Quasi-Orthogonal STBC with Adaptive Power Allocation under Imperfect Channel Estimation

2007 ◽  
Author(s):  
Changyeul Huh ◽  
Donghun Lee ◽  
Kiseon Kim
Keyword(s):  
Channel Estimation ◽  
Power Allocation ◽  
Imperfect Channel Estimation ◽  
Adaptive Power

scholarly journals Optimal power allocation for SM-OFDM systems with imperfect channel estimation

2016 ◽  
Vol 89 ◽  
pp. 263-269 ◽  
Author(s):  
Feng Yu ◽  
Lijun Song ◽  
Xia Lei ◽  
Yue Xiao ◽  
Zhao Xiang Jiang ◽  
...  
Keyword(s):  
Channel Estimation ◽  
Power Allocation ◽  
Optimal Power Allocation ◽  
Ofdm Systems ◽  
Imperfect Channel Estimation ◽  
Optimal Power

scholarly journals Adaptive Power Allocation and Splitting with Imperfect Channel Estimation in Energy Harvesting Based Self-Organizing Networks

2016 ◽  
Vol 2016 ◽  
pp. 1-7
Author(s):  
Kisong Lee ◽  
JeongGil Ko
Keyword(s):  
Energy Transfer ◽  
Energy Harvesting ◽  
Channel Estimation ◽  
Power Allocation ◽  
Wireless Channel ◽  
Network Systems ◽  
Adaptive Power ◽  
Continuous Power ◽  
Self Organizing Networks ◽  
Self Organizing

As miniature-sized embedded computing platforms are ubiquitously deployed to our everyday environments, the issue of managing their power usage becomes important, especially when they are used in energy harvesting based self-organizing networks. One way to provide these devices with continuous power is to utilize RF-based energy transfer. Previous research in RF-based information and energy transfer builds up on the assumption that perfect channel estimation is easily achievable. However, as our preliminary experiments and many previous literature in wireless network systems show, making perfect estimations of the wireless channel is extremely challenging due to their quality fluctuations. To better reflect reality, in this work, we introduce an adaptive power allocation and splitting (APAS) scheme which takes imperfect channel estimations into consideration. Our evaluation results show that the proposed APAS scheme achieves near-optimal performances for transferring energy and data over a single RF transmission.

scholarly journals Optimal Power Allocation for PSM-OFDM Systems With Imperfect Channel Estimation

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 18994-19006 ◽  
Author(s):  
You Li ◽  
Yashan Pang ◽  
Wanbin Tang ◽  
Xia Lei ◽  
Yue Xiao
Keyword(s):  
Channel Estimation ◽  
Power Allocation ◽  
Optimal Power Allocation ◽  
Ofdm Systems ◽  
Imperfect Channel Estimation ◽  
Optimal Power
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