e strange effect in the capacity calculations for a system of WLL subscribers: The pri- 2The sanity test of this is to consider the case where b and C are collocated or even the exact same antenna face. The capacity equation should give the same answer if we divide the users of one antenna face into two groups and consider them as separate cell sectors b and C with the same radio paths to both sets of users B and C. Then Mbb + Mbc is a + 1 - (Ob + c), the same term we would have if we had considered b and C together. Reverse and forward are actually in a transpose relationship because we represented r as a col- umn vector on the right side of M, and T is a row vector on the left side of M. Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com Copyright © 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. CDMA Principles for Multicellular Systems CDMA Principles for Multicellular Systems mary interfering path from one cell to another is the signal path from user terminals to base stations on the other side of their serving cells because those base stations are in the same direction as the serving radio path. As we move further away from the serv- ing base station, the radio paths to the two base stations become closer in signal path gain and, therefore, contribute more to the interference coefficient Mbc. While WLL reduces cell-to-cell interference, face-to-face interference in the same cell is unaffected by the user antenna. The antenna faces of one base station are all in the same place and all enjoy the same radio path advantage of the WLL directive antenna beam. 28.1.4 CDMA overflow of blocked traffic The equations tell us, also, that having an overloaded cell overflow its excess demand onto other cells with poorer radio paths is going to hurt more than it helps. If the users have better path gain to the busy cell than to the neighbor cells, then the Mb compo- nents of interference actually will be greater 