Outage analysis of two-way amplify-and-forward relaying system with imperfect channel state information

2016 ◽  
Author(s):  
Siye Wang ◽  
Mingyao Wang ◽  
Boyu Jia ◽  
Yonghua Li
Keyword(s):  
Channel State Information ◽  
Imperfect Channel State Information ◽  
Amplify And Forward ◽  
Channel State ◽  
State Information ◽  
Amplify And Forward Relaying ◽  
Relaying System ◽  
Outage Analysis

scholarly journals On the Performance of Energy Harvesting Non-Orthogonal Multiple Access Relaying System with Imperfect Channel State Information over Rayleigh Fading Channels

Sensors ◽  
2019 ◽  
Vol 19 (15) ◽  
pp. 3327 ◽  
Author(s):  
Tran Manh Hoang ◽  
Nguyen Le Van ◽  
Ba Cao Nguyen ◽  
Le The Dung
Keyword(s):  
Energy Harvesting ◽  
Fading Channels ◽  
Channel State Information ◽  
Multiple Access ◽  
Rayleigh Fading ◽  
Imperfect Channel State Information ◽  
Amplify And Forward ◽  
Channel State ◽  
State Information ◽  
Relaying System

In this paper, we propose a non-orthogonal multiple access (NOMA) relaying system, where a source node communicates simultaneously with multiple users via the assistance of the best amplify-and-forward (AF) relay. The best relay is selected among N relays which are capable of harvesting the energy from radio frequency (RF) signals. We analyze the performance of the proposed NOMA relaying system in the conditions of imperfect channel state information (CSI) and Rayleigh fading by deriving the exact expressions of the outage probability (OP) and the approximate expression of the ergodic capacities of each user and the whole system. We also determine the optimal energy harvesting duration which minimizes the OP. Numerical results show that, for the same parameter settings, the performance of the proposed NOMA relaying system, especially the ergodic capacity of the whole system, outperforms that of the orthogonal-multiple-access (OMA) relaying system. Monte-Carlo simulations are used to validate the correctness of the analytical results.

scholarly journals Transceiver Designs for MIMO Relaying Systems with Imperfect Channel State Information

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Bridget Durowaa Antwi-Boasiako ◽  
Changick Song ◽  
Kyoung-Jae Lee
Keyword(s):  
Channel State Information ◽  
Minimum Mean Square Error ◽  
Multiple Input Multiple Output ◽  
Imperfect Channel State Information ◽  
Amplify And Forward ◽  
Channel State ◽  
State Information ◽  
Closed Form Solutions ◽  
Relaying Systems ◽  
Transceiver Designs

We focus on imperfect channel state information (ICSI) in closed-loop multiple-input multiple-output (MIMO) amplify-and-forward (AF) relaying systems. First, near-optimal closed-form solutions for transceiver designs are provided for the source-to-relay-to-destination link with ICSI at all nodes. Next, considering a nonnegligible direct link with ICSI available only at the relay and destination and no CSI or ICSI at the source, near-optimal designs are proposed. The Wiener or minimum mean square error (MMSE) filter is employed at the destination to estimate the transmitted signal. The effect of CSI mismatch on the performance of the proposed scheme is then shown through simulations.

Finite-SNR outage analysis for MIMO channels with imperfect channel state information

2017 ◽  
Vol 22 ◽  
pp. 58-64 ◽  
Author(s):  
Nandita Lavanis ◽  
Devendra Jalihal ◽  
Arun Pachai Kannu ◽  
Srikrishna Bhashyam
Keyword(s):  
Channel State Information ◽  
Imperfect Channel State Information ◽  
Mimo Channels ◽  
Channel State ◽  
State Information ◽  
Outage Analysis
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