Abstract
With the development of the 5G communication systems, the coexistence of a variety of wireless networks has become an inevitable trend. Different wireless networks have different features and applications. However, they are independent of each other and have no cooperative relationship in the most of cases. This paper investigates the application of the Software Defined Network (SDN) and wireless network function vitalization on the access control criterion of the heterogeneous cellular networks. The SDN controller manages all wireless access points based on the inaccurate feedback network state information. Wireless network virtualization technology can simplify the complexity of the system running and improve the efficiency of the communication system based on the utility theory which takes a number of respects into consideration, such as the maximum achievable data rate, signal-to-interference-and-noise ratio (SINR) and the traffic load state. Moreover, a discrete stochastic optimization algorithm is presented to solve the problem of inaccurate feedback information in a fast convergence rate, which is caused by the delay and noise over wireless channels. Extensive simulations show that our proposed model and algorithm can achieve utility optimization considering practical parameters configurations in wireless networks.
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Acknowledgments
The authors would like to acknowledge the support from the International Science and Technology Cooperation Program of China under grants 2015DFG12580 and 2014DFA11640, the National Natural Science Foundation of China (NSFC) under the grants 61471180 and 61210002, the Fundamental Research Funds for the Central Universities under the HUST grants 2015XJGH011 and 2015MS038, the Hubei Provincial Science and Technology Department under the grant 2013CFB188, the Hubei Provincial Department of Education Scientific research projects (No. B2015188), the grant from Wenhua College (No. 2013Y08) and Graduate Base of Innovation and Entrepreneurship under the HUST. This research is partially supported by the EU FP7-PEOPLE-IRSES, project acronym S2EuNet (grant no. 247083), project acronym WiNDOW (grant no. 318992) and project acronym CROWN (grant no. 610524). This research is supported by the National international Scientific and Technological Cooperation Base of Green Communications and Networks (No. 2015B01008) and the Hubei International Scientific and Technological Cooperation Base of Green Broadband Wireless Communications.
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Jiang, H., Han, T., Ge, X., Wang, L. (2017). Utility Analysis of Software Defined Heterogeneous Cellular Networks. In: Lee, JH., Pack, S. (eds) Quality, Reliability, Security and Robustness in Heterogeneous Networks. QShine 2016. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 199. Springer, Cham. https://doi.org/10.1007/978-3-319-60717-7_20
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DOI: https://doi.org/10.1007/978-3-319-60717-7_20
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