DocumentCode :
579497
Title :
Time-scale domain characterization of ultrawideband 2× 2 MIMO channel and range extension for Infostation environment
Author :
Zahedi, Yasser K. ; Okonkwo, Uche A K Chude ; Ngah, Razali ; Rahman, Tharek Abd ; Mamat, Nor Aswani
Author_Institution :
Wireless Commun. Center, Univ. Teknol. Malaysia, Skudai, Malaysia
fYear :
2012
fDate :
23-26 Sept. 2012
Firstpage :
151
Lastpage :
155
Abstract :
In this paper, we present the time-scale domain channel characterization of the multiple-input-multiple-output ultra-wideband (MIMO-UWB) channel typical of the Infostation channel. Specifically, we consider 2 × 2 MIMO-UWB taking into account the mobility of the transceiver (time-variation). Due to the uniqueness of the time-varying UWB propagation mechanism, we consider the channel response as a time-scale domain tensor instead of a matrix, and define a time-scale domain MIMO-UWB channel representation. We use the tensor model to represent a typical Infostation channel and obtain the diversity gain, and invariably the range extension in terms of signal-to-noise ratio (SNR) for both the single-input-single-output (SISO) and MIMO cases at different data rates. Results show that at an acceptable SNR of say 12 dB and data rate of 55 Mbps, the coverage range can be extended from 15 m to well over 25 m using 2 × 2 MIMO. For 110 Mbps, the range can be extended from 10 m to 25 m. And in the case of 480 Mbps, the impact of using 2 × 2 MIMO-UWB in the range extension is not quite appreciable.
Keywords :
MIMO communication; radio transceivers; radiowave propagation; tensors; time-domain analysis; ultra wideband communication; Infostation channel; Infostation environment; SISO channel; SNR; bit rate 110 Mbit/s; bit rate 480 Mbit/s; bit rate 55 Mbit/s; channel response; diversity gain; multiple-input-multiple-output ultra-wideband channel; range extension; signal-to-noise ratio; single-input-single-output channel; time-scale domain MIMO-UWB channel representation; time-scale domain channel characterization; time-scale domain tensor model; time-varying UWB propagation mechanism; transceiver; ultrawideband 2×2 MIMO channel; Diversity methods; MIMO; Receiving antennas; Signal to noise ratio; Tensile stress; Wireless communication; MIMO-UWB; range extension; tensor; time-scale domain;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Technology and Applications (ISWTA), 2012 IEEE Symposium on
Conference_Location :
Bandung
ISSN :
2324-7843
Print_ISBN :
978-1-4673-2209-6
Type :
conf
DOI :
10.1109/ISWTA.2012.6373831
Filename :
6373831
Link To Document :
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