Efficient VLSI Implementation of Reduced-State Sequence Estimation for Wireless Communications

Modern wireless communication systems require efficient channel equalizer implementations. This paper explores the design space of reduced-state sequence estimation (RSSE). We show how the concept of pre-computation can be applied to greatly reduce computational complexity, such that efficient RSSE architectures can be derived. As a proof of concept, an RSSE was implemented in dedicated hardware, that achieves a 1.6 times higher hardware efficiency when compared to prior art.