An Optimal and Priority Based Rate Guaranteed Radio Resource Allocation Scheme for LTE Downlink

Rebekka, B.; Sudheep, S.; Malarkodi, B.

doi:10.1007/s11277-015-2468-1

Cited by 7 publications

(9 citation statements)

References 15 publications

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“…This algorithm is accomplished in a way to satisfy the priority users followed by allocating the radio resource for the remaining users. According to the results show in [16], the fairness index and throughput of the proposed method are lower than PF.…”

Section: Trade-off Between Fairness and Spectral Efficiencymentioning

confidence: 89%

“…In [16], Rebekka et al discussed a RRA scheme under the constraint of the minimum data rate requirement of each user. All users are particularized into Priority and Non Priority users.…”

Section: Trade-off Between Fairness and Spectral Efficiencymentioning

confidence: 99%

“…(11) and three constraints as in Eqs. (12), (16), and (17). This is an NP-hard problem that is complex and cannot be resolved in RT.…”

Section: Contention Resolution Mapping Algorithmmentioning

confidence: 99%

“…As can be seen in Figure 1, user's data, which are called data bursts or Service Data Units ‡ (SDU) in IEEE802. 16, are mapped into timefrequency rectangular regions in the subframe. The smallest time-frequency unit that user's data can use in the subframe is called slot.…”

Section: Introductionmentioning

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: Trade-off Between Fairness and Spectral Efficiencymentioning

confidence: 89%

“…In [16], Rebekka et al discussed a RRA scheme under the constraint of the minimum data rate requirement of each user. All users are particularized into Priority and Non Priority users.…”

Section: Trade-off Between Fairness and Spectral Efficiencymentioning

confidence: 99%

“…(11) and three constraints as in Eqs. (12), (16), and (17). This is an NP-hard problem that is complex and cannot be resolved in RT.…”

Section: Contention Resolution Mapping Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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“…Calduwel et al [21] proposed a priority based scheduling algorithm to reduce the average waiting time of the real-time users in the cellular coverage area. Rebekka et al [22] developed a GBR algorithm to convince more number of real-time users by setting the bandwidth threshold values. It limits the user satisfaction when more users are crossing the threshold values.…”

Section: Related Workmentioning

confidence: 99%

RSA – QoS: A Resource Loss Aware Scheduling Algorithm for Enhancing the Quality of Service in Mobile Networks

2018

KSII TIIS

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Adaptive Multi-Rate Codec is one of the codecs which is used for making voice calls. It helps to connect people who are scattered in various geographical areas. It adjusts its bit-rate according to the user's channel conditions. It plays a vital role in providing an improved speech quality of voice connection in Long Term Evolution (LTE). There are some constraints which need to be addressed in providing this service profitably. Quality of Service (QoS) is the dominant mechanism which determines the quality of the speech in communication. On several occasions, number of users are trying to access the same channel simultaneously by standing in a particular region for a longer period of time. It refers to Multiuser channel sharing problem which leads to resource loss very often. The main aim of this paper is to develop a novel RSA-QoS scheduling algorithm for reducing the Resource Loss Ratio. Eventually, it increases the throughput.The simulation result shows that the RSA-QoS increases the number of users for accessing the resources better than the existing algorithms in terms of resource loss and throughput. Ultimately, it enhances the QoS in Mobile Networks.

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Optimized two‐level scheduler for video traffic in LTE downlink framework

Elhadad

El‐Shafai

El‐Rabaie

et al. 2021

Int J Communication

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The most challenging issue in long-term evolution (LTE) mobile networks is the design of an optimal scheduler. The main target of the LTE scheduling strategy is to guarantee a certain level of quality of service (QoS) in order to satisfy users' needs. In this work, a novel queue-optimized two-level scheduling strategy is introduced. The queue-optimized scheduler has the ability to support both real-time (RT) and non-RT (NRT) services in the LTE downlink framework. The first level of the proposed scheduler depends on an optimized queue length threshold that is dynamically adapted to adjust the assigned resources for the video traffic to maintain the throughput around its average value. The proposed scheduling strategy is utilized to efficiently enhance the radio resource allocation process for video traffic by minimizing the allocation of any excess unwanted resources, which consequently facilitates the support of more video connections and enhances the overall network spectral efficiency. The distribution of the resources among users for RT and NRT applications is actually performed at the second level of the scheduling process. The physical resource blocks (PRBs) are assigned according to the enhanced earliest due date first (EEDDF) mechanism. The proposed scheduling strategy prioritizes users according to their service requirements, to improve the QoS provision. The proposed scheduler maximizes the video applications throughput, and generally, minimizes the packet delay and the packet loss rate (PLR) for RT applications.

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An Optimal and Priority Based Rate Guaranteed Radio Resource Allocation Scheme for LTE Downlink

Cited by 7 publications

References 15 publications

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

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

RSA – QoS: A Resource Loss Aware Scheduling Algorithm for Enhancing the Quality of Service in Mobile Networks

Optimized two‐level scheduler for video traffic in LTE downlink framework

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