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MIMO stochastic model and capacity evaluation of on-body channels

MIMO stochastic model and capacity evaluation of on-body channels
MIMO stochastic model and capacity evaluation of on-body channels
The improvement in terms of channel capacity provided by using a MIMO antenna system in personal area networks is investigated. Two on-body channel models derived in the 2.45 GHz frequency band are also presented and applied to two on-body links. The first proposed model uses, for each spatial subchannel, the same average values for the Rician factor, received power, and shadowing deviation. The second model encompasses the polarization loss in the on-body channels by utilizing different values of these parameters per each spatial subchannel. Furthermore, the joint correlation matrix is used instead of the classical Kronecker product. It is shown that the second model results in a better agreement of the achievable capacity with the measured channel. Also, the equal power and waterfilling power allocation schemes are compared in such on-body channels and it is shown that, adopting waterfilling instead of the equal power provides a higher capacity in the low SNR range while yielding the same achievable capacity in high SNR.
capacity, mimo, model, on-body
2980-2986
Ghanem, Imdad
0760ccc5-1595-46dc-8836-4b68cd8b07e3
Hall, Peter
dcd45cc0-be3e-48f3-b121-346ce12aa25b
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Ghanem, Imdad
0760ccc5-1595-46dc-8836-4b68cd8b07e3
Hall, Peter
dcd45cc0-be3e-48f3-b121-346ce12aa25b
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Ghanem, Imdad, Hall, Peter and Hanzo, Lajos (2012) MIMO stochastic model and capacity evaluation of on-body channels. IEEE Transactions on Antennas and Propagation, 60 (6), 2980-2986. (doi:10.1109/TAP.2012.2194630).

Record type: Article

Abstract

The improvement in terms of channel capacity provided by using a MIMO antenna system in personal area networks is investigated. Two on-body channel models derived in the 2.45 GHz frequency band are also presented and applied to two on-body links. The first proposed model uses, for each spatial subchannel, the same average values for the Rician factor, received power, and shadowing deviation. The second model encompasses the polarization loss in the on-body channels by utilizing different values of these parameters per each spatial subchannel. Furthermore, the joint correlation matrix is used instead of the classical Kronecker product. It is shown that the second model results in a better agreement of the achievable capacity with the measured channel. Also, the equal power and waterfilling power allocation schemes are compared in such on-body channels and it is shown that, adopting waterfilling instead of the equal power provides a higher capacity in the low SNR range while yielding the same achievable capacity in high SNR.

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More information

e-pub ahead of print date: 2012
Published date: June 2012
Keywords: capacity, mimo, model, on-body
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 339187
URI: http://eprints.soton.ac.uk/id/eprint/339187
PURE UUID: bf927ad8-cff6-4ad1-8123-0ae3dbb446fd
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 24 May 2012 14:28
Last modified: 18 Mar 2024 02:35

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Contributors

Author: Imdad Ghanem
Author: Peter Hall
Author: Lajos Hanzo ORCID iD

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