JOURNAL OF NETWORKS (JNW)
ISSN : 1796-2056
Volume : 2    Issue : 5    Date : September 2007

Resource Allocation Schemes in Integrated Heterogeneous Wireless and Mobile Networks
Wei Shen and Qing-An Zeng
Page(s): 78-86
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Abstract
Wireless and mobile networks have experienced a great success in the past few years. However,
any single type of wireless and mobile network cannot meet all types of service requirements. For
example, no single type of existing wireless and mobile network can provide both wide coverage
and high bandwidth services. In order to provide more comprehensive services, an integrated
heterogeneous wireless and mobile network is introduced. It consists of several different types of
wireless and mobile networks and can provide more connection options for mobile users than a
single type of wireless and mobile network. However, the integrated heterogeneous wireless and
mobile network imposes great challenges in many perspectives. One of these challenges is to
efficiently allocate resource for supporting multiple traffic (voice, video, data, and etc). Although a lot
of resource allocation schemes have been proposed, they mostly focus on supporting multiple
traffic in single type of network or supporting a single type of traffic in an integrated heterogeneous
wireless and mobile network. Therefore, they may not be suitable for supporting multiple traffic in an
integrated heterogeneous wireless and mobile network. In this paper, we propose two preemption
-based resource allocation schemes to support multiple traffic in an integrated heterogeneous
wireless and mobile network. In both schemes, we allow different types of traffic to have different
priorities and higher priority traffic can preempt lower priority traffic. We evaluate the system
performances of our proposed schemes by using extensive simulations. The simulation results
show that the proposed schemes can significantly improve the system performances.

Index Terms
Integrated heterogeneous wireless and mobile network, multiple traffic, resource allocation, vertical
handoff