Impact of Feedback Channel Delay over Joint User Scheduling Scheme and Separated Random User Scheduling Scheme in LTE-A System with Carrier Aggregation
Joint Authors
Nordin, Rosdiadee
Ali, Ahmed A.
Abdullah, Huda
Ismail, Mahamod
Source
Journal of Computer Networks and Communications
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-12
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Information Technology and Computer Science
Abstract EN
In Long Term Evolution-Advanced (LTE-A), the signal quality in a wireless channel is estimated based on the channel quality measurements.
The measurement results are used to select suitable modulation and coding scheme for each transmission, feedback, and processing delay, which can cause a mismatch between channel quality information (CQI) and current channel state at the base station.
However, prospect delays in the reception of such CQI may lead to a system performance degradation.
This study analyzes the impact of CQI feedback delay on joint user scheduling (JUS) scheme and separated random user scheduling (SRUS) scheme in LTE-A system over carrier aggregation.
The analysis will be compared with the system having delayed channel and perfect knowledge at different deployment scenario.
We will study the throughput performance of both scheduling schemes with different deployment scenario, and then recommend the suitable deployment scenario to keep the desired QoS for a specific number of users.
Results show that, in main beam directed at sector boundaries and diverse coverage, JUS scheme performs better than SRUS, which can justify the intensive use of user equipment power and extra control signaling overhead.
American Psychological Association (APA)
Ali, Ahmed A.& Nordin, Rosdiadee& Ismail, Mahamod& Abdullah, Huda. 2014. Impact of Feedback Channel Delay over Joint User Scheduling Scheme and Separated Random User Scheduling Scheme in LTE-A System with Carrier Aggregation. Journal of Computer Networks and Communications،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1040180
Modern Language Association (MLA)
Ali, Ahmed A.…[et al.]. Impact of Feedback Channel Delay over Joint User Scheduling Scheme and Separated Random User Scheduling Scheme in LTE-A System with Carrier Aggregation. Journal of Computer Networks and Communications No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1040180
American Medical Association (AMA)
Ali, Ahmed A.& Nordin, Rosdiadee& Ismail, Mahamod& Abdullah, Huda. Impact of Feedback Channel Delay over Joint User Scheduling Scheme and Separated Random User Scheduling Scheme in LTE-A System with Carrier Aggregation. Journal of Computer Networks and Communications. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1040180
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1040180