An Upper Bound for Limited Rate Feedback MIMO Capacity
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol.8, no.6, pp.2748-2754, 2009 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 8 Issue: 6
- Publication Date: 2009
- Doi Number: 10.1109/twc.2009.071356
- Journal Name: IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.2748-2754
- Middle East Technical University Affiliated: Yes
Abstract
We develop a technique to upper bound the point-to-point MIMO limited rate feedback (LRF) capacity under a wide class of vector quantization schemes. The upper bound turns out to be tight and can also be used to obtain an absolute upper bound by using a bounding distribution for Grassmannian beamforming. The bounding technique can be applied to other problems requiring the exact evaluation of the expected value of matrix determinant.