Paper Info
Title
Performance of Power Allocation and Iterative Receiver in SM-VLC System with Block Markov Superposition Transmission
Abstract
The performance of spatial modulation (SM) in an indoor multiple-input multiple-output visible light communication (MIMO-VLC) system is severely limited by the inherent strong correlations of the optical MIMO channels. To cope with this problem, a power allocation scheme by minimizing the bit-error rate (BER) bound is proposed in this paper, which can achieve a trade-off between the computational complexity and BER performance. On the other hand, a recently proposed coding scheme called block Markov superposition transmission (BMST) is constructed and combined with SM-VLC, where a genie-aided lower bound is also presented to predict the BER performance in the low-BER region. Furthermore, an iterative receiver, which exchanges messages between the BMST decoder and the soft-in soft-out (SISO) SM demapper, is employed to improve the BER performance. Simulation results demonstrate that the BMST-SM-VLC system with power allocation and iterative receiver can achieve significant coding gain even over strongly correlated optical MIMO channels.
Year
DOI
Venue
2018
10.1109/ICCChina.2018.8641230
2018 IEEE/CIC International Conference on Communications in China (ICCC)
Keywords
Field
DocType
Resource management,Optical transmitters,Light emitting diodes,Mutual information,Encoding,Optical receivers
Superposition principle,Coding gain,Computer science,Upper and lower bounds,Markov chain,Algorithm,Modulation,Real-time computing,Visible light communication,Computational complexity theory,Encoding (memory)
Conference
ISSN
ISBN
Citations 
2377-8644
978-1-5386-7005-7
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Shengxiao Chen100.68
Meiying Ji211.04
Xiao Ma348764.77