Analysis of the effects of CQI feedback for LTE networks on ns-3

Author

Torres, H. Juan G. ; Roberto, Bustamante M.

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. de los Andes, Bogota, Colombia

fYear

2014

fDate

5-7 Nov. 2014

Firstpage

1

Lastpage

6

Abstract

The main aim of this paper is to analyze the effects of periodic and aperiodic CQI Feedback (Channel Quality Indicator) on the QoS (Quality of Service) for LTE (Long Term Evolution) networks, using the simulator ns-3. We analyze how the QoS parameters change when more devices are aggregated to the base station and the scheduler allocates optimal radio resources for each user. In this scenario, the QoS depends on the type of CQI Feedback configured to estimate the quality of channel. The QoS can be modified according to the QCI, that identifies each transmission per TTI (Transmit Time Interval).

Keywords

Long Term Evolution; channel estimation; quality of service; resource allocation; telecommunication scheduling; LTE networks; Long Term Evolution networks; QoS; TTI; aperiodic CQI Feedback; base station; channel quality estimation; channel quality indicator; ns-3 simulator; optimal radio resources; quality of service; scheduler; transmit time interval; Bandwidth; Base stations; Downlink; Long Term Evolution; Mobile communication; Quality of service; Uplink; CQI feedback; LTE; OFDMA; QCI; QoS; VoIP; ns-3;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (LATINCOM), 2014 IEEE Latin-America Conference on

Conference_Location

Cartagena de Indias

Print_ISBN

978-1-4799-6737-7

Type

conf

DOI

10.1109/LATINCOM.2014.7041846

Filename

7041846