针对MIMO-NOMA系统中配对弱用户的空时编码方案

doi:10.11959/j.issn.1000-436x.2018109

Abstract

Abstract:

In view of the paired weak user’s poor outage performance in multiple-input multiple-output non-orthogonal multiple access (MIMO-NOMA) systems,Alamouti code was adopted to encode for the weak user in order to improve its outage performance by means of diversity,and the closed-form expression of the strong user’s ergodic capacity as well as the boundary-form expressions of the weak user’s ergodic capacity and outage probability was derived in the proposed model.Moreover,a power allocation algorithm for optimizing the system’s throughput was proposed.Finally,the numerical results show the accuracy of the derived expressions,the efficacy of the proposed algorithm,and that the weak user’s outage performance in the proposed coding scheme is far superior to that in the current coding scheme only adopting vertical Bell lab layered space-time (V-BLAST) code.

Key words: NOMA, MIMO, Alamouti code, paired users, space-time coding

CLC Number:

TN929.5

Mingyan GONG,Zhen YANG. Space-time coding scheme for the paired weak user in MIMO-NOMA systems[J]. Journal on Communications, 2018, 39(6): 181-189.

Figures/Tables 9

发送信息	第1个时间片(n=1)	第2个时间片(n=2)
$S_{n}$	$\sqrt{α P} (\begin{matrix} s_{1}^{1} \\ s_{2}^{1} \end{matrix}) + \sqrt{β P} (\begin{matrix} s_{1}^{2} \\ s_{2}^{2} \end{matrix})$	$\sqrt{α P} (\begin{matrix} s_{3}^{1} \\ s_{4}^{1} \end{matrix}) + \sqrt{β P} (\begin{matrix} (s_{2}^{2})^{} \\ - (s_{1}^{2})^{} \end{matrix})$

接收信息	第1个时间片(n=1)	第2个时间片(n=2)
$y_{n_{1}}^{1}$	$\| \| h_{1} \| \| (\sqrt{α P} s_{1}^{1} + \sqrt{β P} s_{1}^{2}) + n_{11}^{1}$	$\|\| h_{1} \| \| (\sqrt{α P} s_{3}^{1} + \sqrt{β P} (s_{2}^{2})^{*}) + n_{21}^{1}$
$y_{n_{2}}^{1}$	$\| \| h_{2} \| \| (\sqrt{α P} s_{2}^{1} + \sqrt{β P} s_{2}^{2}) + n_{12}^{1}$	$\| \| h_{2} \| \| (\sqrt{α P} s_{4}^{1} - \sqrt{β P} (s_{1}^{2})^{*}) + n_{22}^{1}$

接收信息	第1个时间片(n=1)	第2个时间片(n=2)
$y_{n_{1}}^{2}$	$a \| \| h_{1} \| \| (\sqrt{α P} s_{1}^{1} + \sqrt{β P} s_{1}^{2}) + n_{11}^{2}$	$a \| \| h_{1} \| \| (\sqrt{α P} s_{3}^{1} + \sqrt{β P} (s_{2}^{2})^{*}) + n_{21}^{2}$
$y_{n_{2}}^{2}$	$a \| \| h_{2} \| \| (\sqrt{α P} s_{2}^{1} + \sqrt{β P} s_{2}^{2}) + n_{12}^{2}$	$a \| \| h_{2} \| \| (\sqrt{α P} s_{4}^{1} - \sqrt{β P} (s_{1}^{2})^{*}) + n_{22}^{2}$

SIC后信息	第1个时间片(n=1)	第2个时间片(n=2)
$r_{n_{1}}$	$\| \| h_{1} \| \| \sqrt{α P} s_{1}^{1} + n_{11}^{1}$	$\| \| h_{1} \| \| \sqrt{α P} s_{3}^{1} + n_{21}^{1}$
$r_{n_{2}}$	$\| \| h_{2} \| \| \sqrt{α P} s_{2}^{1} + n_{12}^{1}$	$\| \| h_{2} \| \| \sqrt{α P} s_{4}^{1} + n_{22}^{1}$

References 16

[1]	RIAZUL S , AVAZOV N , DOBRE O ,et al. Power-domain non-orthogonal multiple access (NOMA) in 5G systems:potentials and challenges[J]. IEEE Communications Surveys ＆ Tutorials, 2017,19(2): 721-742.
[2]	DAI L , WANG B , YUAN Y ,et al. Non-orthogonal multiple access for 5G:solutions,challenges,opportunities and future research trends[J]. IEEE Communications Magazine, 2015,53(9): 74-81.
[3]	DING Z , ADACHI F , POOR H V . The application of MIMO to non-orthogonal multiple access[J]. IEEE Transactions on Wireless Communications, 2016,15(1): 537-552.
[4]	LAN Y , BENJEBBOUR A , CHEN X , LI A ,et al. Considerations on downlink non-orthogonal multiple access (NOMA) combined with closed-loop SU-MIMO[C]// 2014 8th International Conference on Signal Processing and Communication Systems (ICSPCS). 2014: 1-5.
[5]	HIGUCHI K , KISHIYAMA Y . Non-orthogonal access with random beamforming and intra-beam SIC for cellular MIMO downlink[C]// IEEE 78th Vehicular Technology Conference. 2013: 1-5.
[6]	LI M , HOSSAIN E , KIM D . Non-orthogonal multiple access (NOMA) for downlink multiuser MIMO systems:user clustering,beamforming,and power allocation[J]. IEEE Access, 2017,5: 565-577.
[7]	KIM B , LIM S , KIM H . Non-orthogonal multiple access in a downlink multiuser beamforming system[C]// IEEE Military Communication Conference. 2013: 1278-1283.
[8]	SEYAMA T , DATEKI T , SEKI H . Efficient selection of user sets for downlink non-orthogonal multiple access[C]// 2015 IEEE 26th Annu.International Symposium on Personal,Indoor,and Mobile Radio Communications (PIMRC). 2015: 1062-1066.
[9]	KIM J , KOH J , KANG J . Design of user clustering and precoding for downlink non-orthogonal multiple access (NOMA)[C]// IEEE Military Communication Conference (MILCOM). 2015: 1170-1175.
[10]	SUN Q , HAN S , XU Z ,et al. Sum rate optimization for MIMO non-orthogonal multiple access systems[C]// 2015 IEEE Wireless Communications and Networking Conference (WCNC). 2015: 747-752.
[11]	LIU F , MAHONE P , PETROVA M . Proportional fairness-based user pairing and power allocation for non-orthogonal multiple access[C]// IEEE 26th Annual International Symposium Personal,Indoor,and Mobile Radio Communication (PIMRC). 2015: 1127-1131.
[12]	OTAO N , KISHIYAMA Y , HIGUCHI K . Performance of non-orthogonal access with SIC in cellular downlink using proportional fair-based resource allocation[C]// 2012 International Symposium on Wireless Communication System (ISWCS). 2012: 476-480.
[13]	TARIGHAT A , SADEK M , SAYED A H . Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels[J]. IEEE Transactions on Signal Processing, 2004,52(2): 461-471.
[14]	CHEN X , BENJEBBOUR A , LAN Y . Evaluations of downlink non-orthogonal multiple access (noma) combined with SU-MIMO[C]// IEEE 25th Annual International Symposium on Personal,Indoor,and Mobile Radio Communications (PIMRC). 2014: 1887-1891.
[15]	ALAMOUTI S . A simple transmit diversity technique for wireless communications[J]. IEEE Journal on Selected Areas in Communications, 1998,16(8): 1451-1458.
[16]	YANG Q , WANG H , LEE M . NOMA in downlink SDMA with limited feedback:performance analysis and optimization[J]. IEEE Journal on Selected Areas in Communications, 2017,35(10): 2281-2294.

Metrics

Recommended 0

No Suggested Reading articles found!

Space-time coding scheme for the paired weak user in MIMO-NOMA systems

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 9

References 16

Related Articles 15

Metrics

Recommended 0

[1]	Qianyi DAI, Bin ZHANG, Song GUO, Kaiyong XU. Blockchain network layer anomaly traffic detection method based on multiple classifier integration [J]. Journal on Communications, 2023, 44(3): 66-80.
[2]	Lei ZHANG, Yu WANG, Jianjie TIAN, Lin ZHANG, Tianjiao ZHANG. Joint beam forming design for IRS-aided MIMO Internet of vehicles system [J]. Journal on Communications, 2023, 44(2): 59-69.
[3]	Weigang HUO, Rui LIANG, Yonghua LI. Anomaly detection model for multivariate time series based on stochastic Transformer [J]. Journal on Communications, 2023, 44(2): 94-103.
[4]	Zheng YANG, Yun ZHENG, Yuehao YU, Yi WU, Zhicheng DONG, Song XING. Performance analysis for cooperative NOMA networks based SWIPT with adaptive power splitting [J]. Journal on Communications, 2023, 44(1): 177-188.
[5]	Jianxin LIAO, Xiaoyuan FU, Qi QI, Jingyu WANG, Haifeng SUN. 6G-ADM: knowledge based 6G network management and control architecture [J]. Journal on Communications, 2022, 43(6): 3-15.
[6]	Gangcan SUN, Xinli WU, Wanming HAO, Zhengyu ZHU. Hybrid precoding and power allocation for mmWave NOMA systems based on time delay line arrays [J]. Journal on Communications, 2022, 43(6): 179-188.
[7]	Yong LIAO, Shiyi WANG. CSI feedback algorithm based on RM-Net for massive MIMO systems in high-speed mobile environment [J]. Journal on Communications, 2022, 43(5): 166-176.
[8]	Pengcheng GONG, Yuntao WU. Improved transmit beamforming design based on ADMM for low probability of intercept of FDA-MIMO radar [J]. Journal on Communications, 2022, 43(4): 133-142.
[9]	Xueyuan DUAN, Yu FU, Kun WANG. Multi-dimensional time series anomaly detection method based on VAE-WGAN [J]. Journal on Communications, 2022, 43(3): 1-13.
[10]	Yu ZHANG, Xiongwen ZHAO, Xiaoqing WANG, Suiyan GENG, Peng QIN, Zhenyu ZHOU. Robust resource allocation algorithm for multicarrier NOMA security communication system [J]. Journal on Communications, 2022, 43(3): 42-52.
[11]	Ping WU, Chaowen CHANG, Zhibin ZUO, Yingying MA. Address overloading-based packet forwarding verification in SDN [J]. Journal on Communications, 2022, 43(3): 88-100.
[12]	Haili SUN, Xiang LONG, Lansheng HAN, Yan HUANG, Qingbo LI. Overview of anomaly detection techniques for industrial Internet of things [J]. Journal on Communications, 2022, 43(3): 196-210.
[13]	Gang LIU, Zengjin LOU, Qinhua LIN, Yi GUO. Low complexity signal detection algorithm based on Newton iterative algorithm [J]. Journal on Communications, 2022, 43(2): 109-117.
[14]	Zhuo CHEN, Miao ZHU, Junwei DU. Multi-view graph neural network for fraud detection algorithm [J]. Journal on Communications, 2022, 43(11): 225-232.
[15]	Xueyuan DUAN, Yu FU, Kun WANG, Taotao LIU, Bin LI. Network traffic anomaly detection method based on multi-scale characteristic [J]. Journal on Communications, 2022, 43(10): 65-76.