Efficient resource allocation for emerging OFDMA wireless networks

Waters, Juan Ignacio Del Castillo; Delicado, Francisco M.; Villalón, José

doi:10.1016/j.comcom.2013.09.012

Cited by 2 publications

(2 citation statements)

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“…We find that most of research in the recent years focus on the former issue, while approaches for the later issue are rarely found in the literature. That is, most of recent approaches are to minimize wasted unused slots because of leftover spaces in the downlink subframe.…”

Section: Related Work and Discussionmentioning

confidence: 77%

“…This raises the question of how to resolve the resource contention of multiple users to obtain optimal spectrum efficiency. We find that most of research in the recent years [19][20][21][22][23][24][25][26][27] focus on the former issue, while approaches for the later issue are rarely found in the literature. That is, most of recent approaches are to minimize wasted unused slots because of leftover spaces in the downlink subframe.…”

Section: Burst Mappingmentioning

confidence: 99%

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Joint scheduling and mapping in support of downlink fairness and spectral efficiency in ieee 802.16e OFDMA system

Thanh

Tung

Thu

et al. 2016

Int J Communication

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SUMMARYThe next generation broadband wireless networks deploy orthogonal frequency division multiple access (OFDMA) as the enabling technologies for broadband data transmission with QoS capabilities. In such broadband wireless systems, one major issue is how to utilize radio resource efficiently while maintaining fairness between sessions as well as providing adequate QoS. In this work, we propose an approach for OFDMA/time division duplex (TDD) downlink suitable for IEEE802.16e WiMAX systems that combines scheduling and burst mapping algorithms for a trade-off between session fairness, QoS, and spectral efficiency. While optimizing radio resources under QoS and fairness constraints is an NP-hard problem, we follow a heuristic approach that simplifies the complexity of the algorithm. Performance results show that while the new scheme outperforms the Proportional Fair algorithm in terms of fairness, it also improves the overall system spectral efficiency.

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Section: Related Work and Discussionmentioning

confidence: 77%