A threshold feedback compression scheme of channel quality indicator (CQI) in LTE systems
The channel quality indicator (CQI) feedback is an essential technique in describing channel state information, especially at high-speed mobility for LTE and LTE-A systems. The number of reported CQI feedback increases when a large number of users are served by eNodeB. However, this feedback inevita...
| Main Authors: | , , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IEEE
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/68182/1/A%20threshold%20feedback%20compression%20scheme%20of%20channel%20quality%20indicator%20%28CQI%29%20in%20LTE%20systems.pdf |
| _version_ | 1825933476349607936 |
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| author | Abdulhasan, Muntadher Qasim Salman, Mustafa Ismael Ng, Chee Kyun Noordin, Nor Kamariah Hashim, Shaiful Jahari Hashim, Fazirulhisyam |
| author_facet | Abdulhasan, Muntadher Qasim Salman, Mustafa Ismael Ng, Chee Kyun Noordin, Nor Kamariah Hashim, Shaiful Jahari Hashim, Fazirulhisyam |
| author_sort | Abdulhasan, Muntadher Qasim |
| collection | UPM |
| description | The channel quality indicator (CQI) feedback is an essential technique in describing channel state information, especially at high-speed mobility for LTE and LTE-A systems. The number of reported CQI feedback increases when a large number of users are served by eNodeB. However, this feedback inevitably entails uses and can lead to severe degradation in system throughput. Therefore, an appropriate method for reducing CQI feedback overhead must be developed. In this paper, the system throughput and bit error rate (BER) are investigated by using a threshold feedback compression scheme of CQI at low and high user speeds. Results show that the system throughput proportionally increases with the threshold values at the cost of BER. Therefore, a high threshold level is recommended under high user speed conditions to improve the tradeoff between BER and throughput. In contrast, a low threshold level is targeted to provide reliable transmission when the network is fully loaded and the user is in a bad channel state. |
| first_indexed | 2024-03-06T09:57:51Z |
| format | Conference or Workshop Item |
| id | upm.eprints-68182 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:57:51Z |
| publishDate | 2013 |
| publisher | IEEE |
| record_format | dspace |
| spelling | upm.eprints-681822019-05-09T03:37:37Z http://psasir.upm.edu.my/id/eprint/68182/ A threshold feedback compression scheme of channel quality indicator (CQI) in LTE systems Abdulhasan, Muntadher Qasim Salman, Mustafa Ismael Ng, Chee Kyun Noordin, Nor Kamariah Hashim, Shaiful Jahari Hashim, Fazirulhisyam The channel quality indicator (CQI) feedback is an essential technique in describing channel state information, especially at high-speed mobility for LTE and LTE-A systems. The number of reported CQI feedback increases when a large number of users are served by eNodeB. However, this feedback inevitably entails uses and can lead to severe degradation in system throughput. Therefore, an appropriate method for reducing CQI feedback overhead must be developed. In this paper, the system throughput and bit error rate (BER) are investigated by using a threshold feedback compression scheme of CQI at low and high user speeds. Results show that the system throughput proportionally increases with the threshold values at the cost of BER. Therefore, a high threshold level is recommended under high user speed conditions to improve the tradeoff between BER and throughput. In contrast, a low threshold level is targeted to provide reliable transmission when the network is fully loaded and the user is in a bad channel state. IEEE 2013 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/68182/1/A%20threshold%20feedback%20compression%20scheme%20of%20channel%20quality%20indicator%20%28CQI%29%20in%20LTE%20systems.pdf Abdulhasan, Muntadher Qasim and Salman, Mustafa Ismael and Ng, Chee Kyun and Noordin, Nor Kamariah and Hashim, Shaiful Jahari and Hashim, Fazirulhisyam (2013) A threshold feedback compression scheme of channel quality indicator (CQI) in LTE systems. In: 2013 IEEE Student Conference on Research and Development (SCOReD), 16-17 Dec. 2013, Putrajaya, Malaysia. (pp. 181-186). 10.1109/SCOReD.2013.7002567 |
| spellingShingle | Abdulhasan, Muntadher Qasim Salman, Mustafa Ismael Ng, Chee Kyun Noordin, Nor Kamariah Hashim, Shaiful Jahari Hashim, Fazirulhisyam A threshold feedback compression scheme of channel quality indicator (CQI) in LTE systems |
| title | A threshold feedback compression scheme of channel quality indicator (CQI) in LTE systems |
| title_full | A threshold feedback compression scheme of channel quality indicator (CQI) in LTE systems |
| title_fullStr | A threshold feedback compression scheme of channel quality indicator (CQI) in LTE systems |
| title_full_unstemmed | A threshold feedback compression scheme of channel quality indicator (CQI) in LTE systems |
| title_short | A threshold feedback compression scheme of channel quality indicator (CQI) in LTE systems |
| title_sort | threshold feedback compression scheme of channel quality indicator cqi in lte systems |
| url | http://psasir.upm.edu.my/id/eprint/68182/1/A%20threshold%20feedback%20compression%20scheme%20of%20channel%20quality%20indicator%20%28CQI%29%20in%20LTE%20systems.pdf |
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