Low-complexity optical space-time trellis code

doi:10.3788/AOS201636.0806008

	Low-complexity optical space-time trellis code
	Wang, Huiqin 1; Xiao, Bo 1; F., Jia ; M., Cao ; J., Sun
刊名	Guangxue Xuebao/Acta Optica Sinica
	2016-08-10
卷号	36 期号:8
关键词	Antennas Bit error rate Convolutional codes Decoding Maximum likelihood Modulation Optical communication Optical signal processing Viterbi algorithm Bit error rate (BER) performance Cancellation algorithms Complexity Computational requirements Feedback interfaces Intensity modulations Space-time trellis codes Viterbi decoding algorithms
ISSN号	02532239
DOI	10.3788/AOS201636.0806008
英文摘要	According to the characteristics of optical communication, a low-complexity optical space time trellis code based on pulse position modulation (PPM) is proposed. The scheme is based on the idea of delay diversity of the transmitter, and establishes the correlation of signals in time and space. The feedback interface cancellation algorithm (FICA) is used at the receiving end, and the maximum likelihood decision is used to decode the eliminated interference signal. The proposed scheme reduces the complexity of decoding by sacrificing the performance of transmitting diversity, which reduces the computational requirement of the system. The computational complexities of the algorithm and the Viterbi decoding algorithm are analyzed with the antenna numbers of 2 and 3. The simulation results show that when diversity gain is the same, the decoding complexities of the proposed scheme are reduced by 93.75% and 95.84% respectively, compared with the Viterbi decoding algorithm, and the deteriorations of the bit error rate performance are only 3 dB and 4.77 dB. © 2016, Chinese Lasers Press. All right reserved.
语种	中文
出版者	Chinese Optical Society
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150374]
专题	计算机与通信学院
作者单位	1.College of Computer & Communication, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China; 2.Provincial Network Management Center, Gansu Company Limited China Mobile Group, Lanzhou; Gansu; 730070, China
推荐引用方式 GB/T 7714	Wang, Huiqin,Xiao, Bo,F., Jia,et al. Low-complexity optical space-time trellis code[J]. Guangxue Xuebao/Acta Optica Sinica,2016,36(8).
APA	Wang, Huiqin,Xiao, Bo,F., Jia,M., Cao,&J., Sun.(2016).Low-complexity optical space-time trellis code.Guangxue Xuebao/Acta Optica Sinica,36(8).
MLA	Wang, Huiqin,et al."Low-complexity optical space-time trellis code".Guangxue Xuebao/Acta Optica Sinica 36.8(2016).