Channel estimation and performance analysis for uplink SCMA system

Xian’an HU; Xiangnian ZENG

doi:10.11959/j.issn.1000-0801.2017267

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Channel estimation and performance analysis for uplink SCMA system

Operation technology wide Angle | 更新时间：2024-06-05

- Channel estimation and performance analysis for uplink SCMA system
- Telecommunications Science Vol. 33, Issue 11, Pages: 169-178(2017)
- 作者机构：
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- DOI：10.11959/j.issn.1000-0801.2017267
  CLC： TP393
- Published Online：2017-11，
  
  Published：20 November 2017
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Xian’an HU, Xiangnian ZENG. Channel estimation and performance analysis for uplink SCMA system[J]. Telecommunications science, 2017, 33(11): 169-178.
DOI：

Xian’an HU, Xiangnian ZENG. Channel estimation and performance analysis for uplink SCMA system[J]. Telecommunications science, 2017, 33(11): 169-178. DOI： 10.11959/j.issn.1000-0801.2017267.

摘要

针对两种SCMA资源映射方式（RE-Sparse SCMA和RB-Sparse SCMA）和已有的基于ZC序列循环移位正交性和正交覆盖码的导频图样方案，提出了基于频分复用的稀疏导频图样，并且在具有不同频率选择性的信道下进行了仿真评估，同时对SCMA的SIC-MPA接收算法提出了目标用户选择策略。从仿真结果可以看出，在慢衰落信道前提下，正交覆盖码和频分复用都可以明显提升信道估计性能，RB-Sparse SCMA 与RE-Sparse SCMA相比，导频图样本身有一定的频域正交性，且性能更好，因此能更灵活地适用于实际多用户传输场景。

Abstract

There are two types of physical mapping for SCMA named RE-Sparse SCMA and RB-Sparse SCMA.A frequency division multiplexing (FDM) based pilot pattern was proposed for RE-Sparse SCMA

and existing code division multiplexing pilot patterns based on cyclic shift and orthogonal cover code (OCC) were considered.Under different frequency selective channels

simulation and evaluation work for the two mapping schemes of SCMA had done.Besides

a target user selection strategy was proposed for existing SIC-MPA.Analytical simulation results show that both OCC and FDM can improve system performance with slot fading channel.Compared with RE-Sparse SCMA

RB-Sparse SCMA with partially frequency orthogonal pilot pattern enjoys better performance gain

and it is more applicable for realistic multi-user SCMA scenario.

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references

倪善金 , 赵军辉 . 5G无线通信网络物理层关键技术 [J ] . 电信科学 , 2015 , 31 ( 12 ): 40 - 45 .

NI S J , ZHAO J H . Key technologies in physical layer of 5G wireless communications network [J ] . Telecommunications Science , 2015 , 31 ( 12 ): 40 - 45 .

NIKOPOUR H , BALIGH H . Sparse code multiple access [C ] // IEEE Personal Indoor and Mobile Radio Communications (PIMRC),Sept 8-11,2013,London,UK . New Jersey:IEEE Press , 2013 : 332 - 336 .

WANG B , WANG K , LU Z , et al . Comparison study of non-orthogonal multiple access schemes for 5G [C ] // IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB),June 17-19,2015,Ghent,Belgium . New Jersey:IEEE Press , 2015 : 1 - 5 .

MU H , MA Z , ALHAJI M , et al . A fixed low complexity message pass algorithm detector for up-link SCMA system [J ] . IEEE Wireless Communications Letters , 2015 , 4 ( 6 ): 585 - 588 .

DU Y , DONG B , CHEN Z , et al . A fast convergence multiuser detection scheme for uplink SCMA systems [J ] . IEEE Wireless Communications Letters , 2016 , 5 ( 4 ): 388 - 391 .

Huawei . R1-164390 transceiver implementation and complexity analysis for SCMA [R ] . 2016 .

BAYESTEH A , YI E , NIKOPOUR H , et al . Blind detection of SCMA for uplink grant-free multiple access [C ] // IEEE in Wireless Communications Systems (ISWCS),Aug 26-29,2014,Barcelona,Spain . New Jersey:IEEE Press , 2014 : 853 - 857 .

WANG Y , ZHOU S , XIAO L , et al . Sparse Bayesian learning based user detection and channel estimation for SCMA uplink systems [C ] // International Conference on Wireless Communications ＆ Signal Processing (WCSP),Oct 15-17,2015,Nanjing,China . New Jersey:IEEE Press , 2015 : 1 - 5 .

STRUMINSKY K , KRUGLIK S , VETROV D , et al . A new approach for sparse Bayesian channel estimation in SCMA uplink systems [C ] // International Conference on Wireless Communications ＆ Signal Processing (WCSP),Oct 13-15,2016,Yangzhou,China . New Jersey:IEEE Press , 2016 : 1 - 5 .

WANG Y , ZHANG X , ZHOU S , et al . User detection and channel estimation for SCMA uplink system in dispersive channel [C ] // IEEE International Conference on Communication Systems (ICCS),Dec 14-16,2016,Shenzhen,China . New Jersey:IEEE Press , 2016 : 1 - 5 .

HEO E , KIM N , PARK H . Sparse structure-based channel estimation for uplink SCMA system [J ] . IEEE Transactions on Vehicular Technology , 2017 ( 99 ): 1 - 10 .

Fujitsu . R1-166671 DM-RS considerations for UL non-orthogonal multiple access [R ] . 2016 .

3GPP.Evolved universal terrestrial radio access (E-UTRA);physical channels and modulation:TS36.211 [S ] . 2012 .

ZHAO Y , HUANG A . A novel channel estimation method for OFDM mobile communication systems based on pilot signals and transform-domain processing [C ] // IEEE 47th Vehicular Technology Conference Technology,May 4-7,1997,Phoenix,USA . New Jersey:IEEE Press , 1997 ,3 2089 - 2093 .

ZHANG S , XU X , LU L , et al . Sparse code multiple access:An energy efficient uplink approach for 5G wireless systems [C ] // IEEE Global Communications Conference,Dec 8-12,2014,Austin,USA . New Jersey:IEEE Press , 2014 : 4782 - 4787 .

WU Y , ZHANG S , CHEN Y . Iterative multiuser receiver in sparse code multiple access systems [C ] // IEEE International Conference on Communications,June 8-12,2015,London,UK . New Jersey:IEEE Press , 2015 : 2918 - 2923 .

XIAO B , XIAO K , ZHANG S , et al . Iterative detection and decoding for SCMA systems with LDPC codes [C ] // IEEE International Conference on Wireless Communications ＆ Signal Processing,Oct 15-17,2015,Nanjing,China . New Jersey:IEEE Press , 2015 : 1 - 5 .

Huawei Technologies Co.,Ltd . SCMA pre-standardization whitepaper [R ] . 2016 .

3GPP.Study on channel model for frequency spectrum above 6 GHz:TR38.900 [S ] . 2016 .

3GPP.Evolved universal terrestrial radio access (E-UTRA);user equipment (UE) radio transmission and reception:TS36.803 [S ] . 2016 .

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