Using elected coordination stations for CSI feedback on CoMP downlink transmissions

Kazi, Baha Uddin; Etemad, Mohammad; Wainer, Gabriel; Boudreau, Gary

doi:10.1109/spects.2016.7570508

Cited by 7 publications

(7 citation statements)

References 17 publications

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“…Coordinated Multipoint (CoMP) transmission and reception is considered as an effective method to improve the user throughput, especially for cell edge users, by mitigating intercell interference (ICI) [16,17,12]. In CoMP enabled systems, the eNBs are grouped into cooperating clusters.…”

Section: Background and Related Workmentioning

confidence: 99%

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Handover enhancement for LTE-Advanced and beyond heterogeneous cellular networks

Kazi

Wainer

2017

2017 International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS)

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Heterogeneous networks (HetNets) are considered a promising cellular network architecture to provide services to the massive number of subscribers. However, in heterogeneous networks, as cell size becomes smaller, the number of handovers and handover failure increase significantly. Therefore, mobility management becomes an important issue in HetNets. In this research, we analyzed the handover parameters, and proposed a novel handover method for heterogeneous cellular networks to minimize the number of handovers and handover failure. In the proposed method, we considered dual connectivity with control and data plane split and Coordinated Multipoint (CoMP) transmission to optimize the handover parameters. The reduction of handover improves the network performance and the handover failure reduction improves the user experience. The simulation results show that the proposed handover process significantly reduces the number of handovers in heterogeneous cellular networks.

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Section: Background and Related Workmentioning

confidence: 99%

“…They also analyze CoMP schemes and the deployment architectures as well as the benefits and drawbacks of them. In [17,21], we present dynamic coordinator based CoMP control architecture for reducing signaling overhead and feedback latency.…”

Section: Background and Related Workmentioning

confidence: 99%

Handover enhancement for LTE-Advanced and beyond heterogeneous cellular networks

Kazi

Wainer

2017

2017 International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS)

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“…With these issues in mind, in [9,18] we proposed a CoMP control architecture named Direct CSI-feedback to Elected Coordination-station (DCEC), with the aim of reducing the signaling overhead and latency of the CSI feedback, which eventually will increase the throughput of the network. As shown in [19], the throughput of the cell can increase by as much as 20% if the latency is reduced by 5 ms.…”

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confidence: 99%

“…A simplified view of the DCEC architectureTo elect a CCS dynamically we use the following algorithm[18]: 1. A serving BS receives the CSI Feedback from a UE and calculates the CoMP cooperating set.…”

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confidence: 99%

Simulation of Coordinated Multipoint Using Discrete Event Systems Specification

Etemad¹

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With the rise in the number of subscribers and to enhance the user experience, Long Term Evolution Advanced (LTE-A) has introduced Coordinated Multipoint (CoMP), a technology which aims to improve the user experience on the cell edge. Although CoMP improves the user experience on the cell edge, it imposes lots of overhead on the network which may result in the degradation of Quality of Service (QoS). To be able to test technologies like CoMP before deploying them on the live network, Modeling and Simulation (M&S) software are required. Through M&S, researchers can test their proposed ideas with minimal costs. Discrete Event System Specification (DEVS) is a formal platform intended for M&S of discrete time systems.

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“…In this thesis, we present a CoMP coordination architecture named Direct CSI-feedback to Elected Coordination-station (DCEC) [24,25,26], with the aim of reducing the signaling overhead and latency of the CSI feedback, which eventually will increase the throughput of the cellular networks. In this architecture, one of the cooperating eNBs in the CoMP cooperation set, elected dynamically, will act as a coordination station (CS), and the UEs in the same CoMP cooperating set will send the CSI feedback to this CS only.…”

Section: Contributionsmentioning

confidence: 99%

Dynamic Coordination Architecture and Mobility Management for Next Generation Cooperative Cellular Networks

Kazi¹

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The fundamental challenges of existing cellular wireless networks are the exponential demand of mobile data traffic, higher data rates, massive numbers of user-coverage and lower latency. Moreover, the next generation of wireless cellular networks also consider potential use cases, such as autonomous vehicle control, smart cities, remote surgery and eHealth, tactile internet, etc. To address these challenges and potential use cases, network densification such as ultra-dense heterogeneous networks (UDHetNet) and multi-cell cooperation are considered as the foundation to support the 1000× capacity challenge in the next generation wireless cellular networks.In this thesis, we study the coordination architecture and mobility management of multicell cooperative communications and present novel algorithms to improve the performance of multi-cell cooperative cellular networks. We propose DCEC: Direct CSI-feedback to Elected Coordination-station, a CoMP coordination architecture for cooperative communication to improve the performance of cellular networks, reducing the signaling overhead and latency. We extended the DCEC approach to heterogeneous cellular networks named DCEC-HetNet as well. We also propose a handover procedure for heterogeneous multi-cell cooperative cellular networks named EHoLM: Enhanced Handover for Low and Moderate speed UEs. The goal of the EHoLM handover procedure is to improve the system performance and user experience, reducing the number of handovers, handover oscillation and handover failure rate. To examine the performance of the proposed algorithms we use the discrete event system specifications (DEVS) for modeling and simulation of cellular networks employing the DCEC and EHoLM methods.

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Using elected coordination stations for CSI feedback on CoMP downlink transmissions

Cited by 7 publications

References 17 publications

Handover enhancement for LTE-Advanced and beyond heterogeneous cellular networks

Handover enhancement for LTE-Advanced and beyond heterogeneous cellular networks

Simulation of Coordinated Multipoint Using Discrete Event Systems Specification

Dynamic Coordination Architecture and Mobility Management for Next Generation Cooperative Cellular Networks

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