Optimal power masking in soft frequency reuse based OFDMA networks

Bohge, Mathias; Gross, James; Wolisz, Adam

doi:10.1109/ew.2009.5358004

Cited by 41 publications

(25 citation statements)

References 6 publications

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“…In this sense, research has also been done to compute the optimum power that should be assigned to the different sub-carriers to maximize throughput. Smart examples of this can be found in [4], [5].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Downlink Interference Coordination Techniques in LTE Networks

González

García-Lozano

Corvino

et al. 2010

2010 IEEE 72nd Vehicular Technology Conference - Fall

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Abstract-This paper presents a joint study of several intercell interference coordination strategies considering both static and dynamic approaches, and with different adjustments in their basic parameters. A wide evaluation is presented with special emphasis on the efficiency vs. fairness tradeoff. Besides, additional performance metrics have been considered as enablers of a full understanding of the strengths and weaknesses of each method. Results show that, although spectral efficiency can achieve similar values with proper tuning, certain schemas outperform others in important parameters such as the effectiveness in the utilization of resources. Dynamic semi-centralized approaches appear as an attractive option with an acceptable level of adaptability, moderate complexity and good performance.

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Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Downlink Interference Coordination Techniques in LTE Networks

González

García-Lozano

Corvino

et al. 2010

2010 IEEE 72nd Vehicular Technology Conference - Fall

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show abstract

“…The impact of choice of the cell muting pattern set and its cardinality is also studied through numerical examples for various cellular topologies. The proposed approach leads to reduced computational complexity of the NLS and reduced information exchange requirements between CLSs and the NLS in comparison with centralized schemes that have higher implementation complexities [15].…”

Section: Introductionmentioning

confidence: 99%

“…D-ICIC schemes are categorized into centralized, semicentralized, and decentralized, on the basis of how cell-level coordination is achieved and subsequently the complexity of implementation of the underlying scheme [14]. In centralized D-ICIC, the channel state information of each user is fed to a centralized entity which then makes scheduling decisions to maximize the throughput under fairness and power constraints [15]. However, such centralized scheduling is complex to implement due to the requirement of timely and large per-user feedback information as well as the complexity of the centralized scheduler [16].…”

Section: Introductionmentioning

confidence: 99%

Joint Cell Muting and User Scheduling in Multicell Networks with Temporal Fairness

Shahsavari

Akar

Khalaj

2018

Wireless Communications and Mobile Computing

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A semicentralized joint cell muting and user scheduling scheme for interference coordination in a multicell network is proposed under two different temporal fairness criteria. In the proposed scheme, at a decision instant, each base station (BS) in the multicell network employs a cell-level scheduler to nominate one user for each of its inner and outer sections and their available transmission rates to a network-level scheduler which then computes the potential overall transmission rate for each muting pattern. Subsequently, the network-level scheduler selects one pattern to unmute, out of all the available patterns. This decision is shared with all cell-level schedulers which then forward data to one of the two nominated users provided the pattern they reside in was chosen for transmission. Both user and pattern selection decisions are made on a temporal fair basis. Although some pattern sets are easily obtainable from static frequency reuse systems, we propose a general pattern set construction algorithm in this paper. As for the first fairness criterion, all cells are assigned to receive the same temporal share with the ratio between the temporal share of a cell center section and that of the cell edge section being set to a fixed desired value for all cells. The second fairness criterion is based on max-min temporal fairness for which the temporal share of the network-wide worst case user is maximized. Extensive numerical results are provided to validate the effectiveness of the proposed schemes and to study the impact of choice of the pattern set.

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“…LTE was designed to support frequency reuse one schemes on which this paper concentrates. In [6] different frequency reuse schemes were suggested and compared. The approach is to partition the available resources and apply different relative transmit powers to the partitions.…”

Section: B Frequency Reuse Schemesmentioning

confidence: 99%

Analysis of 3GPP LTE-Advanced cell spectral efficiency

Bultmann

Andre

Schoenen

2010

21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications

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Abstract-Multihop and multipoint transmissions are two of the main features towards an increased spectral efficiency for the LTE-Advanced mobile radio system. Fixed wireless relays with in-band backhauling are considered as a multihop technique in LTE-Advanced. Relays improve cell capacity and cell edge user performance depending on the deployment. In this paper, at first, results for the peak spectral efficiency of LTE-Advanced are presented and secondly, an analytical model to calculate the cell spectral efficiency of relay enhanced cell deployments in the context of the IMT-Advanced evaluation is presented. The developed model is applied to the LTE-Advanced system comparing different relay deployments with different frequency reuse schemes.

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Optimal power masking in soft frequency reuse based OFDMA networks

Cited by 41 publications

References 6 publications

Performance Evaluation of Downlink Interference Coordination Techniques in LTE Networks

Performance Evaluation of Downlink Interference Coordination Techniques in LTE Networks

Joint Cell Muting and User Scheduling in Multicell Networks with Temporal Fairness

Analysis of 3GPP LTE-Advanced cell spectral efficiency

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