Accurate and efficient path delay estimation in OMP based sparse channel estimation for OFDM with equispaced pilots

L Wan, X Qiang, L Ma, Q Song… - IEEE Wireless …, 2018 - ieeexplore.ieee.org
The orthogonal matching pursuit (OMP) algorithm has been widely adopted in sparse
channel estimation, both in radio and underwater acoustic communications. Traditionally …

Joint channel estimation and MUD for scalable grant-free random access

AT Abebe, CG Kang - IEEE Communications Letters, 2019 - ieeexplore.ieee.org
A scalable grant-free access, which simultaneously reduces access collision rate and
signaling overhead, can be enabled by allowing contending users to randomly select a …

Performance analysis of OMP-based channel estimations in mobile OFDM systems

G Tan, B Wu, T Herfet - IEEE Transactions on Wireless …, 2018 - ieeexplore.ieee.org
To analyze the performance of orthogonal matching pursuit (OMP)-based compressed
channel estimation (CCE) with deterministic pilot patterns, we propose a mathematical …

Deterministic pilot pattern placement optimization for OFDM sparse channel estimation

Y Nie - IEEE Access, 2020 - ieeexplore.ieee.org
Compressed sensing (CS) technologies have been widely adopted to pilot-assisted
orthogonal frequency division multiplexing (OFDM) sparse channel estimation. However …

Sparse doubly-selective channels: Estimating path parameters unambiguously

K Chelli, P Sirsi, T Herfet - 2017 European Conference on …, 2017 - ieeexplore.ieee.org
Doubly selective channels or time-varying multipath channels occur when communication
systems are expected to work in a highly mobile environment. The estimation and the …

Cognitive framework for the estimation of doubly selective channels

K Chelli, P Sirsi, T Herfet - 2017 IEEE 86th vehicular …, 2017 - ieeexplore.ieee.org
Vehicular Communication Systems also known as Vehicle-to-Vehicle communication
systems (V2V) specify the use of Orthogonal Frequency-Division Multiplexing (OFDM) in the …

[PDF][PDF] 基于BIC 停止准则的改进A* OMP 信道估计算法

赵锦航, 刘健均, 周思源, 谭国平 - 计算机应用与软件, 2019 - shcas.net
摘要在高速移动场景下, 由于多普勒频移的影响, OFDm 系统会产生严重的载波间干扰,
从而影响无线通信链路的质量. 为弥补该缺陷以保障通信链路的质量需求, 需要对高速移动通信 …

Complexity reduction for consumer device compressed sensing channel estimation

K Chelli, P Sirsi, T Herfet - 2017 IEEE 7th International …, 2017 - ieeexplore.ieee.org
High mobility has become a mandatory consideration in the design and development of
wireless communication systems today. It results in a doubly selective or a time-varying …

Estimating doubly-selective channels in DVB-T2

K Chelli, T Herfet - 2018 IEEE international symposium on …, 2018 - ieeexplore.ieee.org
The ability to receive broadcast content in highly mobile scenarios plays an important role in
determining the success of broadcast systems in general. The second generation of …

基于卡尔曼滤波的快时变稀疏信道估计新技术

袁伟娜, 王嘉璇 - 西南交通大学学报, 2018 - xnjdxb.swjtu.edu.cn
针对高铁以及山区环境下正交频分复用(orthogonal frequency division multiplexing, OFDM)
通信系统的信道估计问题, 提出一种基于卡尔曼滤波的快时变稀疏信道估计方法 …