Community Research and Development Information Service - CORDIS

Multi-standard friendly and convergence enabling MIMO techniques

FLOWS has described the concept of multi-standard friendly MIMO techniques, defined as MIMO techniques which can be applied to multiple standards simultaneously while requiring minimal changes to the non-MIMO versions of the standards. The importance of this concept has been outlined in FLOWS report D14. Four MIMO techniques have been identified as relatively multi-standard friendly: MIMO-JT (Joint Transmission); space-time block codes (STBC), spatial multiplexing, and linear beamforming.

FLOWS have further identified the related concept of convergence-enabling MIMO techniques: MIMO techniques, which can simplify the implementation of multi-standard systems while allowing backwards-compatibility with legacy terminals. Systems based on the linear transformation concept on which MIMO-JT is based fall into this category, in that this framework can be adapted to any standard by the use of an appropriate linear transformation, and indeed terminals and base station equipment can adapt to the available equipment at the further end of the link. Moreover the use of MIMO may make the system easier to implement, because more degrees of freedom are available. The multi-standard spectral domain signal-processing receiver proposed by FLOWS is also suitable for the implementation of such a framework. A more detailed description is provided in FLOWS report D21.

Reported by

University of York
Heslington -
YO1 5DD York
United Kingdom
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