The Fairness Resource Distribution Algorithm for OFDMA System

Zhang, Chaoyi; Wu, Muqing; Su, Jingfang; Luan, Linlin

doi:10.1109/wicom.2011.6036688

Cited by 2 publications

(3 citation statements)

References 11 publications

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“…The transmitting rate of relay link user k is determined by the minimal rate of two hops [2,16,18,20], therefore r k,m,n =min{ r k,m,n (1) , r k,m,n…”

Section: System Modelmentioning

confidence: 99%

“…Similarly, the process above can also be to first allocate all MS by PF algorithm, then the BS balance rates of both hops [17]. Upon the proposal of THPF, the problem of how to minimize the system power allocation has been studied [18]- [19] with quite some fresh ideas put forward, including to consider the relay system resource allocation problem as a decision model, and to combine the PF algorithm with analytic hierarchy process in order to determine the MS's allocating priority [20]. Lately, some researchers [12], [21]- [23] have studied dynamic strategies by dividing two-hop sub-channels, in which leisure subplot is allocated to MS by BS directly to improve the subplot resource utilization [21].…”

Section: Introductionmentioning

confidence: 99%

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Adaptive Subcarrier Allocation for OFDM Relay System

Dai¹,

Che²,

Fang³

et al. 2013

JCM

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This paper proposes two scheduling algorithms for subcarrier allocation of OFDM relay system, enhanced two-hop adaptive proportional fairness (E-THAPF) and user-number-dynamic two-hop adaptive proportional fairness (UND-THAPF), aiming to improve the performance of the traditional two-hop proportional fairness (THPF) scheduling algorithm. By modifying the priority of the two hops in THPF in an adaptive fashion, E-THAPF and UND-THAPF can optimize the subcarrier allocation dynamically despite of the subcarriers fluctuation, and thus can keep the system flexible and stable. Moreover, the factor α in the dynamic index of UND-THAPF is made adaptive to the change of the number of users. Simulation results show that the proposed algorithms achieve a better compromise between system fairness and spectral efficiency. In particular, while E-THAPF is designed to be adaptive to different sub-channel conditions, UND-THAPF performs even better for taking number of users into account in the optimization. 

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“…The transmitting rate of relay link user k is determined by the minimal rate of two hops [2,16,18,20], therefore r k,m,n =min{ r k,m,n (1) , r k,m,n…”

Section: System Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adaptive Subcarrier Allocation for OFDM Relay System

Dai¹,

Che²,

Fang³

et al. 2013

JCM

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show abstract

“…This approach requires an additional method to optimize the total number of resources according to the transmission mode feasibility of each service. Similar approach using AHP as a weighting structure with an associate optimization method is also applied in [8] for broadcast scheduling in 3G UMTS system, and in [9] for resource distribution in OFDMA systems. Other pertinent references regarding implementation and simulation of resource allocation in different cellular network scenarios are considered in [10], [11], [12] and [13].…”

Section: Introductionmentioning

confidence: 99%

Hierarchical taylor-made scheduling for data traffic with prioritization over LTE networks

Neto

Cardoso

Ferreira³

et al. 2015

2015 International Workshop on Telecommunications (IWT)

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Long Term Evolution (LTE) is the standard developed by the 3rd Generation Partnership Project (3GPP) to address the ITU's 4G requirements. For the first time, we have technology convergence in a generation of cellular communication systems. LTE promises data transmission of about 100 Mbps and its advanced version (LTE-A) goes even further with more than 1 Gbps in the downlink channel. Such very high data rates will only be achievable with appropriate network resource optimizations. Accordingly, this paper presents a flexible and adaptive scheme of multi-user scheduling considering data traffic prioritization in the LTE downlink channel. The proposed scheduling algorithm uses Proportional Fairness and Analytic Hierarchy Process (AHP) that allows to aggregate performance criteria and to improve resource allocation for users based on the general traffic.

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The Fairness Resource Distribution Algorithm for OFDMA System

Cited by 2 publications

References 11 publications

Adaptive Subcarrier Allocation for OFDM Relay System

Adaptive Subcarrier Allocation for OFDM Relay System

Hierarchical taylor-made scheduling for data traffic with prioritization over LTE networks

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