One-bit Time Reversal for WLAN Applications
Conference: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
09/11/2005 - 09/14/2005 at Berlin, Germany
Proceedings: PIMRC 2005
Pages: 5Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
Kyritsi, Persefoni; Papanicolaou, George (Department of Mathematics, Stanford University, Stanford, CA 94305-2125, USA)
Time reversal (TR) is a technique that can achieve remarkable temporal focusing (delay spread reduction) and spatial focusing (low spatial interference) in the context of wideband multiple/single input-single output systems. In this paper, we investigate a simplified form of time-reversal, referred to as one-bit time reversal. The efficiency of this technique has already been demonstrated for ultrasound applications. We apply it to radio waves and demonstrate that it can preserve the spatial focusing properties of TR, while requiring much simpler transmit filters. However, it does not have as good temporal focusing properties as pure TR.