This document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available

Associate Member Ieee

Chia-chin Chong

Chor-min Tan

David I. Laurenson

Senior Member

Stephen Mclaughlin

Student Member

English

CiteSeerX

A novel wideband dynamic directional indoor channel model based on a Markov process

A novel stochastic wideband dynamic spatio-temporal indoor channel model which incorporates both the spatial and temporal domain properties as well as the dynamic evolution of paths when the mobile moves is proposed based on the concept of a Markov process. The derived model is based on dynamic measurement data collected at a carrier frequency of 5.2 GHz in typical indoor environments. Multipath components are estimated using the super-resolution frequency domain space-alternating generalized expectation maximization algorithm prior to identification of path "birth" and "death" using a new data analysis method. Analysis shows that multiple births and deaths are possible at any instant of time. Furthermore, correlation exists between the number of births and deaths. Thus, an M-step 4-state Markov channel model (MCM) is proposed in order to account for these two effects. The spatio-temporal variations of paths within their lifespans are taken into consideration by the spatio-temporal vector which was found to be well modeled by a Gaussian probability density function while the power variation can be modeled by a simple low-pass filter. In addition, the methodology used to extract the MCM parameters from the measurement data is also presented. Due to the distinction in the birth-death statistics, the model is generalized through segmentation of the measurement runs and can be completely parameterized by several sets of Markov parameters associated with the type of environment and scenario under consideration. The implementation of the model is also detailed and, finally, the model is evaluated by comparing key statistics of the simulation results with the measurement results

Chong, CC

Tan, CM

Laurenson, DI

MacLaughlin, S

Beach, MA

Nix, AR

Explore Bristol Research

(M’84–SM’04) was born in Clydebank,

(S’99) received the M.Eng. degree in electrical and electronic engineering from the University of Bristol,

A dynamic model of the indoor channel,”

A stochastic channel model based on wave-propagation modeling,”

An interior, trust region approach for nonlinear minimization subject to bounds,”

andA.R.Nix,“Anewstatistical widebandspatio-temporalchannelmodel for 5-GHz band WLAN systems,”

Beach (A’89) received the Ph.D. degree for researchaddressingtheapplicationofsmartantennas to GPS from the University of Bristol,

Capacity improvement with base-station antenna arrays in cellular

Chia-Chin Chong (S’00–M’03) received the B.Eng. degree with ﬁrst class honors from the University of Manchester,

Chong received the Joseph Higham Prize and the GEC-Marconi Prize from the University of Manchester in 2000 for academic excellence and outstanding performance.

Dynamic directional channel model for indoor wireless communications,”

Identiﬁcation of time-variant directional mobile radio channels,”

Indoor and Mobile Radio Communications (PIMRC

Joint detection-estimation of directional channel parameters using the 2-D frequency domain SAGE algorithm with serial interference cancellation,” in

Laurenson (M’90) received the B.Eng. degree in computer science and electronics and the Ph.D. degree in electrical engineering, both from the University of Edinburgh,

Model scenarios for directionselective adaptive antennas in cellular mobile communication systems— scanning the literature,” Kluwer Wireless Pers.

Nix (A’97) received the B.Eng. and Ph.D. degrees from the University of Bristol,

Overview of spatial channel models for antenna array communication systems,”

R.Lomb,“Least-squares frequency analysis of unequally spaced data,” Astrophys.

Statistical characterization of the 5.2 GHz wideband directional indoor propagation channels with clustering and correlation properties,” in

Studies in astronomical time series analysis II—Statistical aspects of spectral analysis of unevenly spaced data,”

Tan was awarded the DTI Radio Communication Agency Award and the ﬁrst prize

to 1984, he was a Development Engineer with Barr and Stroud Ltd., Glasgow, involved in the design and simulation of integrated thermal imaging and ﬁre control systems. From

Wideband propagation model for the analysis of the effect of the multipath fading of the near-far problem in CDMA mobile radio systems,”

Wireless Personal Multimedia Communications (WPMC

Chong, Chia-Chin

Tan, Chor-Min

Laurenson, David

McLaughlin, Stephen

Beach, Mark A

Nix, Andrew R.

Heriot Watt Pure

http://research-information.bristol.ac.uk/files/2992454/Chong_IEEE_TWC_July2005.pdf

A novel wideband dynamic directional indoor channel model based on a Markov process

Abstract

Similar works

Full text

Available Versions

CiteSeerX

Explore Bristol Research

Heriot Watt Pure

Heriot Watt Pure