The Channel Compressive Sensing Estimation for Power Line Based on OMP Algorithm

Abstract

Power line communication (PLC) can collect information by power line which increases the coverage and connectivity of the smart grid. In this paper, we analyze the transmission characteristics of the power line channel and model it with mathematics channel. The multipath effect of the power line channel is studied with a novel technology named compressive sensing herein. We also proposed a new method to the power line channel estimation based on compressive sensing. We can collect and extract the effective parameters of the power line channel to storage, which only take very little storage space. The simulation results show that the proposed approach can reduce the amount of processing data in the digital signal processing module and decrease the requirement for the hardware.

Performance Analysis of Channel Estimation in 5G millimeter-Wave-MIMO Heterogeneous Systems

“…The convergence and feasibilityissues will be explored in the improved wideband mm-Wave-MIMO CE CS-based approach involving the large grid sizes. The efficiency in compression sensing may be improved as a future research by a suitable algorithm [61].The decentralized MMSE estimation of a general correlated random vector in a mmWave -Ma-MIMO framework as a future research may be considered [63].The mmWave -based wideband collaborative spectrum sensing using a Decision Fusion Centre equipped with multiple receive antennasin case of Ma-MIMO and a 'virtual' Ma-MIMO based radio networks may perform in future for better sensing performance, in mitigating severe shadowing effects considerably, and in presence of correlated measurements [64].…”

“…The efficient algorithms that adaptively estimate the channel with random or TV array manifolds was not developed for mm-Wave systems. The maximum Doppler frequency = 200 was considered in paper [31].The hardware requirements were reduced by the presented method in PLC CE model [61]. In paper [16], two OMP methods namely Single Peak Cancelation (SPC) and Joint Peak Cancelation Methods (JPC) OMP methods as well as Accelerated Gradient Descent with Adaptive Restart (AGDAR) were used w.r.t.…”

Efficient Low-Complexity Optimized Channel Estimating Methods for OFDM-Based Low-Voltage Broadband Power Line Communication Systems

“…where p(t) is the time-domain impulse noise, u(t) denotes the unit step function, Nd represents the number of damped sinusoids in an impulse, A is the impulse amplitude, Td is the impulse duration, 1 α is the damping factor and fi denotes the pseudo frequency of the sinusoids All these noises are added together in (10) to get the overall BB-PLC channel noise which perturbs the time-domain data signals.…”

“…Compressed Sensing-based Orthogonal Matching Pursuit (CS-OMP) [10], Zadeh-based Minimum Mean Square Error (Z-MMSE) [11], adaptive trimmed/weighted LS [13], particle filtering [12], etc., and 2) blind, e.g., Least-Mean-Square (LMS) [13], adaptive Maximum a-Posteriori (MAP) [14], etc.…”

Ground improvement using granular pile anchor system: resistance to heave and uplift pressure

“…Many studies [7,9,[15][16][17][23][24][25][26] have been conducted to investigate the displacement resulted from the application of external force to pull the GPA. The numerical investigation is an essentially part of the research so as to have an accurate interpretation of the results [27][28][29]. Normally, the upward displacement is recorded with respective incremental pull-out forces.…”