@article{(Open Science Index):https://publications.waset.org/pdf/10002212,
	  title     = {Efficient Variable Modulation Scheme Based on Codebook in the MIMO-OFDM System},
	  author    = {Yong-Jun Kim and  Jae-Hyun Ro and  Chang-Bin Ha and  Hyoung-Kyu Song},
	  country	= {},
	  institution	= {},
	  abstract     = {Because current wireless communication requires high
reliability in a limited bandwidth environment, this paper proposes
the variable modulation scheme based on the codebook. The variable
modulation scheme adjusts transmission power using the codebook in
accordance with channel state. Also, if the codebook is composed of
many bits, the reliability is more improved by the proposed scheme.
The simulation results show that the performance of proposed scheme
has better reliability than the the performance of conventional scheme.},
	    journal   = {International Journal of Computer and Information Engineering},
	  volume    = {9},
	  number    = {7},
	  year      = {2015},
	  pages     = {1712 - 1715},
	  ee        = {https://publications.waset.org/pdf/10002212},
	  url   	= {https://publications.waset.org/vol/103},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 103, 2015},
	}