kuo
AU - Long, Syu Siang
AU - Shiue, Muh Tian
N1 - Funding Information:
Manuscript received March 18, 2010; revised May 10, 2010; accepted May 11, 2010. Date of current version June 18, 2010. This work was supported in part by the National Science Council of Taiwan, under Grants NSC 97-2220-E-008-002 and 98-2220-E-008-002. The associate coordinating the review of this manuscript and approving it for publication was Dr. Kai-Kit Wong.
PY - 2010
Y1 - 2010
N2 - In this letter, a multicarrier modulation transceiver based on discrete Hartley transform (DHT) is investigated. The diagonalization of channel matrix is an important feature for the DFT-OFDM system. However, the conventional DHT-OFDM system cannot directly diagonalize the multipath fading channel so that the intercarrier coupling (ICC) effects will occur. To deal with this problem, we devise a new DHT-based OFDM architecture that can perfectly diagonalize the channel matrix by using the complementary property of DHT matrix. In addition, two-dimensional complex signaling, such as quadrature amplitude modulations (QAM), can also be applied to the proposed structure for bandwidth efficient transmission. The compatibility of DFT-OFDM and DHT-OFDM systems is also considered. Finally, numerical simulations shows the validity of the proposed DHT-based OFDM system.
AB - In this letter, a multicarrier modulation transceiver based on discrete Hartley transform (DHT) is investigated. The diagonalization of channel matrix is an important feature for the DFT-OFDM system. However, the conventional DHT-OFDM system cannot directly diagonalize the multipath fading channel so that the intercarrier coupling (ICC) effects will occur. To deal with this problem, we devise a new DHT-based OFDM architecture that can perfectly diagonalize the channel matrix by using the complementary property of DHT matrix. In addition, two-dimensional complex signaling, such as quadrature amplitude modulations (QAM), can also be applied to the proposed structure for bandwidth efficient transmission. The compatibility of DFT-OFDM and DHT-OFDM systems is also considered. Finally, numerical simulations shows the validity of the proposed DHT-based OFDM system.
KW - Circulant matrix
KW - Discrete Hartley transform (DHT)
KW - Intercarrier coupling (ICC)
KW - Orthogonal frequency-division multiplexing (OFDM)
KW - Trigonometric transform
UR - http://www.scopus.com/inward/record.url?scp=77953856168&partnerID=8YFLogxK
U2 - 10.1109/LSP.2010.2051618
DO - 10.1109/LSP.2010.2051618
M3 - 期刊論文
AN - SCOPUS:77953856168
SN - 1070-9908
VL - 17
SP - 699
EP - 702
JO - IEEE Signal Processing Letters
JF - IEEE Signal Processing Letters
IS - 8
M1 - 5487429
ER -