scholarly journals BER performance of an MRT-HQAM system over Rayleigh fading channels with channel estimation errors and feedback delay

2018 ◽  
Vol 12 (17) ◽  
pp. 2150-2157 ◽  
Author(s):  
Adam Evans ◽  
Tahmid Quazi ◽  
Hongjun Xu
Keyword(s):  
Channel Estimation ◽  
Fading Channels ◽  
Rayleigh Fading ◽  
Rayleigh Fading Channels ◽  
Feedback Delay ◽  
Estimation Errors ◽  
Channel Estimation Errors ◽  
Ber Performance

scholarly journals Outage Analysis of Partial Relay Selection Schemes with Feedback Delay and Channel Estimation Errors in Nonidentical Rayleigh Fading Channels

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Jung-Bin Kim ◽  
In-Ho Lee
Keyword(s):  
Channel Estimation ◽  
Fading Channels ◽  
Relay Selection ◽  
Rayleigh Fading ◽  
Feedback Delay ◽  
Estimation Errors ◽  
Channel Estimation Errors ◽  
Partial Relay Selection ◽  
Outage Probabilities ◽  
Outdated Csi

This paper investigates the impact of the channel estimation error and outdated channel state information (CSI) on the outage performances of partial relay selection (PRS) and efficient partial relay selection (EPRS). Considering imperfect channel estimation and outdated CSI with decode-and-forward (DF) relaying strategy, closed-form expressions for exact outage probabilities and asymptotic outage probabilities for PRS and EPRS are provided assuming independent and nonidentically distributed Rayleigh fading channels. Numerical investigations verify the analytical expression for outage probability and show how much performance is degraded by the channel estimation errors and the feedback delay that causes the outdated CSI.

Sign in / Sign up

Export Citation Format

Share Document