Results 191 to 200 of about 3,472,430 (240)

Ergodic Capacity Analysis for FSO Communications with UAV-Equipped IRS in the Presence of Pointing Error

International Conference on Speech Technology and Human-Computer Dialogue, 2020
This paper proposes an intelligent reflecting surface (IRS) carried by an Unmanned Aerial Vehicle (UAV) for laser path controllable free-space optical (FSO) communication system.
Haocheng Jia, J. Zhong, M. Janardhanan, Gaojie Chen   +3 more
semanticscholar   +1 more source

Impact of Hardware Impairments on the Outage Probability and Ergodic Capacity of One-Way and Two-Way Full-Duplex Relaying Systems

IEEE Transactions on Vehicular Technology, 2020
Hardware impairments (HI) always exist in wireless devices, especially the low-cost ones. However, due to the complicated mathematical analysis, previous studies on wireless networks usually neglected the HI, particularly for full-duplex relaying (FDR ...
B. Nguyen, X. Tran, Dinh Tan Tran, X. Pham, L. Dung   +4 more
semanticscholar   +1 more source

On the ergodic capacity of MIMO Nakagami-fading channels

2008 IEEE International Symposium on Information Theory, 2008
This paper investigates the ergodic capacity limit of multiple-input multiple-output (MIMO) Nakagami-fading channels for arbitrary finite number of antennas. Through the use of majorization theory, we derive ergodic capacity bounds for this general class of channels.
Caijun Zhong, Kai-Kit Wong, Shi Jin 0002
openaire   +1 more source

Ergodic capacity region for the uplink OFDMA network

2012 International Conference on Wireless Communications and Signal Processing (WCSP), 2012
In this paper, the resource allocation policy and algorithm for the uplink Orthogonal Frequency Division Multiple Access (OFDMA) network over the fading channel is studied. With the convex optimization theory, the optimal resource allocation is formulated as a weighted ergodic sum rate maximization problem.
Zelang Wang, Huifang Chen, Lei Xie 0003
openaire   +1 more source

A G-estimator of the MIMO channel ergodic capacity

2009 IEEE International Symposium on Information Theory, 2009
In this paper, we deal with the estimation of the ergodic capacity of large MIMO systems, using training sequences whose lengths are of the same order of magnitude than the number of antennas. In this context, the traditional estimator becomes inconsistent.
Vallet, Pascal, Loubaton, Philippe
openaire   +2 more sources

On the capacity of ergodic channels: A large deviation analysis

9th International Conference on Communications and Networking in China, 2014
The convergence behavior of capacity of ergodic channels is of great importance for the performance analysis of communication systems. This paper presents a fundamental study on the convergence rate of capacity of ergodic channels on the basis of large deviation theory.
Yuan Qi 0002, Rongrong Qian, Hongyu Wang, Tao Peng 0001, Wenbo Wang 0007   +4 more
openaire   +1 more source

Ergodic Capacity Analysis of Reconfigurable Intelligent Surface Assisted MIMO Systems With a Practical Phase Shift and Amplitude Response

IEEE Transactions on Vehicular Technology
Reconfigurable intelligent surface (RIS) has emerged as a promising technology for enhancing the performance of wireless communication systems. However, the extent of this enhancement has yet to be defined in a simple and insightful manner, especially ...
Marjan Abbasi Mosleh, F. Héliot, Rahim Tafazolli   +2 more
semanticscholar   +1 more source

Ergodic channel capacity for generalized fading channels

2014 IEEE Wireless Communications and Networking Conference (WCNC), 2014
The ergodic channel capacity (ECC) of single-branch receivers is studied under the scenarios described by means of α-η-μ, α-к-μ, and α-λ-μ-η generalized fading channels. Novel expressions are derived, which are the most general in this scientific area.
Anastasios K. Papazafeiropoulos, Tharmalingam Ratnarajah   +1 more
openaire   +1 more source

Ergodic Capacity Optimization for RSMA-Based UOWC Systems Over EGG Turbulence Channel

IEEE Communications Letters
Underwater optical wireless communication (UOWC) systems encounter significant challenges from oceanic turbulence and pointing errors. This study investigates the performance of rate-splitting multiple access (RSMA)-enabled multi-user UOWC systems ...
Ziyaur Rahman, Md. Zoheb Hassan, Georges Kaddoum   +2 more
semanticscholar   +1 more source

Estimating the Ergodic Capacity of Log-Normal Channels

IEEE Communications Letters, 2007
In this paper, we first provide a very accurate estimation of the capacity of a single-input single-output system operating in a log-normal environment. Then, hinging on the fact that the sum of log-normal Random Variables (RV) is well approximated by another log-normal RV, we apply the obtained results to find the capacity of Maximum Ratio Combining ...
Amine Laourine, Alex Stephenne, Sofiène Affes   +2 more
openaire   +1 more source