Impact of CQI feedback rate/delay on scheduling video streaming services in LTE downlink

Basukala, Riyaj and Mohd. Ramli, Huda Adibah and Sandrasegaran, Kumbesan and Chen, Lu (2010) Impact of CQI feedback rate/delay on scheduling video streaming services in LTE downlink. In: 2010 IEEE 12th International Conference on Communication Technology (ICCT'2010), 11th-14th Nov. 2010, Nanjing, China.

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Abstract

The major attraction of the next generation wireless systems such as the third generation partnership project (3GPP) Long Term Evolution (LTE) is the availability of high data-rate video services at high user velocities. However, it is quite a challenge to provide the required level of quality of service (QoS) and maintain the planned system performance due to limited radio resources, unreliable radio propagation channel and high user demands. This paper analyses the impact of channel quality indicator (CQI) delay and its aperiodic reporting rate on the performance of a well known scheduling algorithm serving video streaming users at different velocities. The analysis will be compared against the system having perfect and delayed channel knowledge at each scheduling instance. We then recommend the minimum rate requirement of aperiodic CQI reports to maintain the required QoS for a certain number of video streaming users.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	4535/6561
Uncontrolled Keywords:	3GPP Long Term Evolution , CQI feedback rate-delay , LTE downlink , QoS , channel quality indicator delay , high data-rate video services , high user velocities , quality of service , radio propagation channel , radio resources , scheduling video streaming services , third generation partnership project
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication. Including telegraphy, radio, radar, television
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Sr Huda Adibah Mohd Ramli
Date Deposited:	27 Nov 2011 10:09
Last Modified:	15 Aug 2017 16:55
URI:	http://irep.iium.edu.my/id/eprint/6561

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