Results 21 to 30 of about 159,611 (219)
Algorithms, 2021 Due to its ability to significantly improve the wireless communication efficiency, the intelligent reflective surface (IRS) has aroused widespread research interest.
Wei Huang +5 more
doaj +1 more source
Outage Performance of the Full-Duplex Two-Way DF Relay System Under Imperfect CSI
IEEE Access, 2017 Contrary to the most existing works about the full-duplex (FD) relaying with perfect channel state information (CSI), this paper studies the outage performance of the two-way FD decode-and-forward relay network under the joint effects of the residual ...
Cheng Li +5 more
doaj +1 more source
Impact of Imperfect Channel State Information on RS Coding Aided Hybrid-ARQ in Rayleigh Fading Channels [PDF]
, 2010 Hybrid Automatic-Repeat-reQuest (ARQ) schemes are capable of maintaining reliable communications for transmission over hostile wireless channels. In coherent detection aided schemes, the achievable performance substantially depends on the accuracy of ...
H. A. Ngo +3 more
core +1 more source
Impact of estimation error on two-way relaying with relay antenna selection
ICT Express, 2018 This paper presents the performance analysis of two-time-slot two-way relaying while considering dual antennas at the relay and imperfect channel state information (CSI) at the receivers. We consider the Max–Min antenna selection scheme at the relay. For
Md. Noor-A-Rahim, Yong Liang Guan
doaj +1 more source
Outage Performance Analysis of Imperfect-CSI-Based Selection Cooperation in Random Networks [PDF]
Selection of relays is central to efficient utilization of cooperative diversity gains when multiple relays are available in the network. Such selection is generally based on some form of channel state information (CSI), which is always imperfect in ...
Tukmanov A +3 more
core +4 more sources
Secrecy Enhancing Scheme for Spatial Modulation Using Antenna Selection and Artificial Noise
Entropy, 2019 In this paper, we present a new secrecy-enhancing scheme for the spatial modulation (SM) system, by considering imperfect channel state information (CSI). In the proposed scheme, two antennas are activated at the same time.
Pingping Shang +4 more
doaj +1 more source
Relay Precoder Optimization in MIMO-Relay Networks With Imperfect CSI
, 2011 In this paper, we consider robust joint designs of relay precoder and destination receive filters in a nonregenerative multiple-input multiple-output (MIMO) relay network.
A. Chockalingam +4 more
core +2 more sources
NOMA in multiuser MIMO systems with imperfect CSI
2017 IEEE 18th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2017 This paper considers the use of NOMA in multiuser MIMO systems in practical scenarios where CSI is acquired through pilot signaling. A new NOMA scheme that uses shared pilots is proposed. Achievable rate analysis is carried out for a pilot signaling scheme including both uplink and downlink pilots.
Hei Victor Cheng +2 more
openaire +3 more sources
Joint Effects of Imperfect CSI and SIC on NOMA Based Satellite-Terrestrial Systems
IEEE Access, 2021 This paper investigates a satellite-terrestrial system employing the non-orthogonal multiple access (NOMA) scheme over Shadowed-Rician fading channels.
Jinlong Zhao +3 more
doaj +1 more source
Downlink Power Allocation Optimization in Pattern Division Multiple Access
IEEE Access, 2021 Non-orthogonal multiple access (NOMA), in particular pattern division multiple access (PDMA), has been recently considered as the critical multiple access technologies deployed for 5G applications.
Jie Zeng +5 more
doaj +1 more source