An adaptive threshold based CQI compression scheme for LTE cellular networks
The frequency domain scheduling gain can be maximized when precise channel information is available at the eNodeB for the whole bandwidth. To compensate for the continuous variations of channel conditions in time and frequency domains, a huge undesirable amount of signaling overhead is required to r...
| Автори: | , , , , , |
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| Формат: | Conference or Workshop Item |
| Мова: | English |
| Опубліковано: |
Asia-Pacific Advanced Network
2015
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| Онлайн доступ: | http://psasir.upm.edu.my/id/eprint/52587/1/An%20adaptive%20threshold%20based%20CQI%20compression%20scheme%20for%20LTE%20cellular%20networks.pdf |
| _version_ | 1825930754284060672 |
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| author | Salman, Mustafa Ismael Abdulhasan, Muntadher Qasim Noordin, Nor Kamariah Mohd Ali, Borhanuddin Sali, Aduwati Ng, Chee Kyun |
| author_facet | Salman, Mustafa Ismael Abdulhasan, Muntadher Qasim Noordin, Nor Kamariah Mohd Ali, Borhanuddin Sali, Aduwati Ng, Chee Kyun |
| author_sort | Salman, Mustafa Ismael |
| collection | UPM |
| description | The frequency domain scheduling gain can be maximized when precise channel information is available at the eNodeB for the whole bandwidth. To compensate for the continuous variations of channel conditions in time and frequency domains, a huge undesirable amount of signaling overhead is required to report the channel quality indicator (CQI). On the contrary, partial channel state information detriments the downlink performances and does not guarantee the quality-of-service (QoS) when real-time multimedia services are applied. Thus, in this paper, the impact of CQI signaling overhead on the downlink performances is formulated. Then, an adaptive signal-to-interference-plus-noise ratio (SINR) threshold based CQI scheme is proposed by using multi-objective swarm intelligence to find the optimal feedback threshold. Based on an LTE system-level simulation, significant enhancements of 20% and 38% in throughput and packet loss ratio (PLR) respectively are obtained compared to a fixed threshold feedback with reasonable cost of feedback overhead. The proposed algorithm provides a high flexibility in responding to certain variations without complex modifications. |
| first_indexed | 2024-03-06T09:16:22Z |
| format | Conference or Workshop Item |
| id | upm.eprints-52587 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:16:22Z |
| publishDate | 2015 |
| publisher | Asia-Pacific Advanced Network |
| record_format | dspace |
| spelling | upm.eprints-525872017-06-07T03:58:06Z http://psasir.upm.edu.my/id/eprint/52587/ An adaptive threshold based CQI compression scheme for LTE cellular networks Salman, Mustafa Ismael Abdulhasan, Muntadher Qasim Noordin, Nor Kamariah Mohd Ali, Borhanuddin Sali, Aduwati Ng, Chee Kyun The frequency domain scheduling gain can be maximized when precise channel information is available at the eNodeB for the whole bandwidth. To compensate for the continuous variations of channel conditions in time and frequency domains, a huge undesirable amount of signaling overhead is required to report the channel quality indicator (CQI). On the contrary, partial channel state information detriments the downlink performances and does not guarantee the quality-of-service (QoS) when real-time multimedia services are applied. Thus, in this paper, the impact of CQI signaling overhead on the downlink performances is formulated. Then, an adaptive signal-to-interference-plus-noise ratio (SINR) threshold based CQI scheme is proposed by using multi-objective swarm intelligence to find the optimal feedback threshold. Based on an LTE system-level simulation, significant enhancements of 20% and 38% in throughput and packet loss ratio (PLR) respectively are obtained compared to a fixed threshold feedback with reasonable cost of feedback overhead. The proposed algorithm provides a high flexibility in responding to certain variations without complex modifications. Asia-Pacific Advanced Network 2015 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/52587/1/An%20adaptive%20threshold%20based%20CQI%20compression%20scheme%20for%20LTE%20cellular%20networks.pdf Salman, Mustafa Ismael and Abdulhasan, Muntadher Qasim and Noordin, Nor Kamariah and Mohd Ali, Borhanuddin and Sali, Aduwati and Ng, Chee Kyun (2015) An adaptive threshold based CQI compression scheme for LTE cellular networks. In: 40th Meeting of the Asia-Pacific Advanced Network, 10-14 Aug. 2015, University of Malaya, Kuala Lumpur. (pp. 85-90). http://journals.sfu.ca/apan/index.php/apan/article/view/155 10.7125/40.13 |
| spellingShingle | Salman, Mustafa Ismael Abdulhasan, Muntadher Qasim Noordin, Nor Kamariah Mohd Ali, Borhanuddin Sali, Aduwati Ng, Chee Kyun An adaptive threshold based CQI compression scheme for LTE cellular networks |
| title | An adaptive threshold based CQI compression scheme for LTE cellular networks |
| title_full | An adaptive threshold based CQI compression scheme for LTE cellular networks |
| title_fullStr | An adaptive threshold based CQI compression scheme for LTE cellular networks |
| title_full_unstemmed | An adaptive threshold based CQI compression scheme for LTE cellular networks |
| title_short | An adaptive threshold based CQI compression scheme for LTE cellular networks |
| title_sort | adaptive threshold based cqi compression scheme for lte cellular networks |
| url | http://psasir.upm.edu.my/id/eprint/52587/1/An%20adaptive%20threshold%20based%20CQI%20compression%20scheme%20for%20LTE%20cellular%20networks.pdf |
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