Cross-layer design of aggregated resource allocation for multimedia over heterogeneous wireless networks

It was reported that the distribution of multimedia traffic flows among different radio access networks can enable better network utilization than the transmission via single network. Aggregated radio resource management is a process that can efficiently manage the allocation and deallocation of radio resources among different radio access technologies so that mobile users are allowed to enjoy seamless services via various radio access technologies. A cross layer design of adaptive aggregated radio resource management scheme is proposed to adapt to the volatile change characteristics heterogeneous wireless networks. Besides a call admission control, an aggregated resource reallocation module is adopted to achieve efficient utilization of multiple radio access networks via fuzzy logic control and optimal reassignment of available bandwidth for heterogeneous wireless networks. A series of simulations was conducted to compare the proposed scheme with two representative aggregated radio resource management schemes in the literature. The capability of self-adaption in volatile radio access networks assists in the effectiveness and practicability of the proposed work.