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Polarized-mimo capacity analysis in street-canyon using 3D ray-tracing model

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2 Author(s)
Shoshan, K. ; Electr. Eng. Sch., Tel-Aviv Univ., Tel Aviv, Israel ; Amrani, O.

Polarization characteristic of wireless signals did not attract much attention yet as a dimension that can be exploited for achieving diversity in the full 3D reality. Although spatial-MIMO (S-MIMO) systems have been studied extensively during the past few years, the polarized-MIMO (P-MIMO) attribute of antennas was not addressed similarly. The current analysis aims at studying the P-MIMO potential for a street-canyon scenario and was performed using a P-MIMO 3D channel model based on the ray-tracing technique. It is shown that relative to degenerate polarization-dimension techniques (such as SISO and SIMO) there is a significant capacity improvement when using several polarizations concurrently. Some practical observations are given with respect to the base station antenna orientation and floor-to-walls reflection importance. These results highlight the importance of polarization in MIMO channel models and the potential of P-MIMO implementation in future broadband wireless systems.

Published in:

Electrical and Electronics Engineers in Israel, 2008. IEEEI 2008. IEEE 25th Convention of

Date of Conference:

3-5 Dec. 2008