1 research outputs found
Multi-Branch MMSE Decision Feedback Detection Algorithms with Error Propagation Mitigation for Multi-Antenna Systems
In this work we propose novel decision feedback (DF) detection algorithms
with error propagation mitigation capabilities for multi-input multi-output
(MIMO) spatial multiplexing systems based on multiple processing branches. The
novel strategies for detection exploit different patterns, orderings and
constraints for the design of the feedforward and feedback filters. We present
constrained minimum mean-squared error (MMSE) filters designed with constraints
on the shape and magnitude of the feedback filters for the multi-branch MIMO
receivers and show that the proposed MMSE design does not require a significant
additional complexity over the single-branch MMSE design. The proposed
multi-branch MMSE DF detectors are compared with several existing detectors and
are shown to achieve a performance close to the optimal maximum likelihood
detector while requiring significantly lower complexity.Comment: 4 page