Wireless Networks

, Volume 25, Issue 2, pp 861–874 | Cite as

OCSM: an optimized channel split method—towards real-time and on-demand data broadcast scheduling

  • Wenbin HuEmail author
  • Zhenyu Qiu
  • Cong Nie
  • Fu LinEmail author


In recent years, it has been witnessed a boom in the development of mobile networks and a great increase in the computing ability of mobile devices. The rapid booming in client requests lead to some new challenges for real-time on-demand data broadcasting: (1) the dynamic diversity of the data characteristics; (2) the dynamic diversity of real-time clients’ demand greatly increase the volume of hot-spot data (the most access data); and (3) the clients’ demands for high service quality. To date, the current research has focused on the fixed-channel models (i.e. the bandwidth and number of channels are unchangeable) and algorithms. To adapt to the characteristics of the real-time requests, an optimized channel split method (OCSM) is proposed for automatic channel split and data allocation in this paper. The experiments undertaken in this study included two aspects: (1) determining the different strategies under different data sizes and deadlines; and (2) verifying the validity of the automatic channel split and data allocation through a series of experiments with the general performance matrics. The results show that the proposed method outperforms some of the state-of-the-art scheduling algorithms.


Data broadcast scheduling Adaptive channel split Loss rate Cluster On demand 



This work is partially supported by National Natural Science Foundation of China (61572369); National Natural Science Foundation of Hubei Province (2015CFB423); Wuhan Major Science and Technology Program (2015010101010023).


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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  1. 1.School of ComputerWuhan UniversityWuhanChina

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