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2007
IEEE

Diversity Multiplexing Tradeoff in Multiple Antenna Multiple Access Channels with Partial CSIT

9 years 16 days ago
Diversity Multiplexing Tradeoff in Multiple Antenna Multiple Access Channels with Partial CSIT
Abstract— We derive a lower bound on the diversitymultiplexing tradeoff for multiple antenna multiple access channels using temporal power control (PC). We quantify the substantial improvements in diversity gains with finite rate feedback over schemes that use no feedback, even when users have asymmetric diversity and rate requirements. For small multiplexing gains, all users in the MAC achieve their single user performance as if each receives B distinct bits of feedback. We also show that for a SISO MAC with finite rate feedback, the diversity orders with PC and with opportunistic user selection are the same at all multiplexing gains.
Kaushik Josiam, Dinesh Rajan, Mandyam D. Srinath
Added 02 Jun 2010
Updated 02 Jun 2010
Type Conference
Year 2007
Where GLOBECOM
Authors Kaushik Josiam, Dinesh Rajan, Mandyam D. Srinath
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