Usage of link-level performance indicators for HSDPA network-level simulations in E-UMTS

Brouwer, Frank; Bruin, Irene de; Silva, J.C.; Souto, Nuno; Cercas, Francisco; Correia, Américo

doi:10.1109/isssta.2004.1371820

Cited by 54 publications

(41 citation statements)

References 1 publication

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“…In [25] SINR-to-CQI mapping is defined for an AWGN channel, and the linear relation between them is determined for a BLER of 0.1. The authors of [26] also performed AWGN simulations to derive the relation between SINR and CQI that is approximated through a linear function. A novel SIR-to-CQI mapping method that satisfies the 3GPP requirements was proposed in [27].…”

Section: Sir-to-cqi Mapping Methodsmentioning

confidence: 99%

“…However, there are no studies on a DC-HSDPA system. Moreover, the studies [25][26][27][28][29] given in Table 1 investigated the SIR-to-CQI mapping methods for AWGN and ITU test channels; so far there have not been any assessments based on real field measurements. This study aims to propose a novel SIR-to-CQI mapping method that represents the exact DC-HSDPA service environment based on real field measurements.…”

Section: Sir-to-cqi Mapping Methodsmentioning

confidence: 99%

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A novel empirical SIR-to-CQI mapping rule for DC-HSDPA systems

Kurnaz¹,

Engiz²,

Esenalp³

2017

Turk J Elec Eng & Comp Sci

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Abstract:This study aims to determine the mapping rule for signal-to-interference ratio (SIR) to channel quality indicator (CQI) based on DC-HSDPA real field measurements. The measurements were performed using the TEMS Investigation Tool at 85 different propagation mediums. The measurement results showed that the SIR-to-CQI mapping methods in the literature were insufficient to characterize actual radio environments; thus, proposal of a new empirical SIR-to-CQI mapping rule was aimed. This rule provides substantially better performance than the existing methods, and with this rule CQI can be generated from SIR with an accuracy of around 90% for DC-HSDPA systems.

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Section: Sir-to-cqi Mapping Methodsmentioning

confidence: 99%

Section: Sir-to-cqi Mapping Methodsmentioning

confidence: 99%

A novel empirical SIR-to-CQI mapping rule for DC-HSDPA systems

Kurnaz¹,

Engiz²,

Esenalp³

2017

Turk J Elec Eng & Comp Sci

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“…The CQI reported on the uplink can be approximated using the SINR (γ) at the UE for the required BLER as [23]:…”

Section: Coverage Modelmentioning

confidence: 99%

A Traffic Aware Energy Saving Scheme for Multicarrier HSPA+

Jada

García-Lozano

Hämäläinen

2015

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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Abstract. In the near future, an increase in cellular network density is expected to be one of the main enablers for the newly introduced challenging capacity goals. This development will lead to an increase in the network energy consumption. In this context, we propose an energy efficient dynamic scheme for HSDPA+ (High Speed Downlink Packet Access-Advanced) systems aggregating several carriers. In the proposed scheme the network adapts dynamically to the network traffic. The scheme evaluates whether node-B deactivation is feasible without compromising the user flow throughput. Furthermore, instead of progressive de-activation of carriers and/or node-B switch-off, we evaluate the approach where feasible combination of inter-site distance and number of carriers is searched to obtain best savings. The solution exploits the fact that re-activation of carriers might permit turning off the BSs earlier at relatively higher load than existing policies, which provides the highest energy saving. Remote electrical downtilt is also considered as a means to reduce the utilization of lower modulation and coding schemes (MCS) in the new extended cells. This approach promises significant energy savings when compared with existing policies -not only for low traffic hours but also for medium load scenarios.

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“…According to [11,12,14], the mapping between q i andγ i can generally be expressed as a piece-wise linear function…”

Section: System Domainmentioning

confidence: 99%

A hybrid swarm intelligence algorithm for multiuser scheduling in HSDPA

Aydın¹,

Kwan²,

Leung³

et al. 2013

Applied Soft Computing

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Abstract. Multiuser scheduling is an important aspect in the performance optimization of a wireless network since it allows multiple users to access a shared channel efficiently by exploiting multiuser diversity. To perform efficient scheduling, channel state information (CSI) for users is required, and is obtained via their respective feedback channels. In this paper, a more realistic imperfect CSI feedback, in the form of a finite set of Channel Quality Indicator (CQI) values, is assumed as specified in the HSDPA standard. A mathematical model of the problem is developed for use in the optimization process. A hybrid heuristic approach based on particle swarm optimization and simulated annealing is used to solve the problem. Simulation results indicate that the hybrid approach outperforms individual implementations of both simulated annealing and particle swarm optimisation.

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Usage of link-level performance indicators for HSDPA network-level simulations in E-UMTS

Abstract: The integration of the link-level and network-level simulators described in this paper give accurate and realistic results that can next be used in more studies that focus on network layer aspects of packet based services over HSDPA.

Cited by 54 publications

References 1 publication

A novel empirical SIR-to-CQI mapping rule for DC-HSDPA systems

A novel empirical SIR-to-CQI mapping rule for DC-HSDPA systems

A Traffic Aware Energy Saving Scheme for Multicarrier HSPA+

A hybrid swarm intelligence algorithm for multiuser scheduling in HSDPA

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