Impact of power control optimization on the system performance of relay based LTE-Advanced heterogeneous networks

Bulakçı, Ömer; Redana, Simone; Raaf, Bernhard; Hämäläinen, Jyri

doi:10.1109/jcn.2011.6157454

Cited by 33 publications

(55 citation statements)

References 21 publications

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“…RN can also be considered as a special case of the small cell deployment and RNs can be compared with Pico and Femto cells in terms of performance, cost and energy efficiency [156][157][158]. Like small cell, techniques such as interference coordination and range extension [159][160][161][162][163], and power control [164][165][166][167][168] are required for optimising the relaying network.…”

Section: Overviewmentioning

confidence: 99%

LTE-Advanced Radio Access Enhancements: A Survey

Dehghani

Arshad

MacKenzie

2014

Wireless Pers Commun

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Long Term Evolution Advanced (LTE-Advanced) is the next step in LTE evolution and allows operators to improve network performance and service capabilities through smooth deployment of new techniques and technologies. LTE-Advanced uses some new features on top of the existing LTE standards to provide better user experience and higher throughputs. Some of the most significant features introduced in LTE-Advanced are carrier aggregation, enhancements in heterogeneous networks, coordinated multipoint transmission and reception, enhanced Multiple Input Multiple Output (MIMO) usage and deployment of relay nodes in the radio network. Mentioned features are mainly aimed to enhance the radio access part of the cellular networks. This survey article presents an overview of the key radio access features and functionalities of the LTE-Advanced radio access network, supported by the simulation results. We also provide a detailed review of the literature together with a very rich list of the references for each of the features. An LTE-Advanced roadmap and the latest updates and trends in LTE markets are also presented.

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Section: Overviewmentioning

confidence: 99%

LTE-Advanced Radio Access Enhancements: A Survey

Dehghani

Arshad

MacKenzie

2014

Wireless Pers Commun

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“…Simulation results show that the interference coordination improves the system performance in urban scenarios deployments rather than suburban scenarios due to the low received UEs power levels. Reference [26] evaluates the power control scheme proposed in LTE Release 8 standard for a relay based LTE Advanced network. Simulations have shown that the power control increases the cell edge and system capacities and mitigate inter-cell interference.…”

Section: Network (Eg Ims)mentioning

confidence: 99%

LTE Advanced Relaying Standard: A Survey

Zhioua

Labiod

Tabbane³

et al. 2013

Wireless Pers Commun

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Abstract-LTE Advanced is a well designed system that meets the requirements of 4G cellular systems. Its standard specification has been lately released. One of its main features is supporting relaying topology inspired from ad hoc multihop networks. This paper is a survey upon the relaying architecture of LTE Advanced standard based on 3GPP Release 10 specifications. A comparison with other relaying architectures, i.e. IEEE 802.16m and IEEE 802.11s is handled. The originality of this work is in involving comparison with multihop architecture supported by IEEE 802.11s based wireless mesh networks. Several similarities are noted and differences are pointed out.

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“…Since the difference in path loss in a LTE macro cell can easily be in the range of 60 dB, we are forced to control the UE's transmit power in order to guarantee that all signals received at the base station (BS) at the same time are within a certain range. The range of received signal powers at the BS is referred *Correspondence: sascha.berger@tu-dresden.de 1 Vodafone Chair Mobile Communcations Systems, Technische Universität Dresden, 01062 Dresden, Germany Full list of author information is available at the end of the article to as the UL dynamic receive power range (DR) D and is defined as the difference between the 5th and the 95th percentile of the set of receive powers (in dB) of signals that are received at the BS simultaneously [2,3]. The DR at which the weak UEs start to suffer performance degradation 1 depends on the quantization resolution of the ADC and is denoted as the DR threshold D TH .…”

Section: Introductionmentioning

confidence: 99%

“…Bulakci et al consider DR in [2] when optimizing the TPC in a relay-based LTE-advanced heterogeneous network. They avoid DRs above 20 dB, i.e., they set D TH = 20 dB.…”

Section: Introductionmentioning

confidence: 99%

“…In [3], Berger et al derive a closed form expression for DR as a function of LTE's TPC parameters α (the path loss correction factor) and P 0 (a cell/UE specific parameter) and estimate the DR threshold to be in the range from 20 to 50 dB. They derive these numbers by considering the link budget of ADCs with a resolution between 13 bits and 16 bits 2 . However, to the best knowledge of the authors of this work, there is neither an experimental nor a theoretical contribution published that provides a precise value for the DR threshold given a certain ADC.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental evaluation of the uplink dynamic range threshold

Berger

Danneberg

Zanier

et al. 2015

J Wireless Com Network

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Despite the orthogonality of LTE's uplink transmission, it can happen that signals which are received at the base station with low power are drown out by strong signals from other users. Reason is the limited quantization resolution of the base station's analog-to-digital converter. Since this effect causes a quality of service degradation for users at the cell edge, the dynamic receive power range of uplink signals arriving at the base station should be upper limited. However, setting an adequate upper limit for the dynamic receive power range is not trivial since many effects, such as quantization noise, fast fading etc., decrease the dynamic range which the analog-to-digital converter can handle in theory. In this paper, we measure the maximal uplink dynamic receive power range, denoted as uplink dynamic range threshold, for our LTE-like measurement setup by monitoring the uplink bit-error-rate of a first user while decreasing its transmit power during the presence of a second adjacently scheduled user with fixed transmit power. As the measured threshold is 31.4 ± 7.6 dB, we can conclude that a link-budget-based estimation of the dynamic receive power range, which has been published previously, is accurate since its result coincides with the measurement.

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Impact of power control optimization on the system performance of relay based LTE-Advanced heterogeneous networks

Cited by 33 publications

References 21 publications

LTE-Advanced Radio Access Enhancements: A Survey

LTE-Advanced Radio Access Enhancements: A Survey

LTE Advanced Relaying Standard: A Survey

Experimental evaluation of the uplink dynamic range threshold

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