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The fundamental problem of our interest here is soft MIMO detection. We propose a method that yields excellent performance, at low and at fixed (deterministic) complexity. Our method provides a well-defined tradeoff between computational complexity and performance. Apart from an initial step consisting of selecting columns, the algorithm involves no searching nor algorithmic branching; hence the algorithm has a completely predictable run-time, and it is readily and massively parallelizable.
Date of Conference: 25-30 March 2012