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宽带无线接入OFDM接收机的VLSI实现 被引量：2

VLSI Implementation of an OFDM-Based Broadband Wireless Access System
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摘要 基于IEEE 802.16d协议物理层标准中的OFDM模式,设计了一个接收机ASIC。整个接收机设计通过算法和结构优化,采用模块复用和流水线技术,使得接收机结构更加紧凑,运算效率更高,节省了芯片面积。另外,在实现过程中,还采用了低功耗设计技术,以满足终端对低功耗的要求。详细描述了该ASIC接收机的VLSI实现和具体优化过程,对关键算法的性能和实现复杂度进行了权衡分析。该ASIC接收机经过综合后面积为3.481 mm2,在64 QAM调制方式下,可支持最大数据速率达30 Mb/s,适合户外多径情况下的固定接入无线分组通信。 An OFDM receiver ASIC specifically targeting IEEE 802. 16d standard was designed and fabricated. By algorithms and structure optimization and extensive use of time-sharing and pipeline, the receiver achieved higher computation efficiency with a compact structure and smaller silicon area. VLSI implementation and optimization of the ASIC was described. Finite-precision effects were investigated to minimize the computation requirements for major signal processing blocks. Performance and implementation cost tradeoff on key algorithms was also analyzed. The synthesized receiver ASIC occupies a silicon area of 3. 481 mm^2 , and it could provide a maximum data-rate of 30 Mb/s in 64 QAM modulation mode, which is suitable for packet-based fixed access applications.
作者 邱昕 张浩 亓中瑞 刘壹 陈杰
机构地区 中国科学院微电子研究所通信与多媒体SOC实验室
出处 《微电子学》 CAS CSCD 北大核心 2008年第4期562-568,共7页 Microelectronics
基金 国家自然科学基金资助项目(60425413)
关键词 宽带无线接入 正交频分复用 接收机 超大规模集成电路 专用集成电路 Broadband wireless access OFDM Receiver VLSI ASIC
分类号 TN911 [电子电信—通信与信息系统] TN47 [电子电信—微电子学与固体电子学]
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参考文献11

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共引文献24

同被引文献21

  • 1刘蓬涛,李大兴.基于Lagrange插值多项式的门限方案的实现[J].计算机工程与应用,2005,41(36):117-119. 被引量：5
  • 2王晓峰,张璟,王尚平,张亚玲,秦波.基于口令认证的移动Ad Hoc网密钥协商方案[J].软件学报,2006,17(8):1811-1817. 被引量：18
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微电子学
2008年 第4期

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