The LPI and LPD features of spread spectrum allow transmission between users of a spread spectrum CDMA communications system without the existing users of {HEAD ~ the mobile cellular system} experiencing {TAIL ~ significant interference} 
experiencing
The LPI and LPD features of spread spectrum allow transmission between users of a spread spectrum CDMA communications system without the existing users of { HEAD ~ the mobile cellular system } experiencing { TAIL ~ significant interference }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL