TDMA and FDMA based resource allocations for quality of service provisioning over wireless relay networks
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abstract
We propose a set of resource allocation strategies for quality-of-service (QoS) provisioning over the wireless relay networks. By integrating information theory with the concept of effective capacity, our proposed strategies aim at maximizing the relay network throughput subject to a given delay QoS constraint. Applying the time division multiple access (TDMA) and frequency division multiple access (FDMA) to the relay networks, we develop the static and dynamic time/bandwidth allocation strategies with constant power. The simulation results show that our proposed strategies can significantly improve the effective capacity as compared to the conventional equal time/bandwidth allocation strategies. We also observe that the relay location can impact the improvement of the effective capacity, and the FDMA based scheme outperfoms the TDMA based scheme. 2007 IEEE.
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2007 IEEE Wireless Communications and Networking Conference