| Session: | 1.1.1 - Signal Processing in MIMO Systems |
| Session Time: | Monday, July 10, 09:40 - 11:00 |
| Paper Time: | Monday, July 10, 09:40 - 10:00 |
| Title: |
Approximate Lattice Decoding: Primal Versus Dual Basis Reduction |
| Authors: |
Cong Ling; Kings College London | | |
| Abstract: |
Lattice decoding enables significant complexity reduction in multi-input multi-output (MIMO) communications. Unlike most work on the lattice-reduction-aided decoding technique, this paper is aimed at a comparative study of primal versus dual basis reduction for approximate lattice decoding. We derive the respective proximity factors for the two methods, which measure the performance gap to maximum-likelihood (ML) decoding. It is found that in many cases reducing the dual can result in smaller proximity factors than reducing the primal basis. |
