• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Joint Space-time Coding and Power Domain Non-orthogonal Multiple Access for Future Wireless System

Vol. 14, No. 1, January 31, 2020
10.3837/tiis.2020.01.006, Download Paper (Free):

Abstract

According to information theory, non-orthogonal transmission can achieve the multiple-user channel capacity with an onion-peeling like successive interference cancellation (SIC) based detection followed by a capacity approaching channel code. However, in multiple antenna system, due to the unideal characteristic of the SIC detector, the residual interference propagated to the next detection stage will significantly degrade the detection performance of spatial data layers. To overcome this problem, we proposed a modified power-domain non-orthogonal multiple access (P-NOMA) scheme joint designed with space-time coding for multiple input multiple output (MIMO) NOMA system. First, with proper power allocation for each user, inter-user signals can be separated from each other for NOMA detection. Second, a well-designed quasi-orthogonal space-time block code (QO-STBC) was employed to facilitate the SIC-based MIMO detection of spatial data layers within each user. Last, we proposed an optimization algorithm to assign channel coding rates to balance the bit error rate (BER) performance of those spatial data layers for each user. Link-level performance simulation results demonstrate that the proposed time-space-power domain joint transmission scheme performs better than the traditional P-NOMA scheme. Furthermore, the proposed algorithm is of low complexity and easy to implement.


Statistics

Show / Hide Statistics

Statistics (Cumulative Counts from December 1st, 2015)
Multiple requests among the same browser session are counted as one view.
If you mouse over a chart, the values of data points will be shown.


Cite this article

[IEEE Style]
J. Xu, H. Ding, Z. Yu, Z. Zhang, W. Liu and X. Chen, "Joint Space-time Coding and Power Domain Non-orthogonal Multiple Access for Future Wireless System," KSII Transactions on Internet and Information Systems, vol. 14, no. 1, pp. 93-113, 2020. DOI: 10.3837/tiis.2020.01.006.

[ACM Style]
Jin Xu, Hanqing Ding, Zeqi Yu, Zhe Zhang, Weihua Liu, and Xueyan Chen. 2020. Joint Space-time Coding and Power Domain Non-orthogonal Multiple Access for Future Wireless System. KSII Transactions on Internet and Information Systems, 14, 1, (2020), 93-113. DOI: 10.3837/tiis.2020.01.006.

[BibTeX Style]
@article{tiis:23223, title="Joint Space-time Coding and Power Domain Non-orthogonal Multiple Access for Future Wireless System", author="Jin Xu and Hanqing Ding and Zeqi Yu and Zhe Zhang and Weihua Liu and Xueyan Chen and ", journal="KSII Transactions on Internet and Information Systems", DOI={10.3837/tiis.2020.01.006}, volume={14}, number={1}, year="2020", month={January}, pages={93-113}}