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Journal of Applied Sciences ›› 2003, Vol. 21 ›› Issue (2): 182-186.

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A Low-Complexity Modulation Scheme for DAMB

SHU Feng^1,2, LI Chong-yi¹, ZHAO Guang-ling², WU Le-Nan²

1 Nanjing R & D center, BENQ China Co., Ltd., Nanjing 210024, China;
2 Department of Radio Engineering, Southeast University, Nanjing 210096, China

Received:2001-10-13 Revised:2002-09-10 Online:2003-06-10 Published:2003-06-10

Abstract

Abstract: The time-domain DAPSK+OFDM is proposed for digital amplitude modulation broadcast (DAMB), which offers a low-complexity uncoded modulation scheme. First, the AM channel model below 30MHz is described, and the baseband model based on the OFDM system is shown. Next, the modulation, demodulation and BER performance of 32DAPSK4-OFDM are investigated in AWGN channel. Finally, the BER performance of 32DAPSK + OFDM is simulated in all the AM channels.

Key words: digital amplitude modulation broadcast, orthogonal frequency division multiplexing, differential amplitude phase shift keying, multilevel code

CLC Number:

TN911

SHU Feng, LI Chong-yi, ZHAO Guang-ling, WU Le-Nan. A Low-Complexity Modulation Scheme for DAMB[J]. Journal of Applied Sciences, 2003, 21(2): 182-186.

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A Low-Complexity Modulation Scheme for DAMB

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