Centralized scheduling for joint transmission coordinated multi-point in LTE-Advanced

Brueck, Stefan; Zhao, Lu; Giese, Jochen; Amin, M. Awais

doi:10.1109/wsa.2010.5456455

Cited by 94 publications

(46 citation statements)

References 1 publication

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“…1. Finally, regarding the way the TPs coordinate their transmissions, we consider a centralised scheme [11]; a controlling/scheduling entity, located at a Master-eNB (M-eNB) assigned for a specific cluster, calculates the scheduled data bits to be transmitted to the JT-served UEs. After the Orthogonal Frequency-Division Multiple Access (OFDMA) processing (including raw data encoding, modulation, mapping and Inverse Fast Fourier Transform (IFFT)), each M-eNB distributes frequency domain IQ samples along with appropriate scheduling and precoding information to the coordinating TPs.…”

Section: System Deployment and Clustered Cooperationmentioning

confidence: 99%

Energy-aware clustering for multi-cell joint transmission in LTE networks

Katranaras

Imran

Dianati

2013

2013 IEEE International Conference on Communications Workshops (ICC)

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Abstract-This paper investigates the energy-aware clustering of cooperating base stations in the downlink of cellular networks. The focus of this work is on static clustering deployments for LTE systems when joint signal precoding is employed at multiple base stations. We demonstrate that properly planned clustering can provide the desired balance between network spectral and energy efficiency. To this end, we compare the overall energy consumption of various clustered cooperation layouts while considering different target performance metrics at user end. Our evaluations for various inter-site distance deployments in a practical macrocell scenario unveil the individual parameters controlling the energy effectiveness of a clustering strategy. In fact, it is shown that the choice of the optimum clustering layout depends on: 1) the specific service demands; 2) the deployment density of the network and; 3) on the ability of the base stations to jointly adjust their transmit power. Ultimately, we provide a general framework for choosing the most appropriate cooperation set of base stations in energy-aware networks.

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Section: System Deployment and Clustered Cooperationmentioning

confidence: 99%

Energy-aware clustering for multi-cell joint transmission in LTE networks

Katranaras

Imran

Dianati

2013

2013 IEEE International Conference on Communications Workshops (ICC)

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“…In the 802.11 WLAN work group with the 2.5 GHz frequency band, characterization of the indoor radio propagation channel is essential. The empirical model helps to reduce the computational complexity [9]. So we have taken Log Normal path loss model, which is best, suited for femto cell range with 2.5 GHz frequency range.…”

Section: B Wireless Local Area Networkmentioning

confidence: 99%

“…The major disadvantages of such propagation models are; these are not suited for each and every type of terrain and the environment for estimating the path loss [9]- [12]. The RSS solely depends on the proper estimation of path loss for which a proper path loss model is needed to adopt.…”

Section: Introductionmentioning

confidence: 99%

Received Signal Strength Based Vertical Hand Off Scheme for K-Tier Heterogeneous Networks

Panda

Patra

Acharya

2013

2013 International Conference on Communication Systems and Network Technologies

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The k-tier heterogeneous wireless networks (kHWN) deployment focused on the needs of the users. Many challenges exist in integrating kHWN architectures into one seamless flow of voice, data and multimedia. The handoff's between kHWN that allows user equipment (UE) to continuously find seamless connectivity with the transceivers is complex and challenging. The common and most desired, cost effective parameter for vertical handoff scheme (VHOS) is the receiving signal strength (RSS). In this paper we investigated the best suited empirical and statistical model to get the optimized result of the RSS for GSM, UMTS, advanced Long Term Evolution (LTE) and WLAN which are integrated in the kHWN. Based on the RSS results the VHOS algorithm for kHWN is proposed, to achive mobility within the kHWN. The simulation results validate the findings.

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“…A downlink (DL) coordination scheme proposed in [5] applies in the CoMP cooperating set to provide best groups of CoMP transmission points and scheduled users for MU-MIMO operation with partial channel state information (CSI) and low complexity. Then reference [6] proposes a centralized scheduling approach for CoMP-JT, which adds only low complexity to the 3GPP LTE Release 8 system. Hence, an effective scheduling scheme design is desirable to obtain the performance profit of CoMP system.…”

Section: Introductionmentioning

confidence: 99%

An effective scheduling scheme for CoMP in heterogeneous scenario

Cui

Liu

et al. 2012

2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC)

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Coordinated Multi-Point (CoMP) transmission is considered as a tool for 3GPP LTE-Advanced to increase the cell edge throughput. In CoMP JT (Joint Transmission) mechanism, multiplied time-frequency resources are occupied by JT users. Additionally, scheduling relevancy exists among the users, i.e., scheduling orders of different users influence on the cell average and cell edge throughput. So the impact of scheduling relevancy should be considered among the users in the same coordination cluster. Otherwise, the CoMP system throughput will decline significantly. To address this issue, an effective scheduling scheme is proposed for CoMP in heterogeneous scenario. Taking both the user fairness and the throughput of the coordination cluster into account, a suitable scheduling scheme is proposed to improve the system throughput. System-level simulation results prove that, the proposed scheduling scheme outperforms the conventional scheduling scheme in terms of both cell average and cell edge spectral efficiency.

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Centralized scheduling for joint transmission coordinated multi-point in LTE-Advanced

Cited by 94 publications

References 1 publication

Energy-aware clustering for multi-cell joint transmission in LTE networks

Energy-aware clustering for multi-cell joint transmission in LTE networks

Received Signal Strength Based Vertical Hand Off Scheme for K-Tier Heterogeneous Networks

An effective scheduling scheme for CoMP in heterogeneous scenario

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