Robust Energy-Efficient Power Loading for MIMO System under Imperfect CSI
نویسندگان
چکیده
In this paper, we will analyze the energy efficient power loading in MIMO-SVD architecture. Existing power loading schemes are developed on assumption that a scheduler possesses perfect channel state information (CSI). But we take into account the effects of channel estimation error (CEE) and propose a robust energy-efficient power loading for MIMO system under imperfect CSI. We propose two algorithms to solve the optimization problem. The simulation results show the effectiveness of our proposed power loading scheme.
منابع مشابه
UEP MIMO-OFDM with Beamforming- Combining for Imperfect Channel Information
In this paper, unequal error protection (UEP) adaptive multiple-input multiple-output (MIMO) system using orthogonal frequency division multiplexing (OFDM) is considered. Our proposed transmission scheme consists of three stages. The inner stage is a UEP adaptive loading, which is introduced to fulfill a certain UEP profile by distributing bits and power across the unitarily transformed eigenbe...
متن کاملMIMO-THP System with Imperfect CSI
In recent years, it was realized that designing wireless digital communication systems to more efficiently exploit the spatial domain of the transmission medium, allows for a significant increase of spectral efficiency. These systems, in general case, are known as Multiple Input Multiple Output (MIMO) systems and have received considerable attention of researchers and commercial companies due t...
متن کاملWorst-Case Energy Efficiency Maximization in a 5G Massive MIMO-NOMA System
In this paper, we examine the robust beamforming design to tackle the energy efficiency (EE) maximization problem in a 5G massive multiple-input multiple-output (MIMO)-non-orthogonal multiple access (NOMA) downlink system with imperfect channel state information (CSI) at the base station. A novel joint user pairing and dynamic power allocation (JUPDPA) algorithm is proposed to minimize the inte...
متن کاملRobust Optimization for MIMO Transmissions with Imperfect CSI
We investigate the problem of robust joint transmitter and receiver power allocation for uplink multiuser multi-input multi-output (MIMO) transmissions. The channel model is assumed to have Rayleigh flat fading. The objective of power allocation is to minimize the maximum MSE among all users each of which has limited transmit power. We investigate robust joint transmitter and receiver power all...
متن کاملSpatial multiplexing over Rician fading channels: Linear precoding transmission strategies
Using information about the channel at the transmitter can improve the performance of multi-input multi-output (MIMO) communication systems. When perfect channel state information (CSI) is available, data can be multiplexed and optimized over independent spatial channels. However, when the available channel information is imperfect or partial, crosstalk between the spatial channels is inevitabl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- IJSNet
دوره 18 شماره
صفحات -
تاریخ انتشار 2012