Abstract

The gradual evolution of mobile communication network into 4G is increasingly making the streaming media become a new attractive business. However, the service quality of mobile streaming media is urgent to be improved for better service. The relatively fair data scheduling mechanism, node data scheduling within cell and node data scheduling when switching cells are presented in terms of mobile feature of mobile streaming media nodes. The wireless access point selection for node data scheduling within cell is further researched, and a wireless access point selection mechanism which is suitable for mobile streaming media is provided. The theoretic analysis verifies the fair principle of user service quality for mobile streaming media, and the appropriate data scheduling mechanism improves the reliability of data transmission, which entirely boosts the service ability of system. The simulation test shows that the wireless access point selection mechanism balances the loads of wireless access points to some extent and improves the node number of entire system.

Highlights

  • The development of third generation mobile communication network technology, enforcement of mobile terminal functions and abundance of mobile business content are increasingly facilitating people’s daily life

  • This paper aims at solving some problems of mobile streaming media application to improve the service quality of mobile streaming media

  • The data scheduling mechanism for motion line AB is discussed which is suitable for the mobile node moving in only one cell which is covered by one wireless access point (AP)

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Summary

INTRODUCTION

The development of third generation mobile communication network technology, enforcement of mobile terminal functions and abundance of mobile business content are increasingly facilitating people’s daily life. The application of traditional streaming media technology into the mobile one will generally encounter two problems[4,5,6,7]. One is the instability of wireless network, limited bandwidth, largely fluctuated data transmission speed and so on, which affects the service quality greatly. Another is that the storage capacity and processing capability of mobile terminals are much lower in comparison with PC. The features above bring some problems, for example, how the limited bandwidth satisfies the more service requests, how the streaming media are played smoothly at the cell boundary, and how the data are scheduled reasonably in case of instable wireless network and limited terminal capacity. The wireless access point (AP) selection for node data scheduling within cell is further researched, and a wireless AP selection mechanism that is suitable for mobile streaming media is provided

PROBLEMS AND MODELS
MODEL AND DEFINITIONS
Node Scheduling Mechanism Within Cell
Data Scheduling Mechanism for Overlap Zone Between Two Cells
Data Scheduling Mechanism for Overlap Zone
G DA C
Data Scheduling Mechanism and Analysis
Test Design
Result Analysis
CONCLUSIONS
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