A stochastic multipath channel model including path directions for indoor environments

Zwick, Thomas; Fischer, Carl; Wiesbeck, W.

doi:10.1109/jsac.2002.801218

Cited by 164 publications

(112 citation statements)

References 25 publications

Supporting

Mentioning

106

Contrasting

Unclassified

Order By: Relevance

“…The generation and recombination rates of clusters and percentage of moving clusters were adapted from [29] and [30]. However, certain parameters such as cluster distances to the transmitter or receiver were given based on reasonable assumptions, since we have not found any relevant measurement data so far.…”

Section: Numerical Results and Analysismentioning

confidence: 99%

“…This aims at modeling not only the phenomena of cluster appearance and disappearance on antenna arrays of massive MIMO, but also non-stationary behaviors of clusters on the time axis. The generation procedure is achieved by extending the concept of birth-death process on the time axis in previous literature [29], [30] to the array axis as well. The outcome of the first part determines the cluster set of each antenna.…”

Section: B Non-stationary Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

A Non-Stationary 3-D Wideband Twin-Cluster Model for 5G Massive MIMO Channels

Wang

Aggoune

et al. 2014

IEEE J. Select. Areas Commun.

204

106

View full text Add to dashboard Cite

Abstract-This paper proposes a novel theoretical non-stationary three dimensional (3-D) wideband twin-cluster channel model for massive multiple-input multiple-output (MIMO) communication systems with carrier frequencies on the order of gigahertz (GHz). As the dimension of antenna arrays cannot be ignored for massive MIMO, near field effects instead of far field effects are considered in the proposed model. These include the spherical wavefront assumption and a birth-death process to model non-stationary properties of clusters such as cluster appearance and disappearance on both the array and time axes. Their impacts on massive MIMO channels are investigated via statistical properties including correlation functions, condition numbers, and angular power spectra. Additionally, the impact of elevation angles on correlation functions is discussed. A corresponding simulation model for the theoretical model is also proposed. Finally, numerical analysis shows that the proposed channel models are able to serve as a design framework for massive MIMO channel modeling.Index Terms-Massive MIMO, 3-D twin-cluster channel model, spherical wavefront, non-stationarity, birth-death process.

show abstract

Section: Numerical Results and Analysismentioning

confidence: 99%

Section: B Non-stationary Propertiesmentioning

confidence: 99%

A Non-Stationary 3-D Wideband Twin-Cluster Model for 5G Massive MIMO Channels

Wang

Aggoune

et al. 2014

IEEE J. Select. Areas Commun.

204

106

View full text Add to dashboard Cite

show abstract

“…For the non-geometry based stochastic models, the random parameters are generated according to the probability distribution functions without regarding any propagation geometry information. The Wallace and Jensen channel models [53,54], which extended the Saleh-Valenzuela model [55], and Zwick model [56] are typical non-geometry based stochastic models.…”

Section: Physical Channel Modelsmentioning

confidence: 99%

Review of wideband MIMO channel measurement and modeling for IMT-Advanced systems

Zhang

2012

Chin. Sci. Bull.

View full text Add to dashboard Cite

In October 2005, the next generation mobile communication system was officially named as the International Mobile Telecommunications-Advanced (IMT-Advanced) by the ITU Radiocommunication Sector (ITU-R). Wideband multiple input and multiple output (MIMO) channel models in multiple propagation environments are fundamental for IMT-Advanced systems and such research has been initiated since 2003. The research challenges come from the fact that the wider bandwidth (20-100 MHz) and the advanced multiple antenna technology have been proposed for the IMT-Advanced system, thus leading to higher sampling rates and multiple spatial propagation channels. In this review, four aspects of wideband MIMO channel measurement and modeling are discussed: (1) radio channel measurement procedure and equipment; (2) large scale fading models; (3) small scale fading models; and (4) MIMO channel models. In particular, the large scale fading affected by the carrier frequency is investigated for urban macrocells and it shows that the higher carrier frequency results in greater loss for non-line-of-sight (NLoS) conditions in the cities of China, for which the frequency dependent factor is 32.1. Moreover, the dense and the obviously higher buildings also lead to a larger angle spread (AS) of both the angle of arrival and angle of departure in urban macrocell scenarios. The results indicate that there is the potential to explore the MIMO technique for an IMT-Advanced system with larger ASs, which would lead to the high system capacity. The progress on MIMO models is described and some methods for simplifying geometry-based stochastic channel models (GBSM) are proposed. Finally future research topics on channel measurement and modeling are identified.next generation communication systems, IMT-Advanced, channel, wideband, MIMO, measurement, modeling Citation:Zhang J H. Review of wideband MIMO channel measurement and modeling for IMT-Advanced systems.

show abstract

“…It is also important to estimate its service area in order to plan wireless systems that use MIMO systems. Therefore, measurement in a real environment [5] and computer propagation simulations [6] were performed to plan its service area. Although there is no doubt that evaluation through measurement in a real environment is the best, it is difficult to use the measurement approach because of cost and time.…”

Section: Introductionmentioning

confidence: 99%

Plane-Wave and Vector-Rotation Approximation Technique for Reducing Computational Complexity to Simulate MIMO Propagation Channel Using Ray-Tracing

Yamada

Kita

Sugiyama

et al. 2009

IEICE Trans. Commun.

View full text Add to dashboard Cite

SUMMARYThis paper proposes new techniques to simulate a MIMO propagation channel using the ray-tracing method for the purpose of decreasing the computational complexity. These techniques simulate a MIMO propagation channel by substituting the propagation path between a particular combination of transmitter and receiver antennas for all combinations of transmitter and receiver antennas. The estimation accuracy calculated using the proposed techniques is evaluated based on comparison to the results calculated using imaging algorithms. The results show that the proposed techniques simulate a MIMO propagation channel with low computational complexity, and a high level of estimation accuracy is achieved using the proposed Vector-Rotation Approximation technique compared to that for the imaging algorithm.

show abstract

A stochastic multipath channel model including path directions for indoor environments

Cited by 164 publications

References 25 publications

A Non-Stationary 3-D Wideband Twin-Cluster Model for 5G Massive MIMO Channels

A Non-Stationary 3-D Wideband Twin-Cluster Model for 5G Massive MIMO Channels

Review of wideband MIMO channel measurement and modeling for IMT-Advanced systems

Plane-Wave and Vector-Rotation Approximation Technique for Reducing Computational Complexity to Simulate MIMO Propagation Channel Using Ray-Tracing

Contact Info

Product

Resources

About