IEICE TRANSACTIONS on Fundamentals
Performance Improvement of Proportional Fairness-Based Resource Allocation in OFDMA Downlink Systems
Summary :
We have developed a novel downlink packet scheduling scheme for a multiuser OFDMA system in which a subchannel can be time-multiplexed among multiple users. This scheme which is called Matrixed-based Proportional Fairness can provide a high system throughput while ensuring fairness. The scheme is based on a Proportional Fairness (PF) utility function and can be applied to any of the PF-based schedulers. Our scheduler explores multichannel multiuser diversity by using a two-dimensional matrix combining user selection, subchannel assignment, and time slot allocation. Furthermore, unlike other PF-based schemes, our scheme considers finitely backlogged queues during the time slot allocation. By doing so, it can exploit multichannel multiuser diversity to utilize bandwidth efficiently and with throughput fairness. Additionally, fairness in the time domain is enhanced by limiting the number of allocated time slots. Intensive simulations considering finitely backlogged queues and user mobility prove the scheme's effectiveness.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E92-A No.9 pp.2191-2199
- Publication Date
- 2009/09/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E92.A.2191
- Type of Manuscript
- Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
- Category
- Broadband Wireless Access System
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Keyword
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Nararat RUANGCHAIJATUPON, Yusheng JI, "Performance Improvement of Proportional Fairness-Based Resource Allocation in OFDMA Downlink Systems" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 9, pp. 2191-2199, September 2009, doi: 10.1587/transfun.E92.A.2191.
Abstract: We have developed a novel downlink packet scheduling scheme for a multiuser OFDMA system in which a subchannel can be time-multiplexed among multiple users. This scheme which is called Matrixed-based Proportional Fairness can provide a high system throughput while ensuring fairness. The scheme is based on a Proportional Fairness (PF) utility function and can be applied to any of the PF-based schedulers. Our scheduler explores multichannel multiuser diversity by using a two-dimensional matrix combining user selection, subchannel assignment, and time slot allocation. Furthermore, unlike other PF-based schemes, our scheme considers finitely backlogged queues during the time slot allocation. By doing so, it can exploit multichannel multiuser diversity to utilize bandwidth efficiently and with throughput fairness. Additionally, fairness in the time domain is enhanced by limiting the number of allocated time slots. Intensive simulations considering finitely backlogged queues and user mobility prove the scheme's effectiveness.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.2191/_p
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@ARTICLE{e92-a_9_2191,
author={Nararat RUANGCHAIJATUPON, Yusheng JI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Performance Improvement of Proportional Fairness-Based Resource Allocation in OFDMA Downlink Systems},
year={2009},
volume={E92-A},
number={9},
pages={2191-2199},
abstract={We have developed a novel downlink packet scheduling scheme for a multiuser OFDMA system in which a subchannel can be time-multiplexed among multiple users. This scheme which is called Matrixed-based Proportional Fairness can provide a high system throughput while ensuring fairness. The scheme is based on a Proportional Fairness (PF) utility function and can be applied to any of the PF-based schedulers. Our scheduler explores multichannel multiuser diversity by using a two-dimensional matrix combining user selection, subchannel assignment, and time slot allocation. Furthermore, unlike other PF-based schemes, our scheme considers finitely backlogged queues during the time slot allocation. By doing so, it can exploit multichannel multiuser diversity to utilize bandwidth efficiently and with throughput fairness. Additionally, fairness in the time domain is enhanced by limiting the number of allocated time slots. Intensive simulations considering finitely backlogged queues and user mobility prove the scheme's effectiveness.},
keywords={},
doi={10.1587/transfun.E92.A.2191},
ISSN={1745-1337},
month={September},}
Copy
TY - JOUR
TI - Performance Improvement of Proportional Fairness-Based Resource Allocation in OFDMA Downlink Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2191
EP - 2199
AU - Nararat RUANGCHAIJATUPON
AU - Yusheng JI
PY - 2009
DO - 10.1587/transfun.E92.A.2191
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 9
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - September 2009
AB - We have developed a novel downlink packet scheduling scheme for a multiuser OFDMA system in which a subchannel can be time-multiplexed among multiple users. This scheme which is called Matrixed-based Proportional Fairness can provide a high system throughput while ensuring fairness. The scheme is based on a Proportional Fairness (PF) utility function and can be applied to any of the PF-based schedulers. Our scheduler explores multichannel multiuser diversity by using a two-dimensional matrix combining user selection, subchannel assignment, and time slot allocation. Furthermore, unlike other PF-based schemes, our scheme considers finitely backlogged queues during the time slot allocation. By doing so, it can exploit multichannel multiuser diversity to utilize bandwidth efficiently and with throughput fairness. Additionally, fairness in the time domain is enhanced by limiting the number of allocated time slots. Intensive simulations considering finitely backlogged queues and user mobility prove the scheme's effectiveness.
ER -
English
