MIMO Channel Capacity for Handsets in Data Mode Operation

Jesper Ødum Nielsen, Boyan Yanakiev, Ivan Bonev Bonev, Morten Christensen, Gert Frølund Pedersen

Publikation: Working paper/PreprintWorking paperForskning

Abstrakt

The current paper concerns realistic evaluation of
the capacity of the MIMO channel between a BS and handheld
device, such as a PDA or smart phone, held in front of the
user’s body (data mode). The work is based on measurements
of the MIMO channel between two widely separated BSs in a
micro-cellular setup, and seven handsets located in an indoor
environment. The measurements are done simultaneously in both
the 776 MHz and 2300 MHz bands, and from the two BSs. The
handsets are realistic types and were measured both in free space
and with twelve different users, using both one and two hands.
The random capacity of the channels are evaluated in terms
of percentiles. For an SNR of 10 dB, median capacities in free
space of about 4.4–4.7 bit/s/Hz for the low band and about 3.3–
3.8 bit/s/Hz for the high band were found. The mean decrease in
capacity due to the user was found to be up to about 2.2 bit/s/Hz,
depending on the band and handset. More results are presented
in the paper.
OriginalsprogEngelsk
Antal sider11
StatusUdgivet - nov. 2010

Bibliografisk note

COST2100 temporary document, TD(10)12028

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