TY - JOUR
T1 - Polarization diversity measurements and analysis for antenna configurations at 1800 MHz
AU - Narayanan, Ram M.
AU - Atanassov, Kalin
AU - Stoiljkovic, Vladimir
AU - Kadambi, Govind R.
N1 - Funding Information:
Manuscript received May 2003; revised September 2003. This work was supported in part by the Nebraska Research Initiative on Mobile Communications Research and in part by Centurion Wireless Technologies, Inc.
PY - 2004
Y1 - 2004
N2 - In wireless communication systems, multipath interference has a significant impact on system design and performance. Fast fading variations are caused by the coherent summation of multiple echoes from many reflection points reaching the receive antenna. Antenna diversity is one technique that can be used to overcome multipath fading. A test system used to measure the diversity performance of an antenna pair was used to experimentally determine the complex correlation coefficient between the two antenna branches. A local mean estimation algorithm based on the channel mean square error equalization was implemented. Thus, the two parameters that determine the expected diversity gain, i.e., the complex correlation coefficient and the mean level signal difference, were estimated. The test system was used to evaluate the polarization diversity performance of different antenna pairs in Rayleigh and Rician environments, both in the absence and in the presence of a human head phantom.
AB - In wireless communication systems, multipath interference has a significant impact on system design and performance. Fast fading variations are caused by the coherent summation of multiple echoes from many reflection points reaching the receive antenna. Antenna diversity is one technique that can be used to overcome multipath fading. A test system used to measure the diversity performance of an antenna pair was used to experimentally determine the complex correlation coefficient between the two antenna branches. A local mean estimation algorithm based on the channel mean square error equalization was implemented. Thus, the two parameters that determine the expected diversity gain, i.e., the complex correlation coefficient and the mean level signal difference, were estimated. The test system was used to evaluate the polarization diversity performance of different antenna pairs in Rayleigh and Rician environments, both in the absence and in the presence of a human head phantom.
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U2 - 10.1109/TAP.2004.831290
DO - 10.1109/TAP.2004.831290
M3 - Article
AN - SCOPUS:4043127585
SN - 0018-926X
VL - 52
SP - 1795
EP - 1810
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 7
ER -