Low-Bandwidth Channel Quality Indication for OFDMA Frequency Domain Packet Scheduling

Troels E. Kolding; Frank Frederiksen; Akhilesh Pokhariyal

doi:10.1109/ISWCS.2006.4362304

Low-Bandwidth Channel Quality Indication for OFDMA Frequency Domain Packet Scheduling

Troels E. Kolding, Frank Frederiksen, Akhilesh Pokhariyal

Institut for Elektroniske Systemer

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

23 Citationer (Scopus)

Abstract

In this paper, we study methods for lowering the bandwidth needed for the UE to transmit channel quality indication (CQI) for time and frequency domain scheduling (FDPS) in OFDMA. We consider smart compression methods, such as threshold based indication, to only include scheduler-relevant information in the CQI. We find that a 60-70% CQI bandwidth reduction is possible with less than 5-10% impact on scheduling performance. Further, we consider the impact of lowering the CQI reporting rate on both mobility performance and increased measuring accuracy due to longer averaging interval. We find that FDPS can provide around 30-45% gain for the UTRAN long-term evolution (aka 3.9G) with a CQI reporting bandwidth as low as 10 kbit/s in a 20MHz system (3-10 km/h).

Originalsprog	Engelsk
Titel	3rd International Symposium on Wireless Communication Systems, 2006. ISWCS '06.
Forlag	Electrical Engineering/Electronics, Computer, Communications and Information Technology Association
Publikationsdato	2007
Sider	282-286
ISBN (Trykt)	978-1-4244-0398-1
DOI	https://doi.org/10.1109/ISWCS.2006.4362304
Status	Udgivet - 2007
Begivenhed	International Symposium on Wireless Communication Systems (ISWCS) 2006 - Valencia, Spanien Varighed: 5 sep. 2006 → 8 sep. 2006

Konference

Konference	International Symposium on Wireless Communication Systems (ISWCS) 2006
Land/Område	Spanien
By	Valencia
Periode	05/09/2006 → 08/09/2006

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10.1109/ISWCS.2006.4362304

http://ieeexplore.ieee.org/search/srchabstract.jsp?arnumber=4362304&isnumber=4362243&punumber=4362242&k2dockey=4362304@ieeecnfs&query=%28%28kolding%29%3Cin%3Emetadata%29&pos=7

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Citationsformater

Kolding, T. E., Frederiksen, F., & Pokhariyal, A. (2007). Low-Bandwidth Channel Quality Indication for OFDMA Frequency Domain Packet Scheduling. I 3rd International Symposium on Wireless Communication Systems, 2006. ISWCS '06. (s. 282-286). Electrical Engineering/Electronics, Computer, Communications and Information Technology Association. https://doi.org/10.1109/ISWCS.2006.4362304

@inproceedings{2c8eee70a6f311dbb8eb000ea68e967b,

title = "Low-Bandwidth Channel Quality Indication for OFDMA Frequency Domain Packet Scheduling",

abstract = " In this paper, we study methods for lowering the bandwidth needed for the UE to transmit channel quality indication (CQI) for time and frequency domain scheduling (FDPS) in OFDMA. We consider smart compression methods, such as threshold based indication, to only include scheduler-relevant information in the CQI. We find that a 60-70% CQI bandwidth reduction is possible with less than 5-10% impact on scheduling performance. Further, we consider the impact of lowering the CQI reporting rate on both mobility performance and increased measuring accuracy due to longer averaging interval. We find that FDPS can provide around 30-45% gain for the UTRAN long-term evolution (aka 3.9G) with a CQI reporting bandwidth as low as 10 kbit/s in a 20MHz system (3-10 km/h).",

keywords = "CQI signalling, packet scheduling, LTE",

author = "Kolding, {Troels E.} and Frank Frederiksen and Akhilesh Pokhariyal",

year = "2007",

doi = "10.1109/ISWCS.2006.4362304",

language = "English",

isbn = "978-1-4244-0398-1",

pages = "282--286",

booktitle = "3rd International Symposium on Wireless Communication Systems, 2006. ISWCS '06.",

publisher = "Electrical Engineering/Electronics, Computer, Communications and Information Technology Association",

note = "International Symposium on Wireless Communication Systems (ISWCS) 2006 ; Conference date: 05-09-2006 Through 08-09-2006",

}

Kolding, TE, Frederiksen, F & Pokhariyal, A 2007, Low-Bandwidth Channel Quality Indication for OFDMA Frequency Domain Packet Scheduling. i 3rd International Symposium on Wireless Communication Systems, 2006. ISWCS '06.. Electrical Engineering/Electronics, Computer, Communications and Information Technology Association, s. 282-286, International Symposium on Wireless Communication Systems (ISWCS) 2006, Valencia, Spanien, 05/09/2006. https://doi.org/10.1109/ISWCS.2006.4362304

Low-Bandwidth Channel Quality Indication for OFDMA Frequency Domain Packet Scheduling. / Kolding, Troels E.; Frederiksen, Frank; Pokhariyal, Akhilesh.
3rd International Symposium on Wireless Communication Systems, 2006. ISWCS '06.. Electrical Engineering/Electronics, Computer, Communications and Information Technology Association, 2007. s. 282-286.

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

TY - GEN

T1 - Low-Bandwidth Channel Quality Indication for OFDMA Frequency Domain Packet Scheduling

AU - Kolding, Troels E.

AU - Frederiksen, Frank

AU - Pokhariyal, Akhilesh

PY - 2007

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N2 - In this paper, we study methods for lowering the bandwidth needed for the UE to transmit channel quality indication (CQI) for time and frequency domain scheduling (FDPS) in OFDMA. We consider smart compression methods, such as threshold based indication, to only include scheduler-relevant information in the CQI. We find that a 60-70% CQI bandwidth reduction is possible with less than 5-10% impact on scheduling performance. Further, we consider the impact of lowering the CQI reporting rate on both mobility performance and increased measuring accuracy due to longer averaging interval. We find that FDPS can provide around 30-45% gain for the UTRAN long-term evolution (aka 3.9G) with a CQI reporting bandwidth as low as 10 kbit/s in a 20MHz system (3-10 km/h).

AB - In this paper, we study methods for lowering the bandwidth needed for the UE to transmit channel quality indication (CQI) for time and frequency domain scheduling (FDPS) in OFDMA. We consider smart compression methods, such as threshold based indication, to only include scheduler-relevant information in the CQI. We find that a 60-70% CQI bandwidth reduction is possible with less than 5-10% impact on scheduling performance. Further, we consider the impact of lowering the CQI reporting rate on both mobility performance and increased measuring accuracy due to longer averaging interval. We find that FDPS can provide around 30-45% gain for the UTRAN long-term evolution (aka 3.9G) with a CQI reporting bandwidth as low as 10 kbit/s in a 20MHz system (3-10 km/h).

KW - CQI signalling

KW - packet scheduling

KW - LTE

U2 - 10.1109/ISWCS.2006.4362304

DO - 10.1109/ISWCS.2006.4362304

M3 - Article in proceeding

SN - 978-1-4244-0398-1

SP - 282

EP - 286

BT - 3rd International Symposium on Wireless Communication Systems, 2006. ISWCS '06.

PB - Electrical Engineering/Electronics, Computer, Communications and Information Technology Association

T2 - International Symposium on Wireless Communication Systems (ISWCS) 2006

Y2 - 5 September 2006 through 8 September 2006

ER -

Low-Bandwidth Channel Quality Indication for OFDMA Frequency Domain Packet Scheduling

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