IEEE Wireless Communications Letters, accepted for publication.

Spectral Efficiency Bounds for Interference-Limited SVD-MIMO Cellular Communication Systems

Jinseok Choi, Jeonghun Park, and Brian L. Evans

Department of Electrical and Computer Engineering, Wireless Networking and Communications Group, The University of Texas at Austin, Austin, TX 78712 USA
jinseokchoi89@gmail.com - jeonghun.park87@gmail.com - bevans@ece.utexas.edu

Paper Draft (on Archive)

Multiantenna Communications Project

Abstract

The ergodic spectral efficiency (SE) in interference-limited multiple-input multiple-output (MIMO) downlink cellular systems is characterized based on stochastic geometry. A single user is served by using singular value decomposition precoding and combining. By approximating the expectations of the channel eigenvalues, we derive upper and lower bounds on the ergodic SE. The obtained upper bound is the best possible system-level performance of any MIMO strategy in non-cooperative cellular networks. We validate our analytical results through simulation. We also conjecture that there exists the optimal number of streams being proportional to the pathloss exponent.


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Last Updated 11/14/16.