scholarly journals Spectral Efficiency of the Multiway Massive System over Rician Fading Channels

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Junyi He ◽  
Junnan Zhang ◽  
Cheng Song ◽  
Mengxiang Wu
Keyword(s):  
Fading Channels ◽  
Spectral Efficiency ◽  
Large Scale ◽  
Scaling Law ◽  
Analytical Approximation ◽  
Relay Network ◽  
Rician Fading ◽  
Amplify And Forward ◽  
Channel State ◽  
Rician Fading Channels

In this study, we consider a multiway massive multi-input multi-output (MIMO) relay network over Rician fading channels, where all users intend to share their information with the other users via amplify-and-forward (AF) relays equipped with a great number of antennas. More practical, the imperfect channel state information (CSI) is taken into account. To evaluate the performance of the considered networks, we derived an analytical approximation expression for the spectral efficiency with zero-forcing (ZF) receivers in a closed form. To obtain more insights, the asymptotic analysis as the number of relay antenna approaching infinity is carried out. Finally, the power scaling law is analyzed for two scenarios. The results reveal that (1) massive MIMO is capable of compensating the loss caused by Rician fading, (2) the sum spectral efficiency increases with the increase of the Rician factor, and (3) deploying large-scale antenna is effective to save cost and keep performance.

scholarly journals Hybrid TSR–PSR Alternate Energy Harvesting Relay Network over Rician Fading Channels: Outage Probability and SER Analysis

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3839 ◽  
Author(s):  
Tan Nguyen ◽  
Phu Tran Tin ◽  
Duy Ha ◽  
Miroslav Voznak ◽  
Phuong Tran ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Outage Probability ◽  
Fading Channels ◽  
Relay Network ◽  
Rician Fading ◽  
Power Splitting ◽  
Amplify And Forward ◽  
System Parameters ◽  
Alternate Energy ◽  
Rician Fading Channels

In this research, we investigate a hybrid time-switching relay (TSR)–power-splitting relay (PSR) alternate energy harvesting (EH) relaying network over the Rician fading channels. For this purpose, the amplify-and-forward (AF) mode is considered for the alternative hybrid time TSR–PSR. The system model consists of one source, one destination and two alternative relays for signal transmission from the source to the destination. In the first step, the exact and asymptotic expressions of the outage probability and the symbol errors ratio (SER) are derived. Then, the influence of all system parameters on the system performance is investigated, and the Monte Carlo simulation verifies all results. Finally, the system performances of TSR–PSR, TSR, and PSR cases are compared in connection with all system parameters.

Statistical 3-D Beamforming for Large-Scale MIMO Downlink Systems Over Rician Fading Channels

2016 ◽  
Vol 64 (4) ◽  
pp. 1529-1543 ◽  
Author(s):  
Xiao Li ◽  
Shi Jin ◽  
Himal A. Suraweera ◽  
Jia Hou ◽  
Xiqi Gao
Keyword(s):  
Fading Channels ◽  
Large Scale ◽  
Rician Fading ◽  
Mimo Downlink ◽  
Rician Fading Channels

Noncoherent Amplify-and-Forward MIMO Relaying With OSTBC Over Rayleigh–Rician Fading Channels

2013 ◽  
Vol 62 (4) ◽  
pp. 1610-1622 ◽  
Author(s):  
L. Keeth Saliya Jayasinghe ◽  
Nandana Rajatheva ◽  
Prathapasinghe Dharmawansa ◽  
Matti Latva-Aho
Keyword(s):  
Fading Channels ◽  
Rician Fading ◽  
Amplify And Forward ◽  
Rician Fading Channels
Sign in / Sign up

Export Citation Format

Share Document