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Multiple-input multiple-output ultra-wide band channel modelling method based on ray tracing

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3 Author(s)
Asif, H.M. ; Sch. of Comput. & Commun. System, Lancaster Univ., Lancaster, UK ; Honary, B. ; Ahmed, H.

In this work, the authors have developed a deterministic Ultra Wide Band (UWB) channel model for indoor environment using both ray-tracing technique and the art of computer game technology in 3D Game Studio (game development tool). In the developed model, the characteristics of indoor environment such as texture, transparency etc. can be taken into consideration while indoor parameters such as room size, objects position etc. can be interactively changed. Each time, indoor environment is changed, the program is compiled and hence, the underlying ray-tracing captures the updated indoor environment. It is the key novelty of the authors' developed model and it has been so incorporated to make the authors' model independent of any fixed (pre-defined) indoor environment. The developed model is compared against the standard statistical UWB channel model based on certain parameters such as delay spread etc. to address its validity and accuracy. The model is then enhanced to use multiple antennas on both sides of the system and capture the channel response accordingly. Finally, the developed model has been tested over a range of frequencies to see frequency effect on the channel impulse response. The simulation results have been presented and discussed in the simulation section.

Published in:

Communications, IET  (Volume:6 ,  Issue: 10 )