scholarly journals Pairwise Error Probability Performance of SM-MIMO and Spatially Modulated Cooperative Communication Employing SDF Protocol

2019 ◽  
Vol 8 (6) ◽  
pp. 4755-4761
Keyword(s):  
Power Allocation ◽  
Error Probability ◽  
Mimo System ◽  
Optimal Detection ◽  
Optimal Power Allocation ◽  
Cooperative System ◽  
Decode And Forward ◽  
Pairwise Error Probability ◽  
Optimal Power ◽  
Simulation Results

In this paper, we analyze the performance of spatially modulated (SM) multiple input multiple output (MIMO) system and spatially modulated MIMO cooperative system with multiple relays employing selective decode and forward (SDF) protocol. Here the analysis is done for pre-determined orthogonal channel for SM MIMO and SM MIMO cooperative system using M-PSK modulation and ML detection. Firstly Pairwise error probability (PEP) expression is derived and optimal, sub-optimal detection is done in a spatially modulated MIMO system. Further, the analysis of SDF spatially modulated MIMO cooperative system is extended to single relay and multiple relay configurations. PEP expression is also derived for SDF spatially modulated MIMO cooperative system. Simulation results for the SM MIMO system show optimal detection performs better than suboptimal detection and system performance improves as the number of antenna increases. The simulation results of PEP analysis in the SM MIMO cooperative system include the theoretical PEP, exact PEP and asymptotic PEP and Optimal power allocation (OPA) is also derived for the same. Optimal power allocation for theoretical PEP, exact PEP and asymptotic PEP outperforms the same at equal power allocation

Research on Optimal Power Allocation with SDF and Distributed STBC in Multi-Hop Cooperative MIMO Network

2010 ◽  
Vol 20-23 ◽  
pp. 271-276
Author(s):  
Xiao Rong Xu ◽  
Bao Yu Zheng ◽  
Jian Wu Zhang
Keyword(s):  
Power Allocation ◽  
Cooperative Diversity ◽  
Symbol Error Rate ◽  
Performance Comparison ◽  
Optimal Power Allocation ◽  
Allocation Scheme ◽  
Decode And Forward ◽  
Cooperative Mimo ◽  
Optimal Power ◽  
Simulation Results

Multi-hop cooperative MIMO network that consists of multiple nodes each equipped with single antenna is introduced and investigated. Optimal power allocation scheme with selective decode-and-forward (SDF) cooperative strategy is formulated and solved by means of optimization method with the purpose of minimization of system’s symbol error rate (SER), which are derived and analyzed with numerical results presented. Distributed space-time block Code (DSTBC) in multi-hop cooperative MIMO is analyzed and compared with optimal power allocation scheme with SDF strategy. Simulation results reveal that, cooperative diversity could be achieved with optimal power allocation. Optimum power allocation scheme depends on the relay’s position and channel quality between source to relay and relay to destination. Novel performance comparison between optimal power allocation and DSTBC are researched and presented. Simulation results confirm our theoretical analysis, which indicates that multi-node DSTBC outperforms optimal power allocation scheme due to the fact that cooperative diversity gain and coded gain could be obtained simultaneously for DSTBC in multi-hop cooperative MIMO network.

scholarly journals Closed-Form Expression for the Symbol Error Probability in Full-Duplex Spatial Modulation Relay System and Its Application in Optimal Power Allocation

Sensors ◽  
2019 ◽  
Vol 19 (24) ◽  
pp. 5390 ◽  
Author(s):  
Le Van Nguyen ◽  
Ba Cao Nguyen ◽  
Xuan Nam Tran ◽  
Le The Dung
Keyword(s):  
Power Allocation ◽  
Error Probability ◽  
Spatial Modulation ◽  
Full Duplex ◽  
Closed Form Expression ◽  
Optimal Power Allocation ◽  
Symbol Error Probability ◽  
Form Expression ◽  
Relay System ◽  
Optimal Power

Full-duplex (FD) communication and spatial modulation (SM) are two promising techniques to achieve high spectral efficiency. Recent works in the literature have investigated the possibility of combining the FD mode with SM in the relay system to benefit their advantages. In this paper, we analyze the performance of the FD-SM decode-and-forward (DF) relay system and derive the closed-form expression for the symbol error probability (SEP). To tackle the residual self-interference (RSI) due to the FD mode at the relay, we propose a simple yet effective power allocation algorithm to compensate for the RSI impact and improve the system SEP performance. Both numerical and simulation results confirm the accuracy of the derived SEP expression and the efficacy of the proposed optimal power allocation.

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