Application of time reversal with MMSE equalizer to UWB communications

Thomas Strohmer, Majid Emami, Jan Hansen, Arogyaswami Paulraj, George Papanicolaou

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


We propose to apply a technique called time-reversal to UWB communications. In time-reversal a signal is precoded such that it focuses both in time and in space at a particular receiver. Spatial focusing reduces interference to other co-existing systems. Due to temporal focusing, the received power is concentrated within a few taps and the task of equalizer design becomes much simpler than without focusing. Furthermore, temporal focusing allows a large increase in transmission rate compared to schemes that let the impulse response ring out before the next symbol is sent. Our paper introduces time-reversal, investigates the benefit of temporal focusing, and examines the performance of an MMSE-TR equalizer in an UWB channel.
Original languageEnglish
Title of host publication2004 IEEE Global Telecommunications Conference (GLOBECOM)
Publication statusPublished - 3 Dec 2004
Externally publishedYes
Event2004 IEEE Global Telecommunications Conference: Globecom 2004 - Dallas, TX, United States
Duration: 29 Nov 20043 Dec 2004


Conference2004 IEEE Global Telecommunications Conference
Abbreviated titleGlobecom 2004
Country/TerritoryUnited States
CityDallas, TX


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