Adaptive power allocation for soft frequency reuse in multi-cell LTE networks

Yu, Yiwei; Dutkiewicz, Eryk; Huang, Xiaojing; Mueck, Markus

doi:10.1109/iscit.2012.6381049

Cited by 9 publications

(7 citation statements)

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“…Then DJRA selects all the FP pairs that yield the throughput requirements as expressed in Constraints (14) and (15), and submits these FP pairs into Equation (12) to get the power set W.…”

Section: An Improved Dynamic Joint Resource Allocation Algorithm Basementioning

confidence: 99%

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An Improved Dynamic Joint Resource Allocation Algorithm Based on SFR

Diao

2016

Algorithms

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Inter-cell interference (ICI) is the main factor affecting system capacity and spectral efficiency. Effective spectrum resource management is an important and challenging issue for the design of wireless communication systems. The soft frequency reuse (SFR) is regarded as an interesting approach to significantly eliminate ICI. However, the allocation of resource is fixed prior to system deployment in static SFR. To overcome this drawback, this paper adopts a distributed method and proposes an improved dynamic joint resource allocation algorithm (DJRA). The improved scheme adaptively adjusts resource allocation based on the real-time user distribution. DJRA first detects the edge-user distribution vector to determine the optimal scheme, which guarantees that all the users have available resources and the number of iterations is reduced. Then, the DJRA maximizes the throughput for each cell via optimizing resource and power allocation. Due to further eliminate interference, the sector partition method is used in the center region and in view of fairness among users, the novel approach adds the proportional fair algorithm at the end of DJRA. Simulation results show that the proposed algorithm outperforms previous approaches for improving the system capacity and cell edge user performance.

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“…Then DJRA selects all the FP pairs that yield the throughput requirements as expressed in Constraints (14) and (15), and submits these FP pairs into Equation (12) to get the power set W.…”

Section: An Improved Dynamic Joint Resource Allocation Algorithm Basementioning

confidence: 99%

“…The authors of [7][8][9][10] introduced several dynamic FFR schemes. Dynamic SFR approaches were illustrated in [11][12][13][14]. However, there are no works about joint resource allocation for the SFR, except for the method proposed by Qian in [15,16], where [16] is the improvement of [15].…”

Section: Introductionmentioning

confidence: 99%

An Improved Dynamic Joint Resource Allocation Algorithm Based on SFR

Diao

2016

Algorithms

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“…They reduce ICI by pre-planning the bandwidth among adjacent cells [4], [5], [6] and [7]. Fixed sub-channel allocation algorithms have low spectral efficiency, since they do not dynamically adapt to network traffic load variation.…”

Section: Literature Surveymentioning

confidence: 99%

Fair resource allocation for OFDMA multi-cell networks

Pottie

2014

2014 Information Theory and Applications Workshop (ITA)

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Abstract-Fair resource allocation in OFDMA networks is studied in this paper. We propose a distributed algorithm requiring minimum inter-cell information that embodies the principle of balancing advantaged and disadvantaged user traffic flows. A simple interference deterministic channel model assuming zero queuing delay is used. We propose a hybrid power and bandwidth allocation algorithm. A two-dimensional simulation conducted on both uniform and random-sized-cells shows the benefits are significant when fair allocations are desired.

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“…These adaptive scheduling schemes usually have a scheduling period of a few seconds or minutes, which is shorter than that of their static counterparts. Furthermore, the scheduling period can be milliseconds in dynamic interference coordination methods [20][21][22][23][24] that take more design aspects, for example network conditions, UEs' channel quality, etc., into account. Compared with the static and semi-static schemes, the dynamic interference coordination is relatively more complex due to its dependency on the network status, which can rapidly change in a short time.…”

Section: Introductionmentioning

confidence: 99%

“…From the perspective of exploited resource types, static ICIC techniques are mainly based on spectrum arrangement [1][2][3][4][5][6][7][13][14][15][16][17][18], while dynamic ICIC are typically related to power allocation [20][21][22][23][24]. However, many existing frequency planning schemes have poor resource utilization from the system perspective.…”

Section: Introductionmentioning

confidence: 99%