Angularly stable frequency selective surface for the gain enhancement of isolated multiple input multiple output antenna

2021 ◽  
Author(s):  
Saeed Ur Rahman ◽  
Hai Deng ◽  
Muhammad Sajjad ◽  
Arshad Rauf ◽  
Zeeshan Shafiq ◽  
...  
Keyword(s):  
Multiple Input Multiple Output ◽  
Frequency Selective Surface ◽  
Gain Enhancement ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Stable Frequency ◽  
Frequency Selective

scholarly journals Modulation-mode and power assignment in broadband MIMO systems

2009 ◽  
Vol 22 (3) ◽  
pp. 313-327 ◽  
Author(s):  
Andreas Ahrens ◽  
César Benavente-Peces
Keyword(s):  
Mimo Systems ◽  
Multiple Input Multiple Output ◽  
Receiver Side ◽  
Power Assignment ◽  
Data Throughput ◽  
Modulation Mode ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Minimum Number ◽  
Frequency Selective

Since the capacity of multiple-input multiple-output (MIMO) systems increases linearly with the minimum number of antennas at both, the transmitter as well as the receiver side, MIMO schemes have attracted a lot of attention. However, non-frequency selective MIMO links have reached a state of maturity. By contrast, frequency selective MIMO links require substantial further research, leading in this contribution to a joint optimization of the number of activated MIMO layers and the number of bits per symbol along with the appropriate allocation of the transmit power under the constraint of a given fixed data throughput. Our results show that in order to achieve the best possible bit-error rate, not necessarily all MIMO layers have to be activated. .

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