ivided by the noise level, the CDMA equivalent of S/N ratio. d is the effect of Doppler distortion and any other distortion due to motion, SO a station- ary call has d = 0 dB and a call from a moving car has d = 2 dB. f is the interference contribution from other cells relative to the carrier on the serving cell sector. g is the interference contribution from other sectors of the same cell relative to the carrier on the serving sector. h is the overhead for pilot and power control relative to the carrier on the serving sector. p is the effect of power-control delays and errors, so perfect power control is p = 0 dB (p = 1), and values less than 1 reflect lower performance. U is the voice activity factor, so U = 1 represents channels that are always on and U = 2/3 represents channels that are powered off one-third of the time. S is the effect of soft and softer handoff in the forward direction, counting each extra serv- ing antenna, so a system with one-half the traffic served by two cells has S = 1/2 and a sys- tem with half that traffic served by three cells has S = 3/4. j is the orthogonality or joint-detection (JD) effect, so an uncorrelated CDMA carrier has j = 0, a fully orthogonal carrier has j = 1, and a system using joint detection has j = 0.8 = - 1 dB). TABLE 30.1 CDMA Capacity Parameters Eg/No, Direction Mchps kbits cdmaOne 1.2288 cdmaOne 1.2288 cdma2000 voice 1.2288 cdma2000 voice 1.2288 cdma2000 data 1.2288 160.0 cdma2000 data 1.2288 160.0 W-CDMA voice W-CDMA voice W-CDMA data 160.0 W-CDMA data 160.0 TD-SCDMA voice TD-SCDMA voice TD-SCDMA data 160.0 TD-SCDMA data 160.0 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. Capacity Issues Specific to CDMA Capacity Issues Specific to CDMA m is the contribution of multipath time sidelobes (after the rake filter described in Sec. 8.4) relative to the carrier on the serving cell sector, so m