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may lead to long waiting delay for some services.
Furthermore, the division and adjustment of the channel
also depends on the experience of administrators. The
description of static policy rule itself is not enough to
react to the effect on system after different kinds of
services access. In this paper, the autonomic mobile
resource management architecture is established. By
means of the combination of policies and utility
computing, mobile resource utilization rate is raised,
making the system utility and user QoE to be maximized
and guaranteeing QoS with a variety of real-time and non
real-time services. Simulation result shows that the policybased
autonomic mobile network resource management
architecture has obvious advantages and flexibility.
Figure 7. Handoff Dropping Rate of Three Wireless Resource
Allocation Methods
Figure 8 shows the bandwidth occupancy of four kinds
of mobile user services: VoIP, IPTV, Net games, and FTP
download service, with time varying under the PBMRAM
framework.
VI. ACKNOWLEDGEMENT
The authors thank for the discussions and suggestions
from the fellows in their laboratory. This work is
supported by the National Natural Science Foundation of
China (grant no. 60973136) and the International
Cooperation and Exchange Project (China-Canadian
innovation and commercial development strategies)
Special Project (grant no. 2008DFA12140) of the
Ministry of Science and technology of China.
REFERENCES
Figure 8. Bandwidth Occupancy of Four Kinds of Mobile User Services
We can see that in the initial case, the system load is
small and all service requirements can be met. When the
system is close to full load, if there are a variety of new
services continuing to request accessing to the system, and
the conversational class (Spref = 0.4) and the interactive
class (Spref = 0.3) which have greater impact than other
on the overall utility can continue to access, while the
bandwidth of stream class service and background class
service will be squeezed to reduce the bandwidth
occupancy under the guidance of policy. The system will
keep fully loaded, and background class service will not
occupy the bandwidth continuously under the guidance of
the policy until a large number of conversational services
end or leave the cell.
V. CONCLUSION
The resources allocation of the wireless access
network are achieved usually by dividing channel and
adjusting threshold, and with the disadvantage that
reserving fixed channel may result in the decline of the
wireless network resource utilization rate, and
distinguishing services by priority then queuing to access
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