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In a heterogeneous wireless network (HWN), users from multiple networks with various QoS requirements compete with each other for finite resources. As this competition becomes intense, the distribution of resources may become extremely haphazard, thus making users of certain classes to be disadvantaged over others. This may destabilize the HWNs and even lead certain classes of users requiring relatively higher resources into complete extinction. Hence, the key for a sustainable HWN is a resource management scheme, which fairly allocates all network resources. Therefore, in this paper, first we propose an analytical model to characterize such unfairness and instability in HWNs. This approach is based on the theory of ecological multi-species multi-resource competition (MSMRC). Next, to counter the aforementioned instability and unfairness, we propose a new joint radio resource management (JRRM) scheme, MSMRC scheme, which is capable of ensuring the HWN's stability and maintain the coexistence of users of widely diverse requirements, even under the extreme situations. Results indicate that the MSMRC scheme also supports the sustainability of the HWN by helping it to withstand sudden disruptions.
Date of Conference: 11-14 Sept. 2011