PREDETECTION QUALITY DIVERSITY SCHEME FOR DECT OUTDOOR APPLICATIONS

A simple and effective metric for antenna diversity in DECT is introdu ced. Using a segment of only 2 to 4 bit periods, this metric provides a reliable estimation of the received signal quality. To emulate ideal selection diversity in a sine receiver, this metric is calculated by performing two successive measurements on each antenna during the DECT preamble. When using a correlative clock timing, this diversity provi des a performance improvement similar to an ideal CRC-driven selection diversity employing two parallel receivers. This offers a cheap and s imple solution to DECT outdoor applications such as PCS.