检索结果-内蒙古大学图书馆

International Conference on Signal Processing and Communication (ICSC)

作者： Chauhan, Abha Mehra, Rajesh NITTTR Chandigarh India

ISBN: (纸本)9781479916054

Sphere Decoding (SD) algorithm has emerged as a highly effective detection scheme for Multiple-Input Multiple-output (MIMO) systems. It offers a near maximum likelihood accuracy with reduced complexity. Despite this, there is a constant demand of even low complexity SD algorithms. This paper presents the FPGA implementation of schnorr-euchner SD algorithm with Early Termination (ET) scheme for uncoded multiple-input multiple output system. The ET scheme reduces the complexity of the decoder. The proposed decoder is designed for 4x4 Binary Phase Shift Keying (BPSK) MIMO system. The trade-off between the Bit Error Rate (BER) performance and the computational complexity is discussed. To compute the computational complexity synthesis of the proposed design is done on Xilinx Virtex 5 XC5VLX30T and Spartan 6 XC6SLX25T. An exhaustive comparison on the basis of resources utilized and frequency (MHz) at which the design can run is done on both the FPGAs.

关键词： Sphere Decoder Maximum likelihood detector Multiple-Input Multiple-Output schnorr-euchner algorithm Early Termination Field Programmable Gate Array Bit Error Rate

来源：评论

学校读者我要写书评

暂无评论

algorithm and implementation of the K-best sphere decoding for MIMO detection

引用

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS 2006年第3期24卷 491-503页

作者： Guo, Z Nilsson, P Lund Univ Dept Electrosci SE-22100 Lund Sweden

K-best schnorr-euchner (KSE) decoding algorithm is proposed in this paper to approach near-maximum-likelihood (ML) performance for multiple-input-multiple-output (MIMO) detection. As a low complexity MIMO decoding algorithm, the KSE is shown to be suitable for very large scale integration (VLSI) implementations and be capable or supporting soft outputs. Modified KSE (MKSE) decoding algorithm is further proposed to improve the performance of the soft-output KSE with minor modifications. Moreover, a VLSI architecture is proposed for both algorithms. There are several low complexity and low-power features incorporated in the proposed algorithms and the VLSI architecture. The proposed hard-output KSE decoder and the soft-output MKSE decoder is implemented for 4 x 4 16-quadrature amplitude modulation (QAM) MIMO detection in a 0.35-mu m and a 0.13-mu m CMOS technology, respectively. The implemented hard-output KSE chip core is 5.76 mm(2) with 91 K gates. The KSE decoding throughput is up to 53.3 Mb/s with a core power consumption of 626 mW at 100 MHz clock frequency and 2.8 V supply. The implemented soft-output MKSE chip can achieve a decoding throughput of more than 100 Mb/s with a 0.56 mm(2) core area and 97 K gates. The implementation results show that it is feasible to achieve near-ML performance and high detection throughput for a 4 x 4 16-QAM MIMO system using the proposed algorithms and the VLSI architecture with reasonable complexity.

关键词： multiple-input-multiple-output (MIMO) schnorr-euchner algorithm sphere decoder very large scale integration (VLSI)

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：