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A variable-rate Viterbi decoder in 130-nm CMOS: design, measurements, and cost of flexibility

This paper discusses design and measurements of a flexible Viterbi decoder fabricated in 130-nm digital CMOS. Flexibility was incorporated by providing various code rates and modulation schemes to adjust to varying channel conditions. Based on previous trade-off studies, flexible building blocks were carefully designed to cause as little area penalty as possible. The chip runs down to a minimal co

Situated research and design for everyday life

This paper presents examples of different aspects of design in a disability context with the aim of revealing some of its fundamentals. It particularly emphasizes situated aspects of research: the need for being there, with the users in their daily lives – where the action is.

Low-Complexity MMSE Combining for Linear Impulse Radio UWB Receivers

Due to the fine delay resolution of typical ultra wideband (UWB) systems, Rake receivers need to combine samples from a large number of multipath components (MPCs) in order to collect sufficient signal energy for reliable decisions. In addition, these samples need to be combined optimally in order to minimize bit error probability. The optimal linear minimum mean square error (MMSE) combining sche

Pacemaking Jönköping

"We know and can do much more than we thought we could!" Perhaps this is what is most clearly revealed by the participants in Pacemaking Jönköping. The process, final report and the project's continuation comprise living proof that people in Sweden in 2