On user effect compensation of MIMO terminals with adaptive impedance matching

Ivaylo Vasilev, Vanja Plicanic, Buon Kiong Lau

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

163 Nedladdningar (Pure)

Sammanfattning

Proximity of user has been established as a major cause of performance degradation in multiple-input multiple-output (MIMO) terminals. Here, we investigate the potential of adaptive impedance matching (AIM) to improve the performance of two MIMO terminals in a free space (FS) and a two-hand (TH) user scenario, assuming uniform 3D angular power spectrum for the incoming signal. The results show that lossless uncoupled AIM circuits can enhance the MIMO capacity of the terminals by up to 43% relative to standard 50 ohm terminations. In particular, the largest capacity gain is obtained in the terminal with good matching but narrower antenna bandwidth and worse isolation performance, for the TH scenario. On the other hand, the terminal with poorer matching but higher isolation and significantly larger bandwidth has lower average capacity in FS. However, it is more robust to user proximity, and hence it achieves only 8% capacity gain with AIM in the TH scenario. Therefore, antenna design parameters can significantly influence potential benefits of AIM in practice.
Originalspråkengelska
Titel på värdpublikationIEEE International Symposium on Antennas and Propagation, 2013
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
Sidor174-175
Antal sidor2
DOI
StatusPublished - 2013
EvenemangIEEE International Symposium on Antennas and Propagation, 2013 - Lake Buena Vista, FL, USA
Varaktighet: 2013 juli 72013 juli 13

Publikationsserier

Namn
ISSN (tryckt)1522-3965
ISSN (elektroniskt)1947-1491

Konferens

KonferensIEEE International Symposium on Antennas and Propagation, 2013
Land/TerritoriumUSA
OrtLake Buena Vista, FL
Period2013/07/072013/07/13

Ämnesklassifikation (UKÄ)

  • Elektroteknik och elektronik

Fingeravtryck

Utforska forskningsämnen för ”On user effect compensation of MIMO terminals with adaptive impedance matching”. Tillsammans bildar de ett unikt fingeravtryck.

Citera det här