## 5 The Proposed GMDPSO for Our Protocol
### GMDPSO: Greedy Discrete PSO with Memory
Simulations demonstrated that the proposed protocol is effective and promising. **Acknowledgments: The authors would like to thank the anonymous reviewers and guest editor for their valuable reviews that are very useful for the improvement of quality of this paper. This work was partially supported by the Second Batch of Strategic Emerging Industrial Core Technology Research Project in Guangdong Province under Grant No. 2012A010701005; the Key Lab of cloud computing and big data in Guangzhou under Grant No. SITGZ [2013]268-6; Engineering and Technology Research Center of Guangdong Province for Big Data Intelligent Processing under Grant No. GDDS[12013]1513-1-11; Key Project of the Combination of \"Production, Education and Research\" supported by Guangdong province and Ministry of Education, under Grant No. 2012B091000109 and Science and Technology Program in Guangzhou, China (International Science and Technology Cooperation Program) under Grant No. 2012J5100018; The Natural Science Foundation of Guangdong Province, under Grant No.2014A030313585; Guang Dong Provincial Natural fund project, under Grant No. 2016A030310300. **Author Contributions:** [PERSON] and [PERSON] defined problem and developed the ideal. [PERSON], [PERSON] and [PERSON] carried out the experiments and data analysis and wrote the relevant sections. **Conflicts of Interest:** The authors declare no conflict of interest. ## References

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