Impact of the Transmission Scheme on the Performance in Wireless LANs

Impact of the Transmission Scheme on the Performance in Wireless LANs
复制标题

传输方案对无线局域网性能的影响

DOI:
10.1007/978-3-642-03819-8_29
复制
发表时间:
2009
期刊:
影响因子:
--
通讯作者:
R. Böhnke
R. Böhnke
中科院分区:
--
文献类型:
--
作者:
A. Könsgen;A. Timm-Giel;C. Görg;R. Böhnke

文献摘要

参考文献

被引文献

相似文献

在无线局域网中,可以使用不同的多用户接入方法,例如TDMA、OFDMA和SDMA,它们可以在发射机具有或不具有信道知识的情况下使用,也可以在接收器使用单天线(MISO)或多天线(MIMO)。考虑跨层调度器,该跨层调度器可以用这些不同的PHY方法以及关于MAC层的应用要求和信道条件的知识来配置。调度器计算MAC层上移交给物理层的优先级,以保持服务质量约束,如吞吐量和延迟。本文论证了在不同的信道条件下,通过一种支持服务质量的资源分配方法来控制优先级可以满足不同应用的需求。与MIMO-SDMA相比,MISO-SDMA具有相对较小的性能损失,从而提供了最好的结果。对于MIMO-TDMA和-OFDMA,物理层的信道知识不会导致必要的性能增强。
In wireless LANs, different multi-user access methods such as TDMA, OFDMA and SDMA are available which can be used with or without channel knowledge at the transmitter and a single antenna (MISO) or multiple antennas (MIMO) at the receiver. A cross-layer scheduler is considered which can be configured with these different PHY methods as well as with knowledge about application requirements and channel conditions at the MAC layer. The scheduler computes priorities on the MAC layer that are handed over to the physical layer in order to keep quality-of-service constraints such as throughput and delay. In this paper, it is demonstrated that controlling the priorities by a QoS aware resource allocation method allows to meet the requirements by the applications under various channel conditions. MISO-SDMA has a relatively small performance penalty in comparison to MIMO-SDMA which gives the best result. For MIMO-TDMA and -OFDMA, channel knowledge at the PHY layer does not result in essential performance enhancement.
多用户 MIMO 系统和应用的基于几何的信道建模
DOI: --
发表时间: 2008
期刊:
影响因子: --
作者:
G. D. Galdo
通讯作者: G. D. Galdo
室内环境中跨层调度的智能 MISO 与哑 MIMO
DOI: 10.1109/iwcld.2009.5156525
发表时间: 2009
期刊: 2009 Second International Workshop on Cross Layer Design
影响因子: --
作者:
R. Böhnke;K.D. Kammeyer;A. Könsgen;C Görg
通讯作者: C Görg
用于无线 LAN 的增强型跨层两级调度程序
DOI: 10.1109/pimrc.2007.4394577
发表时间: 2007
期刊: 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications
影响因子: --
作者:
A. Könsgen;W. Herdt;A. Tirnm-Giel;H. Wang;C. Görg
通讯作者: C. Görg
基于MIMO-OFDMA-SDMA传输的无线局域网两级QoS感知调度器
DOI: 10.1109/iwcld.2007.4379026
发表时间: 2007
期刊: 2007 International Workshop on Cross Layer Design
影响因子: --
作者:
A. Könsgen;W. Herdt;H. Wang;A. Timm-Giel;R. Böhnke;C. Görg
通讯作者: C. Görg