Quantization Bounds on Grassmann Manifolds of Arbitrary Dimensions and MIMO Communications with Feedback

Details Quantization Bounds on Grassmann Manifolds of Arbitrary Dimensions and MIMO Communications with Feedback Quantization Bounds on Grassmann Manifolds of Arbitrary Dimensions and MIMO Communications with Feedback

2007-05-16

arxiv.org/abs/0705.2272v1

Computer Science

Information Theory

In IEEE Global Telecommunications Conference (GLOBECOM), 2005

Scientific paper

This paper considers the quantization problem on the Grassmann manifold with dimension n and p. The unique contribution is the derivation of a closed-form formula for the volume of a metric ball in the Grassmann manifold when the radius is sufficiently small. This volume formula holds for Grassmann manifolds with arbitrary dimension n and p, while previous results are only valid for either p=1 or a fixed p with asymptotically large n. Based on the volume formula, the Gilbert-Varshamov and Hamming bounds for sphere packings are obtained. Assuming a uniformly distributed source and a distortion metric based on the squared chordal distance, tight lower and upper bounds are established for the distortion rate tradeoff. Simulation results match the derived results. As an application of the derived quantization bounds, the information rate of a Multiple-Input Multiple-Output (MIMO) system with finite-rate channel-state feedback is accurately quantified for arbitrary finite number of antennas, while previous results are only valid for either Multiple-Input Single-Output (MISO) systems or those with asymptotically large number of transmit antennas but fixed number of receive antennas.

Affiliated with

Also associated with

No associations

Rating

Quantization Bounds on Grassmann Manifolds of Arbitrary Dimensions and MIMO Communications with Feedback does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quantization Bounds on Grassmann Manifolds of Arbitrary Dimensions and MIMO Communications with Feedback, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantization Bounds on Grassmann Manifolds of Arbitrary Dimensions and MIMO Communications with Feedback will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-669909