MIMO Channel Modelling Methods: An Overview
نویسندگان
چکیده
Multiple Input Multiple Output (MIMO) systems have been an important area for future wireless systems, as it can provide high capacity, good diversity and less interference. This technique is very attractive for wireless communication to increase data rates and system performance. A radio propagation channel is a one that gives the characteristics of MIMO systems. Different approaches have been modelled for the MIMO channel. So accurate modelling of MIMO channel is required for MIMO system design, simulation and deployment. As a result MIMO system becomes favourite choice for many researchers. This paper gives a brief description of various channel models employed for MIMO system.
منابع مشابه
Performance Improvement of Mimo Ofdm Systems through Channel Estimation
A brief overview of MIMO-OFDM system design has been discussed and its key techniques are introduced. It also focuses on OFDM-based air interface, spatial channel modelling, transceiver design, channel estimation and minimizing the BER ratio by modifying the Maximum Likelihood function through channel estimation.
متن کاملSemi-Blind Channel Estimation based on subspace modeling for Multi-user Massive MIMO system
Channel estimation is an essential task to fully exploit the advantages of the massive MIMO systems. In this paper, we propose a semi-blind downlink channel estimation method for massive MIMO system. We suggest a new modeling for the channel matrix subspace. Based on the low-rankness property, we have prposed an algorithm to estimate the channel matrix subspace. In the next step, using o...
متن کاملMIMO Channel Modelling and Performance Evaluations
The demand on wireless networks with high throughput has grown heavily because of the increasing usage of data services. One of the key technologies to meet this requirement is the multiple-input multiple-output (MIMO) communication system, which improves the spectrum efficiency without too much investment on the infrastructure and new frequency spectrum. In this theis, a new MIMO channel model...
متن کاملMeasurement-Based Time-Variant MIMO Channel Modelling Using Clusters
We present the novel Random-Cluster Model (RCM), a time-variant frequency-selective MIMO channel model. The most significant feature of the RCM is that it is parametrised directly from channel measurements by an automatic procedure. Thus, the RCM is specific to the environment, although it retains all advantages of a stochastic model. In this way it closes the gap between channel measurements a...
متن کامل9 Radio Channel Measurement and Modelling Techniques
This chapter is dedicated to radio channel measurement and modelling techniques for beyond 4G networks, in particular: • new measurement techniques not only targeting radio channels, but also material properties in new frequency bands (Section 9.1), • improved physical models, cowering full-wave as well as ray-based methods, with a specific sub-section dealing with diffuse scattering (DS) and c...
متن کامل