LTE-advanced downlink throughput evaluation in the 3G and TV white space bands

Ameen, Araz Sabir; Mellios, Evangelos; Doufexi, Angela; Dahnoun, Naim; Nix, Andrew R

doi:10.1109/pimrc.2013.6666240

Cited by 11 publications

(11 citation statements)

References 9 publications

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“…As seen in the figure, excellent agreement is observed between the link layer simulator and RBIR abstraction curves. Similar verification has been performed for LTE-A in [11]. For both the mmWave and LTE-A cellular systems, the 3D complex field antenna patterns as shown in Fig.…”

Section: Link Level Abstraction Techsupporting

confidence: 53%

Channel Parameters and Throughput Predictions for mmWave and LTE-A Networks in Urban Environments

Abdullah

Berraki

Ameen

et al. 2015

2015 IEEE 81st Vehicular Technology Conference (VTC Spring)

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Spectrum shortage in the conventional microwave bands coupled with the need for multi-gigabit per-cell capacities has motivated the use of the mmWave bands in future 5G networks. In this paper 3D ray tracing is used to derive key statistical parameters for the mmWave channel. These include path loss, LoS probability, K-factor, RMS delay spread and angular spreads. The mmWave parameters are directly compared to the microwave channel present in LTE-A. Cellular deployment in both bands is then simulated for a 500 m by 500 m regqasion of central Bristol. The impact of different antenna geometries is also studied. Due to the trade-offs between the number of required BSs and the cost of network deployment, we propose a converged mmWave/microwave network for improved user experience.Index Terms-MmWave, LTE-A, ray tracing, 5G, beamforming.

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Section: Link Level Abstraction Techsupporting

confidence: 53%

Channel Parameters and Throughput Predictions for mmWave and LTE-A Networks in Urban Environments

Abdullah

Berraki

Ameen

et al. 2015

2015 IEEE 81st Vehicular Technology Conference (VTC Spring)

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“…Several abstraction models are available for OFDM based wireless communication systems. An RBIR abstraction model for WiMAX IEEE 802.16m WLAN system is developed in [5], and for LTE-Advanced downlink in [6]. Examples of abstract simulation models for MIMO-OFDM system without considering a specific communication standard includes the model of [7] which calculates the Minimum Mean Square Error (MMSE) iteratively at the receiver with Soft Interference Cancelation (SIC) and the model of [8] for maximum likelihood detector.…”

Section: Introductionmentioning

confidence: 99%

“…We evaluate the performance at carrier frequencies of 2600 MHz and 800 MHz to model bands 7 and 20 of CA_7-20 respectively. The RBIR abstraction technique proposed in [6]…”

Section: Introductionmentioning

confidence: 99%

System Level Study of LTE-Advanced Multiple Antenna System with Inter-Band Carrier Aggregation

Abdalla

Mohammed

2018

KJAR

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Spatial Multiplexing (SM) multiple antenna systems and Carrier Aggregation (CA) are techniques introduced in Long Term Evolution- Advanced (LTE−Advanced) to support high data rates by increasing the number of transmission paths and the available bandwidth respectively. Therefore, in this study we evaluate the performance of LTE-Advanced physical downlink shared channel for single and SM multiple antenna systems in two different frequency bands. The radio channel is modelled using an enhanced Three-Dimensional (3D) international telecommunication union-radio communication sector channel model integrated with base station and user mobile 3D antenna patterns. Except the total received power, similar channel statistics are observed for both frequency bands. The study is performed considering 1x1, 2x2, 4x4 antenna systems in a macro-cell urban environment at Component Carries (CC) of 2600 MHz and 800 MHz to model bands 7 and 20 of CA_7-20 respectively. The performance is evaluated in terms of throughput and SM gain for many base stations and user positions considering various modulation and coding schemes. We used the computationally efficient received bit information rate algorithm to compute the throughput as a function of channel structure and signal to noise ratio. As expected higher throughput is observed for the 800 MHz band over the 2600 MHz band. This is due to the higher total received power of the 800 MHz band. The novel SM gain results show that the SM gain depends on the operating band and it’s less than the number of spatial links. Moreover, the efficiency of inter-band CA in increasing the data rates is a function cell radius and the number of spatial streams.

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“…E-UTRA low frequency operating bands 5,8,12,13,14,17,18,19,20, are considered attractive bands due to their enhanced propagation characteristics. In order to meet the increasing demand for mobile communication services with increasing number of users, the IEEE WiMAX system has proposed a set of promising technologies, e.g., enhanced MIMO and carrier aggregation (CA) that can provide higher spectral efficiency and reliable transmission [2].…”

Section: Introductionmentioning

confidence: 99%

Application of 3D Ray Tracer in WiMAX

Wang¹

2017

Proceedings of the 2017 International Conference on Mechanical, Electronic, Control and Automation Engineering (MECAE 2017)

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Abstract. WiMAX is a promising technology for a higher spectral efficiency and reliable transmission. This paper compares the downlink throughput experienced by mobile users in a macro-cell in an interference limited scenario with a frequency reuse of one. Bit accurate link level simulations are performed for the downlink physical shared channel (PDSCH). The study is performed for a single antenna system in specific routes at two different carrier frequencies (800 MHz and 2.6 GHz), for two urban environments in the China, and two cell sizes. The paper also considers the carrier aggregation technique which has been proposed since it is difficult to ensure a single wide frequency band for operators. A state-of-the-art 3D ray tracer tool is used to generate 3D channel models for accurate modelling of channel statistics. The study shows that the 800 MHz band has no greater effect on the downlink throughput as compared to 2.6 GHz band, which leads to no additional advantages of inter-band aggregation (considering 800 MHz) compared to intra-band aggregation. It is also observed that a range of speeds can be handled while maintaining good performance in WiMAX. We have clearly shown that the choice of cell size by mobile operators for optimum coverage depends mainly on the propagation characteristic of the environment.

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LTE-advanced downlink throughput evaluation in the 3G and TV white space bands

Cited by 11 publications

References 9 publications

Channel Parameters and Throughput Predictions for mmWave and LTE-A Networks in Urban Environments

Channel Parameters and Throughput Predictions for mmWave and LTE-A Networks in Urban Environments

System Level Study of LTE-Advanced Multiple Antenna System with Inter-Band Carrier Aggregation

Application of 3D Ray Tracer in WiMAX

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