Resource scheduling scheme with QoS support in two-hop relay-enhanced OFDMA systems

doi:10.1016/S1005-8885(09)60483-0

中国邮电高校学报(英文) ›› 2010, Vol. 17 ›› Issue (4): 26-30.doi: 10.1016/S1005-8885(09)60483-0

Resource scheduling scheme with QoS support in two-hop relay-enhanced OFDMA systems

刘伟¹,纪红²,李亭³

1. 中国电信增值业务运营中心
2. 北京邮电大学
3. 北京邮电大学电信工程学院

收稿日期:2009-05-26 修回日期:2010-01-21 出版日期:2010-08-30 发布日期:2010-08-31
通讯作者: 刘伟 E-mail:lw.bupt@gmail.com
基金资助:
This work was supported by the National Natural Science Foundation of China (60832009), the Hi-Tech Research and Development Program of China (2007AA01Z221, 2009AA01Z246).

Resource scheduling scheme with QoS support in two-hop relay-enhanced OFDMA systems

LIU Wei, JI Hong, LI Ting

School of Information and Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2009-05-26 Revised:2010-01-21 Online:2010-08-30 Published:2010-08-31
Contact: LIU Wei E-mail:lw.bupt@gmail.com
Supported by:
This work was supported by the National Natural Science Foundation of China (60832009), the Hi-Tech Research and Development Program of China (2007AA01Z221, 2009AA01Z246).

摘要/Abstract

摘要：

As the system performance is obviously improved by introducing the concept of relay into the traditional orthogonal frequency division multiple access (OFDMA) systems, resource scheduling in relay-enhanced OFDMA systems is worthy of being studied carefully. To solve the optimization problem of achieving the maximum throughput while satisfying the quality of service (QoS) and guaranteeing the fairness of users, a novel resource scheduling scheme with QoS support for the downlink of two-hop relay-enhanced OFDMA systems is proposed. The proposed scheme, which is considered both in the first time sub-slot between direct link users and relay stations, and the second time sub-slot among relay link users, takes QoS support into consideration, as well as the system throughput and the fairness for users. Simulation results show that the proposed scheme has good performance in maximizing system throughput and guaranteeing the performance in the service delay and the data loss rate.

关键词:

relay, OFDMA, QoS, resource scheduling

Abstract:

Key words:

relay, OFDMA, QoS, resource scheduling

LIU Wei (?), JI Hong, LI Ting. Resource scheduling scheme with QoS support in two-hop relay-enhanced OFDMA systems[J]. Acta Metallurgica Sinica(English letters), 2010, 17(4): 26-30.

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Resource scheduling scheme with QoS support in two-hop relay-enhanced OFDMA systems

Resource scheduling scheme with QoS support in two-hop relay-enhanced OFDMA systems

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