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A new cross-layer urgent bit first (CLUBF) scheduling mechanism is proposed and analyzed in the paper. The proposed algorithm focuses on cross-layer resource allocation scheme for heterogeneous services in orthogonal frequency division multiplexing access (OFDMA) downlink systems. And the CLUBF scheduling mechanism is operated over four steps: (1) traffic mapping: dividing traffic into UB (urgent...
Efficient radio resource allocation is essential to provide quality of service (QoS) for wireless networks. In this paper, a cross-layer resource allocation scheme is presented with the objective of maximizing system throughput, while providing guaranteed-QoS for users. With the assumption of a finite queue for arrival packets, the proposed scheme dynamically allocates radio resources based on user's...
In this paper, an efficient resource management scheme applied to heterogeneous services scenario in multiple- input and multiple-output/orthogonal frequency division multiplexing (MIMO/OFDM) system is proposed. The design of the scheme is to maximize the system throughput while guaranteeing QoS requirements for users. At medium access control (MAC) layer, an urgency-factor based scheduler is designed...
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