QoS-aware scheduling algorithm in relay-assisted LTE-A system

doi:10.1016/S1005-8885(13)60084-9

中国邮电高校学报(英文) ›› 2013, Vol. 20 ›› Issue (5): 16-21.doi: 10.1016/S1005-8885(13)60084-9

QoS-aware scheduling algorithm in relay-assisted LTE-A system

啜钢,于晓靓

1. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China 2. Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:2013-05-31 修回日期:2013-08-29 出版日期:2013-10-30 发布日期:2013-10-29
通讯作者: 于晓靓 E-mail:hyacinth.xl@gmail.com
基金资助:
This work was supported by the Major National Science & Technology Specific Project of China (2010ZX03002-002-03).

QoS-aware scheduling algorithm in relay-assisted LTE-A system

Gang Chuai,Yu XiaoLiang

1. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China 2. Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2013-05-31 Revised:2013-08-29 Online:2013-10-30 Published:2013-10-29
Contact: Yu XiaoLiang E-mail:hyacinth.xl@gmail.com
Supported by:
This work was supported by the Major National Science & Technology Specific Project of China (2010ZX03002-002-03).

摘要/Abstract

摘要： This paper details on the uplink scheduling algorithm for long term evolution advanced (LTE-A) system with relays. While emulating quality of service (QoS)-aware services with different bit-rate and delay budget requirements for the upstream direction, a new QoS-aware scheduling algorithm for in-band relays is proposed. In this work, an improved scheduling metric calculation method and bit-rate guarantee scheme is applied. Moreover, this algorithm proposes an efficient scheme for the backhaul link allocation which allows information of the most backlogged users to be transmitted first. Finally, this paper concludes with simulation results to demonstrate how the proposed resource allocation strategy improves the performance of the system.

关键词: relay station, scheduling algorithm, guaranteed bit rate (GBR), backhaul link, access link

Abstract: This paper details on the uplink scheduling algorithm for long term evolution advanced (LTE-A) system with relays. While emulating quality of service (QoS)-aware services with different bit-rate and delay budget requirements for the upstream direction, a new QoS-aware scheduling algorithm for in-band relays is proposed. In this work, an improved scheduling metric calculation method and bit-rate guarantee scheme is applied. Moreover, this algorithm proposes an efficient scheme for the backhaul link allocation which allows information of the most backlogged users to be transmitted first. Finally, this paper concludes with simulation results to demonstrate how the proposed resource allocation strategy improves the performance of the system.

Key words: relay station, scheduling algorithm, guaranteed bit rate (GBR), backhaul link, access link

中图分类号:

TN929.53

Chuai Gang, Yu XiaoLiang. QoS-aware scheduling algorithm in relay-assisted LTE-A system[J]. Acta Metallurgica Sinica(English letters), 2013, 20(5): 16-21.

参考文献

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QoS-aware scheduling algorithm in relay-assisted LTE-A system

QoS-aware scheduling algorithm in relay-assisted LTE-A system

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