Cross layer scheduling for real-time traffic in multiuser MIMO-OFDMA systems

doi:10.1016/S1005-8885(08)60222-8

中国邮电高校学报(英文) ›› 2009, Vol. 16 ›› Issue (3): 24-29.doi: 10.1016/S1005-8885(08)60222-8

Cross layer scheduling for real-time traffic in multiuser MIMO-OFDMA systems

孙巧云,田辉,董琨,张平

Key Laboratory of Universal Wireless Communications, Ministry of Education , Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-06-30
通讯作者: 孙巧云

Cross layer scheduling for real-time traffic in multiuser MIMO-OFDMA systems

SUN Qiao-yun, TIAN Hui, DONG Kun, ZHANG Ping

Key Laboratory of Universal Wireless Communications, Ministry of Education , Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:1900-01-01 Revised:1900-01-01 Online:2009-06-30
Contact: SUN Qiao-yun

摘要/Abstract

摘要：

A novel cross layer scheduling algorithm is proposed for real-time (RT) traffic in multiuser downlink multiple-input multiple-output orthogonal frequency division multiple access (MIMO-OFDMA) wireless systems. The algorithm dynamically allocates resources in space, time and frequency domain based on channel state information (CSI), users’ quality of service (QoS) requirements and queue state information (QSI). To provide higher data rate and spectrum efficiency, adaptive modulation and coding (AMC) is employed. The proposed algorithm can improve cell throughput and increase the number of users that can be supported while guaranteeing users’ QoS requirements and fairness among all users. Simulation results indicate that the proposed algorithm can achieve superior performance.

关键词:

MIMO-OFDMA,;cross;layer,;QoS,;AMC

Abstract:

Key words:

MIMO-OFDMA;cross layer;QoS;AMC

SUN Qiao-yun, TIAN Hui, DONG Kun, ZHANG Ping. Cross layer scheduling for real-time traffic in multiuser MIMO-OFDMA systems[J]. Acta Metallurgica Sinica(English letters), 2009, 16(3): 24-29.

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Cross layer scheduling for real-time traffic in multiuser MIMO-OFDMA systems

Cross layer scheduling for real-time traffic in multiuser MIMO-OFDMA systems

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