收稿日期: 2010-09-27
修回日期: 2010-12-31
网络出版日期: 2011-05-26
基金资助
国家“863”高技术研究发展计划基金(No.2009AA01Z249)；国家重大专项课题基金(No.2010ZX03003-003-01)；国家自然科学
基金(No.60972050)资助
Cross-Layer Design in Multiuser MIMO-OFDM Systems Based on Space-Time Block Coding for IEEE 802.16
Received date: 2010-09-27
Revised date: 2010-12-31
Online published: 2011-05-26
研究了多用户MIMO-OFDM系统中基于空时编码的联合数据包调度和动态资源分配的跨层设计. 根据IEEE 802.16协议将所有业务类型分为4 类，在媒体接入层利用一种分层的调度架构进行各用户各业务间的数据包调度：第1层调度器负责同类业务中不同用户的调度，第2 层负责不同业务之间的调度. 最后在物理层根据媒体接入层调度结果和信道状态信息联合考虑进行无线资源的自适应分配. 仿真结果表明，所提出的方法在丢包率、包时延和系统吞吐量等方面的性能都有明显提高.
关键词： 空时编码; 跨层设计; IEEE 802.16; 多用户MIMO-OFDM系统
谢威， 余江 . IEEE 802.16中基于空时编码的多用户MIMO-OFDM系统跨层设计[J]. 应用科学学报, 2011 , 29(3) : 228 -232 . DOI: 10.3969/j.issn.0255-8297.2011.03.002
Cross-layer design of packet scheduling and adaptive resource allocation in multiuser MIMO-OFDM systems are investigated based on space-time block coding (STBC). Different types of service are grouped into four types according to the 802.16 protocol. A two-layer scheduling architecture is then used to shape traffic at medium access (MAC) layer: the first layer schedule packets for different users of the same service type, and the second for different service types. A resource allocation algorithm is proposed to efficiently allocate wireless resource at physical layer according to the scheduling results of the MAC layer and the channel state information. Simulation results show that the proposed algorithm can achieve significant improvement in packet drop rate, packet delay, and system throughput as compared to an existing method.
[1] Hossain E, Xiao Yang, Wang Lichun, Leung K K.Radio resource management and protocol engineering for IEEE 802.16
[J]. IEEE Wireless Communications, 2007, 14(1): 4-5.
[2] IEEE standard for local and metropolitan area networks-part 16: air interface for fixed broadband wireless access systems
[S]. IEEE standard. 802.16, Rev. 2004, Oct. 2004.
[3] 郝丹丹，李永华，张瀚峰，邹仕洪，程时瑞. 一种跨层的OFDMA系统调度和资源分配算法
[J]. 电子学报，2008, 36(10): 1923-19
Hao Dandan, Li Yonghua, Zhang Hanfeng, Zou Shihong,Cheng Shirui. A cross-layered scheduling and resource allocation algorithm in OFDMA systems
[J]. Acta Electronica Sinica, 2008, 36(10): 1923-1930. (inChinese)
[4] 史俊财，胡爱群. 基于OFDMA／TDM系统的跨层资 源分配算法
[J]. 信号处理，2009, 25(3): 403-407.
Shi Juncai, Hu Aiqun. Cross-layer radio resource allocation algorithm for the OFDMA/TDM system
[J]. Signal Processing, 2009, 25(3): 403-407. (in Chinese)
[5] Wong C, Cheng R, Letaief K, Murch R. Multiuser OFDM with adaptive subcarrier, bit and power allocation
[J]. IEEE Journal on Selected Areas
in Communications, 1999, 17(10): 1747-1758.
[6] Song Pengpeng, Cai Liyu. Multi-user subcarrier allocation with minimum rate requests for downlink OFDMA packet transmission
[C]//Proceedings of IEEE Vehicular Technology Conference, 2004: 1920- 1924.
[7] Yungsoo K, Byung J J, Jaehak C, Chan-soo H, Ryu J S, Ki-ho K, Young K K. Beyond 3G: vision, requirements, and enabling technologies
[J]. IEEE
Communications Magazine, 2003, 41(3): 120-124.
[8] Jeong S S, Jeong D G, Jeon W S. Crosslayer design of packet scheduling and resource allocation in OFDMA wireless multimedia networks
[C]//Proceedings of IEEE Vehicular Technology
Conference, 2006: 309-313.
[9] Huang Weilan, Letaief K B. A cross-layer resource
allocation and scheduling for multiuser space-time block coded MIMO/OFDM Systems
[C]//Proceedings of IEEE International Conference
on Communications, 2005: 2655-2659.
[10] 韩明，李晓辉，易克初. 基于区分业务的OFDM跨层动态资源分配算法
[J]. 电路与系统学报, 2008, 13(5):98-102.
Han Ming, Li Xiaohui, Yi Kechu. Diff-SerVice based cross-layer dynamic resource allocation algorithm for OFDM systems
[J]. Journal of Circuits and Systems, 2008, 13(5): 98-102. (in Chinese)
[11] IEEE 802.16-2001. IEEE standard for local and metropolitan area networks part 16: air interface for fixed broadband wireless access systems.
[12] Siavash M, Alamouti. A simple transmit diversity technique for wireless communications
[J]. IEEE Journal Select Areas in Communication, 1998, 16(8): 1451-1458.
[13] 孙巧云，田辉，董琨，张平. MIMO-OFDM系统中具有QoS保证的动态资源分配
[J]. 电子与信息学报，2009,31(1): 41-44.
Sun Qiaoyun, Tian Hui, Dong Kun, Zhang Ping.QoS guaranteed dynamic resource allocation for MIMO-OFDM systems
[J]. Journal of Electronics &
Information Technology, 2009, 31(1): 41-44. (in Chinese)
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