A Low Complexity Sparse Code Multiple Access Detector Based on Stochastic Computing
A Low Complexity Sparse Code Multiple Access Detector Based on Stochastic Computing
复制标题
基于随机计算的低复杂度稀疏码多址检测器
DOI:
10.1109/tcsi.2017.2722692
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发表时间:
2018-02
期刊:
影响因子:
--
通讯作者:
卢浩
中科院分区:
文献类型:
--
作者:
韩凯宁;胡剑浩;张珍兵;卢浩
Sparse code multiple access (SCMA) is a promising multiple access technology candidate for the next-generation communication system, which can dramatically improve spectral efficiency. However, the major challenge of SCMA is the very high detection complexity. Stochastic computing is a new number representation, which can carry out complex computations with very simple logics. In this paper, we extend the application of stochastic computing to SCMA detection and propose a low complexity stochastic SCMA detector. We also design three novel stochastic logic architectures: a new low hardware cost bit stream generation architecture, a low hardware cost stochastic function node update architecture and a fast converging stochastic variable node update architecture. Analysis and simulation results show that the proposed stochastic SCMA detector saves 69% complexity compared with the traditional SCMA detectors with a comparable bit error rate performance. The synthesis results with SIMC 65-nm CMOS technology show that the proposed stochastic SCMA detector achieves 640 Mbps total system throughput with only 1.45-mm $^{{{2}}}$ cell area.
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影响因子:
3.9
作者:
I. Perez-Andrade;Shida Zhong;R. Maunder;B. Al-Hashimi;L. Hanzo
通讯作者:
I. Perez-Andrade;Shida Zhong;R. Maunder;B. Al-Hashimi;L. Hanzo
影响因子:
8.3
作者:
Gabi Sarkis;S. Hemati;Shie Mannor;W. Gross
通讯作者:
Gabi Sarkis;S. Hemati;Shie Mannor;W. Gross
DOI:
10.1007/978-1-4613-2369-3
发表时间:
1970-01
期刊:
--
影响因子:
--
作者:
J. Tou
通讯作者:
J. Tou
DOI:
10.1007/978-1-4899-5841-9
发表时间:
1969
期刊:
--
影响因子:
--
作者:
B. Gaines
通讯作者:
B. Gaines
DOI:
10.1109/icc.2009.5199493
发表时间:
2009-06
期刊:
2009 IEEE International Conference on Communications
影响因子:
--
作者:
Gabi Sarkis;Shie Mannor;W. Gross
通讯作者:
Gabi Sarkis;Shie Mannor;W. Gross