scholarly journals Design and Performance Evaluation of Load-Modulation MIMO System Using High-Order Modulation

2015 ◽  
Vol 40 (11) ◽  
pp. 2121-2130 ◽  
Author(s):  
Dong-Hyung Lee ◽  
Changyoung An ◽  
Heung-Gyoon Ryu
Keyword(s):  
Performance Evaluation ◽  
Mimo System ◽  
High Order ◽  
Load Modulation ◽  
And Performance ◽  
High Order Modulation

The Error Performance Evaluation of Pulse Position Modulation with Hadamard Code in High Order Modulation of Optical Wireless System

2020 ◽  
pp. 2130001
Author(s):  
Agha Yasir Ali ◽  
Samiya Asghar ◽  
Rumaisa Iftikhar ◽  
Wang Shujun
Keyword(s):  
Performance Evaluation ◽  
Error Probability ◽  
High Order ◽  
Pulse Position Modulation ◽  
Optical Wireless ◽  
Error Performance ◽  
Wireless System ◽  
The Cost ◽  
Hadamard Code ◽  
High Order Modulation

This paper investigates the error probability of our proposed modulation technique which is produced by combining the existing pulse position modulation (PPM) technique with Hadamard code (HC). Moreover, the HC is also combined with differential PPM (DPPM). The error performances of existing technique and the proposed technique are compared at high-order modulation (HOM) and low-order modulation. The results show that the error performance of the proposed technique outperforms at HOM at the cost of higher bandwidth. This error performance is improved due to the bipolar nature of HC and it reduces the power requirements of the system.

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