A 120-mW 0.16-ms-Latency Connectivity-Scalable Multiuser Detector for Interleave Division Multiple Access

2020 ◽  
Author(s):  
Byeong Yong Kong ◽  
In-Cheol Park
Keyword(s):  
Multiple Access ◽  
Multiuser Detector

EXIT-Chart-Aided Hybrid Multiuser Detector for Multicarrier Interleave-Division Multiple Access

2010 ◽  
Vol 59 (3) ◽  
pp. 1563-1567 ◽  
Author(s):  
Rong Zhang ◽  
Lei Xu ◽  
Sheng Chen ◽  
L. Hanzo
Keyword(s):  
Multiple Access ◽  
Exit Chart ◽  
Multiuser Detector

Novel Scheme for Multiple-Access Interference Mitigation with Low Complexity

2011 ◽  
Vol 143-144 ◽  
pp. 371-375
Author(s):  
Zuo Liang Yin ◽  
Hui Xiao Ma ◽  
Xing Peng Mao ◽  
Jun Cai
Keyword(s):  
Multiple Access ◽  
Interference Mitigation ◽  
Multiple Access Interference ◽  
Low Complexity ◽  
System Capacity ◽  
Error Performance ◽  
Multiuser Detector ◽  
Access Scheme ◽  
Lower Complexity

To mitigate multiple access interference and improve the system capacity, an effective multiple access scheme, called GCDMA, is proposed. Exploiting the IDMA iterative multiuser detector in each group, the intra-group interference can be effectively handled. Analysis and simulations demonstrate that the proposed technique outperforms the conventional CDMA in terms of both system capacity and bit error performance. Lower complexity of the proposed scheme can be achieved than CDMA and even IDMA.

scholarly journals Exact Bit Error-Rate Analysis of Two-User NOMA Using QAM with Arbitrary Modulation Orders

2020 ◽  
Author(s):  
Arafat Al-Dweik ◽  
Tasneem Assaf ◽  
Mohamed El Moursi ◽  
Hatem Zein El din ◽  
Mohammad Al-Jarrah
Keyword(s):  
Closed Form ◽  
Power Allocation ◽  
General Expression ◽  
Bit Error Rate ◽  
Error Rate ◽  
Amplitude Modulation ◽  
Interference Cancellation ◽  
Multiple Access ◽  
Rate Analysis ◽  
Multiuser Detector

This work considers the exact bit error rate (BER) analysis of a two-user non-orthogonal multiple access (NOMA) system using quadrature amplitude modulation (QAM). Unlike existing work, no constraints on the modulation order of the QAM symbols for any user. Closed-form expressions are derived for the BER of joint multiuser detector (JMuD), which is demonstrated that it is equivalent to the successive interference cancellation (SIC) receiver. Moreover, a general expression is derived for the relation between the power allocation factors for the two users, which depends on the modulation order for each user.

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