Feedback Compression Schemes for Downlink Carrier Aggregation in LTE-Advanced

Hung Tuan Nguyen; Istvan Kovac; Yuanye Wang; Klaus Pedersen

doi:10.1109/VETECF.2011.6093213

Feedback Compression Schemes for Downlink Carrier Aggregation in LTE-Advanced

Hung Tuan Nguyen, Istvan Kovac, Yuanye Wang, Klaus Pedersen

Institut for Elektroniske Systemer

Publikation: Bidrag til tidsskrift › Konferenceartikel i tidsskrift › Forskning › peer review

6 Citationer (Scopus)

1430 Downloads (Pure)

Abstrakt

With full channel state information (CSI) available, it has been shown that carrier aggregation (CA) in the downlink can significantly improve the data rate experienced at the user equipments (UE) [1], [2], [3], [4]. However, full CSI feedback in all component carriers (CCs) requires a large portion of the uplink
bandwidth and the feedback information increases linearly with the number of CCs. Therefore, the performance gain brought by deploying CA could be easily hindered if the amount of CSI feedback is not thoroughly controlled. In this paper we analyze several feedback overhead compression schemes in CA systems. To avoid a major re-design of the feedback schemes, only CSI compression schemes closely related to the ones specified in LTE-Release 8 and LTE-Release 9 are considered. Extensive simulations at system level were carried out to evaluate the performance of these feedback schemes in various traffic load
conditions. Different scenarios were considered to answer the questions of when and why these CSI feedback compression schemes can be applied in CA

Originalsprog	Engelsk
Tidsskrift	I E E E V T S Vehicular Technology Conference. Proceedings
ISSN	1550-2252
DOI	https://doi.org/10.1109/VETECF.2011.6093213
Status	Udgivet - 2011
Begivenhed	2011 IEEE 74th Vehicular Technology Conference: VTC2011-Fall - San Francisco, USA Varighed: 5 sep. 2011 → 8 sep. 2011 Konferencens nummer: 74

Konference

Konference	2011 IEEE 74th Vehicular Technology Conference
Nummer	74
Land/Område	USA
By	San Francisco
Periode	05/09/2011 → 08/09/2011

Adgang til dokumentet

10.1109/VETECF.2011.6093213

Feedback Compression Schemes for Downlink Carrier Aggregation in LTE AdvancedAccepteret manuskript, 204 KB

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6093213

AUB Link

Søg efter materialet i Aalborg Universitetsbiblioteks søgemaskine

SAMURAI: Spectrum Aggregation and Multi-User MIMO: ReAl-world Impact: SAMURAI - EU ID: FP7-INFSO-ICT-248268
Sørensen, T. B., Cattoni, A. F., Nguyen, H. T., Tonelli, O., Deneire, L. & Berardinelli, G.
<ingen navn>
01/01/2010 → 30/06/2012
Projekter: Projekt › Forskning

Citationsformater

@inproceedings{4122fef1ae7d4ed59151a96e4defe264,

title = "Feedback Compression Schemes for Downlink Carrier Aggregation in LTE-Advanced",

abstract = "With full channel state information (CSI) available, it has been shown that carrier aggregation (CA) in the downlink can significantly improve the data rate experienced at the user equipments (UE) [1], [2], [3], [4]. However, full CSI feedback in all component carriers (CCs) requires a large portion of the uplinkbandwidth and the feedback information increases linearly with the number of CCs. Therefore, the performance gain brought by deploying CA could be easily hindered if the amount of CSI feedback is not thoroughly controlled. In this paper we analyze several feedback overhead compression schemes in CA systems. To avoid a major re-design of the feedback schemes, only CSI compression schemes closely related to the ones specified in LTE-Release 8 and LTE-Release 9 are considered. Extensive simulations at system level were carried out to evaluate the performance of these feedback schemes in various traffic loadconditions. Different scenarios were considered to answer the questions of when and why these CSI feedback compression schemes can be applied in CA",

author = "Nguyen, {Hung Tuan} and Istvan Kovac and Yuanye Wang and Klaus Pedersen",

year = "2011",

doi = "10.1109/VETECF.2011.6093213",

language = "English",

journal = "I E E E V T S Vehicular Technology Conference. Proceedings",

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TY - GEN

T1 - Feedback Compression Schemes for Downlink Carrier Aggregation in LTE-Advanced

AU - Nguyen, Hung Tuan

AU - Kovac, Istvan

AU - Wang, Yuanye

AU - Pedersen, Klaus

N1 - Conference code: 74

PY - 2011

Y1 - 2011

N2 - With full channel state information (CSI) available, it has been shown that carrier aggregation (CA) in the downlink can significantly improve the data rate experienced at the user equipments (UE) [1], [2], [3], [4]. However, full CSI feedback in all component carriers (CCs) requires a large portion of the uplinkbandwidth and the feedback information increases linearly with the number of CCs. Therefore, the performance gain brought by deploying CA could be easily hindered if the amount of CSI feedback is not thoroughly controlled. In this paper we analyze several feedback overhead compression schemes in CA systems. To avoid a major re-design of the feedback schemes, only CSI compression schemes closely related to the ones specified in LTE-Release 8 and LTE-Release 9 are considered. Extensive simulations at system level were carried out to evaluate the performance of these feedback schemes in various traffic loadconditions. Different scenarios were considered to answer the questions of when and why these CSI feedback compression schemes can be applied in CA

AB - With full channel state information (CSI) available, it has been shown that carrier aggregation (CA) in the downlink can significantly improve the data rate experienced at the user equipments (UE) [1], [2], [3], [4]. However, full CSI feedback in all component carriers (CCs) requires a large portion of the uplinkbandwidth and the feedback information increases linearly with the number of CCs. Therefore, the performance gain brought by deploying CA could be easily hindered if the amount of CSI feedback is not thoroughly controlled. In this paper we analyze several feedback overhead compression schemes in CA systems. To avoid a major re-design of the feedback schemes, only CSI compression schemes closely related to the ones specified in LTE-Release 8 and LTE-Release 9 are considered. Extensive simulations at system level were carried out to evaluate the performance of these feedback schemes in various traffic loadconditions. Different scenarios were considered to answer the questions of when and why these CSI feedback compression schemes can be applied in CA

U2 - 10.1109/VETECF.2011.6093213

DO - 10.1109/VETECF.2011.6093213

M3 - Conference article in Journal

SN - 1550-2252

JO - I E E E V T S Vehicular Technology Conference. Proceedings

JF - I E E E V T S Vehicular Technology Conference. Proceedings

T2 - VTC Fall 2011

Y2 - 5 September 2011 through 8 September 2011

ER -

Feedback Compression Schemes for Downlink Carrier Aggregation in LTE-Advanced

Abstrakt

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AUB Link

Fingeraftryk

SAMURAI: <strong>S</strong>pectrum <strong>A</strong>ggregation and <strong>M</strong>ulti-<strong>U</strong>ser MIMO: <strong>R</strong>e<strong>A</strong>l-world <strong>I</strong>mpact: <strong>SAMURAI - EU ID: FP7-INFSO-ICT-248268</strong>

Citationsformater

Feedback Compression Schemes for Downlink Carrier Aggregation in LTE-Advanced

Abstrakt

Konference

Adgang til dokumentet

AUB Link

Fingeraftryk

Projekter

SAMURAI: <strong>S</strong>pectrum <strong>A</strong>ggregation and <strong>M</strong>ulti-<strong>U</strong>ser MIMO: <strong>R</strong>e<strong>A</strong>l-world <strong>I</strong>mpact: <strong>SAMURAI - EU ID: FP7-INFSO-ICT-248268</strong>

Citationsformater