Advances in Radio Science www.adv-radio-sci.net 1684-9965 1684-9973 2 Kleinheubacher Berichte 2003 2004 10.5194/ars-2-127-2004 http://www.adv-radio-sci.net/2/127/2004/ http://www.adv-radio-sci.net/2/127/2004/ars-2-127-2004.html http://www.adv-radio-sci.net/2/127/2004/ars-2-127-2004.pdf 127 133 2005-05-27 Link budget comparison of different mobile communication systems based on EIRP and EISL G. Fischer F. Pivit W. Wiebeck Lucent Technologies, Bell Labs Advanced Technologies, Thurn-und-Taxis-Straße 10, 90411 Nuremberg, Germany Institut für Höchstfrequenztechnik und Elektronik, Universität Karlsruhe, Kaiserstraße 12, 76128 Karlsruhe, Germany The metric EISL (Equivalent Isotropic Sensitivity Level) describing the effective sensitivity level usable at the air interface of a mobile or a basestation is used to compare mobile communication systems either based on time division or code division multiple access in terms of coverage and emission characteristics. It turns out that systems that organize the multiple access by different codes rather than different timeslots run at less emission and offer greater coverage.