JOURNAL OF NETWORKS (JNW)
ISSN : 1796-2056
Volume : 4    Issue : 1    Date : February 2009

Spectral Efficiency for MIMO UWB Channel in Rectangular Metal Cavity
Zhen Hu, Robert Qiu, and Dalwinder Singh
Page(s): 42-52
Full Text:
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Abstract
Wireless communication in confined metal environment such as rectangular metal cavity has
attracted more and more attentions recently. The channel characteristics in such an environment
are different from those in the traditional wireless communication environments: extremely rich
multipath components make communication very challenging. Multiple input multiple output (MIMO)
plus ultra-wideband (UWB) technique is promising for wireless communication in confined metal
environment, since it can fully employ radio resources not only in space domain but also in
frequency domain. This paper considers the fundamental limit about MIMO UWB channel in
rectangular metal cavity when different spectrum-shaping schemes such as water filling, constant
power water filling, time reversal, channel inverse, constant power spectrum density and minimum
mean square error are employed at the transmitter. Meanwhile, the measured channel transfer
function is used in this paper for analysis.

Index Terms
Spectral efficiency, MIMO, UWB, rectangular metal cavity, water filling, constant power water filling,
time reversal, channel inverse, constant power spectrum density, minimum mean square error,
power allocation