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Error rate of asynchronous DS-CDMA in Nakagami fading

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2 Author(s)
Cheng, J. ; Dept. of Electr. Eng., Lakehead Univ., Thunder Bay, Ont., Canada ; Beaulieu, N.C.

An accurate bit-error-rate (BER) calculation method is derived for a binary direct-sequence (DS) spread-spectrum multiple-access (SSMA) system using conventional matched filter receivers and random sequences on flat-fading Nakagami channels. A closed-form expression for the characteristic function of a sum of multiple Nakagami interfering signals is found. The accuracy of the standard Gaussian approximation (SGA) is assessed for DS code-division multiple-access (CDMA) systems operating on Nakagami fading channels.

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Wireless Communications, IEEE Transactions on  (Volume:4 ,  Issue: 6 )