1. H.H.Hmimy and S.C.Gupta, “ Overlay of Cellular CDMA on AMPS Forward and Reverse Link Analysis”, IEEE Trans. on Veh. Technol., Vol.45, No.l, pp.51–56, Feb. 1996
2. D.G.Jeong, I.G.Kim and D.W.Kim, “Capacity Analysis of Spectrally Overlaid Multiband CDMA Mobile Networks”, IEEE Trans. on Veh. Technol., Vol.47, No.3, pp.798–807, Aug. 1998
3. D.W.Kim, I.G.Kim and D.G.Jeong, “Capacity Analysis of Spectrally overlaid Narrowband and Wideband CDMA Systems for Future Mobile Communications Services”, IEICE Trans. on Commun., Vol.E82-B, No.8, pp.1334–1342, Aug. 1999
4. R.L.Pickholtz, L.B.Milstein and D.L.Schilling, “ Spread Spectrum for Mobile Communications”, IEEE Trans. on Veh. Technol., Vol.40, No.2, pp.313–321, May 1991
5. J.S.Wu, J.K.Chung and Y.C.Yang, “Performance Study for a Microcell Hot Spot Embedded in CDMA Macrocell Systems”, IEEE Trans. on Veh. Technol., Vol.48, No.l, pp.47–59 Jan. 1999