Frequency hopped systems for PCS

The application of frequency hopping methods to cellular and personal communication systems (PCS) is studied. The performance enhancements due to the use of frequency hopping (FH) is initially reviewed followed by a brief summary of previously designed cellular/PCS systems that have incorporated FH methods. A slow frequency hop (SFH) prototype (which incorporated a hybrid form of multiple access, in particular slow frequency hopping CDMA combined with time division multiple access (TDMA)) was developed for PCS applications is then described. Performance results using the SFH prototype in laboratory and field trials are provided. These results demonstrate the excellent performance that may be obtained in PCS environments using a SFH architecture which has a complexity level that is suitable for PCS implementation