Intelligent Reflecting Surface-Assisted Multi-User MISO Communication: Channel Estimation and Beamforming Design
نویسندگان
چکیده
منابع مشابه
Genetic Algorithm Assisted Channel Estimation for Multi-user Communication Systems
A novel multiuser code division multiple access (CDMA) channel estimator based on genetic algorithm is considered which estimates the fading channel impulse response coefficients of all the users. Furthermore, the optimum multiuser detector, based on the maximum likelihood (ML) rule, is developed in order to identify the transmitted data sequence. As is demonstrated in simulation results, the p...
متن کاملAdaptive Sparse Channel Estimation for Time-Variant MISO Communication Systems
tec (M lea cha des exp ada LM two sig To a n (AS AS alg cha me sim est tha K nor (AS (M tec ma wa mu MI im effi rec to fre cha eac em MI Tim Abstract—Cha chnical issues MSIO) commun ast mean squ annel estimati scribed by sp ploited and th aptive sparse c MS algorithms o main drawb gnal and 2) uns o overcome the novel ASCE m SCE-NLMS). SCE method gorithm (ASCE annel sparsity ethods is conf mulat...
متن کاملCombined Beamforming and Channel Estimation in WCDMA Communication Systems
We address the problem of joint beamforming and multipath channel parameters estimation in Wideband Code Division Multiple Access (WCDMA) communication systems that employ Multiple-Access Interference (MAI) suppression techniques in the uplink (from mobile to base station). Most of the existing schemes rely on time multiplex a training sequence with the user data. In WCDMA, the channel paramete...
متن کاملBeamforming MISO-OFDM PAPR Reduction: A Space-User Perspective
A novel space-user approach to multiple-input-single-output (MISO) OFDM peak-to-average-power ratio (PAPR) reduction is examined. We propose two techniques that significantly reduce PAPR for MISO-OFDM at various userloads. The first exploits the degrees of freedom in the channel’s null-space (transmit weight optimization), while the second provides a more robust and higher reduction by further ...
متن کاملStable Matching with Externalities for Beamforming and User Assignment in Multi-cell MISO Systems
We consider the problem of distributed joint user association and beamforming in multi-cell multiple-input singleoutput systems. Assuming perfect local channel state information, each base station applies a distributed beamforming scheme called WSLNR-MAX [1] which depends on the user association in the network. We determine the user association by a proposed stable matching with externalities a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Open Journal of the Communications Society
سال: 2020
ISSN: 2644-125X
DOI: 10.1109/ojcoms.2020.2992791