A Simple Scheduling Restriction Scheme for Interference Coordinated Networks
Summary :
Scheduling restriction is attracting much attention in LTE-Advanced as a technique to reduce the power consumption and network overheads in interference coordinated heterogeneous networks (HetNets). Such a network with inter-cell interference coordination (ICIC) provides two radio resources with different channel quality statistics. One of the resources is protected (unprotected) from inter-cell interference (hence, called protected (non-protected) resource) and has higher (lower) average channel quality. Without scheduling restriction, the channel quality feedback would be doubled to reflect the quality difference of the two resources. We present a simple scheduling restriction scheme that addresses the problem without significant performance degradation. Users with relatively larger (smaller) average channel quality difference between the two resources are scheduled in the protected (non-protected) resource only, and a boundary user, determined by a proportional fair resource allocation (PFRA) under simplified static channels, is scheduled on one of the two resources or both depending on PFRA. Having most users scheduled in only one of the resources, the power consumption and network overheads that would otherwise be required for the channel quality feedback on the other resource can be avoided. System level simulation of LTE-Advanced downlink shows that the performance degradation due to our scheduling restriction scheme is less than 2%, with the average feedback reduction of 40%.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E96-B No.6 pp.1306-1317
- Publication Date
- 2013/06/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E96.B.1306
- Type of Manuscript
- Special Section PAPER (Special Section on Heterogeneous Networks for Future Cellular Systems)
- Category
Authors
Moo Ryong JEONG
DOCOMO Innovations, Inc.
Nobuhiko MIKI
NTT DOCOMO, INC.
Keyword
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Moo Ryong JEONG, Nobuhiko MIKI, "A Simple Scheduling Restriction Scheme for Interference Coordinated Networks" in IEICE TRANSACTIONS on Communications,
vol. E96-B, no. 6, pp. 1306-1317, June 2013, doi: 10.1587/transcom.E96.B.1306.
Abstract: Scheduling restriction is attracting much attention in LTE-Advanced as a technique to reduce the power consumption and network overheads in interference coordinated heterogeneous networks (HetNets). Such a network with inter-cell interference coordination (ICIC) provides two radio resources with different channel quality statistics. One of the resources is protected (unprotected) from inter-cell interference (hence, called protected (non-protected) resource) and has higher (lower) average channel quality. Without scheduling restriction, the channel quality feedback would be doubled to reflect the quality difference of the two resources. We present a simple scheduling restriction scheme that addresses the problem without significant performance degradation. Users with relatively larger (smaller) average channel quality difference between the two resources are scheduled in the protected (non-protected) resource only, and a boundary user, determined by a proportional fair resource allocation (PFRA) under simplified static channels, is scheduled on one of the two resources or both depending on PFRA. Having most users scheduled in only one of the resources, the power consumption and network overheads that would otherwise be required for the channel quality feedback on the other resource can be avoided. System level simulation of LTE-Advanced downlink shows that the performance degradation due to our scheduling restriction scheme is less than 2%, with the average feedback reduction of 40%.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E96.B.1306/_p
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@ARTICLE{e96-b_6_1306,
author={Moo Ryong JEONG, Nobuhiko MIKI, },
journal={IEICE TRANSACTIONS on Communications},
title={A Simple Scheduling Restriction Scheme for Interference Coordinated Networks},
year={2013},
volume={E96-B},
number={6},
pages={1306-1317},
abstract={Scheduling restriction is attracting much attention in LTE-Advanced as a technique to reduce the power consumption and network overheads in interference coordinated heterogeneous networks (HetNets). Such a network with inter-cell interference coordination (ICIC) provides two radio resources with different channel quality statistics. One of the resources is protected (unprotected) from inter-cell interference (hence, called protected (non-protected) resource) and has higher (lower) average channel quality. Without scheduling restriction, the channel quality feedback would be doubled to reflect the quality difference of the two resources. We present a simple scheduling restriction scheme that addresses the problem without significant performance degradation. Users with relatively larger (smaller) average channel quality difference between the two resources are scheduled in the protected (non-protected) resource only, and a boundary user, determined by a proportional fair resource allocation (PFRA) under simplified static channels, is scheduled on one of the two resources or both depending on PFRA. Having most users scheduled in only one of the resources, the power consumption and network overheads that would otherwise be required for the channel quality feedback on the other resource can be avoided. System level simulation of LTE-Advanced downlink shows that the performance degradation due to our scheduling restriction scheme is less than 2%, with the average feedback reduction of 40%.},
keywords={},
doi={10.1587/transcom.E96.B.1306},
ISSN={1745-1345},
month={June},}
Copy
TY - JOUR
TI - A Simple Scheduling Restriction Scheme for Interference Coordinated Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 1306
EP - 1317
AU - Moo Ryong JEONG
AU - Nobuhiko MIKI
PY - 2013
DO - 10.1587/transcom.E96.B.1306
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E96-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2013
AB - Scheduling restriction is attracting much attention in LTE-Advanced as a technique to reduce the power consumption and network overheads in interference coordinated heterogeneous networks (HetNets). Such a network with inter-cell interference coordination (ICIC) provides two radio resources with different channel quality statistics. One of the resources is protected (unprotected) from inter-cell interference (hence, called protected (non-protected) resource) and has higher (lower) average channel quality. Without scheduling restriction, the channel quality feedback would be doubled to reflect the quality difference of the two resources. We present a simple scheduling restriction scheme that addresses the problem without significant performance degradation. Users with relatively larger (smaller) average channel quality difference between the two resources are scheduled in the protected (non-protected) resource only, and a boundary user, determined by a proportional fair resource allocation (PFRA) under simplified static channels, is scheduled on one of the two resources or both depending on PFRA. Having most users scheduled in only one of the resources, the power consumption and network overheads that would otherwise be required for the channel quality feedback on the other resource can be avoided. System level simulation of LTE-Advanced downlink shows that the performance degradation due to our scheduling restriction scheme is less than 2%, with the average feedback reduction of 40%.
ER -
English
