Achievable Diversity Order of HARQ-Aided Downlink NOMA Systems

2020 ◽  
Vol 69 (1) ◽  
pp. 471-487 ◽  
Author(s):  
Zheng Shi ◽  
Chenmeng Zhang ◽  
Yaru Fu ◽  
Hong Wang ◽  
Guanghua Yang ◽  
...  
Keyword(s):  
Diversity Order

On Performance of Combining Methods for Three-Node Relay Network

2012 ◽  
Vol 263-266 ◽  
pp. 1160-1164
Author(s):  
Wen Yuan Rao
Keyword(s):  
Relay Network ◽  
Estimation Accuracy ◽  
Diversity Order ◽  
Amplify And Forward ◽  
Decode And Forward ◽  
Channel Quality ◽  
Combining Methods ◽  
Better Than

We study the performance of the three-node relay network. Three combining methods for the Amplify-and-Forward (AF) protocol and the Decode-and-Forward (DF) protocol are compared. Simulations indicate that the AF protocol is better than DF under all these three combining methods. To combine the incoming signals the channel quality should be estimated as accuracy as possible, more estimation accuracy requires more resource. A very simple combining method can obtain the performance comparative with optimal combining methods approximately. At the same time, all three combining methods for both diversity protocols can achieve the maximum diversity order.

Diversity Order of Spatial Multiplexing with Transmit Antenna Correlation Based Precoding

2009 ◽  
pp. 477-484
Author(s):  
Christian Hofbauer ◽  
Yann Lebrun ◽  
Valéry Ramon ◽  
André Bourdoux ◽  
François Horlin ◽  
...  
Keyword(s):  
Spatial Multiplexing ◽  
Diversity Order ◽  
Antenna Correlation
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