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Notation Ic PE R RA R R. RA S W.. L G L. K L 11 G B Parameter Carrier frequency Transmitter power Data (bit) rate Chip rate Channel bit rate Walsh waveform rate Walsh chip rate One user's received power Spread-spectrum bandwidth Error correcting code rate Path loss Transmitting Antenna Gain Receiver figure of merit Small-scale fuding loss Other losses Boltzman constant Link Margin The number of supported users per cell Processing Gain Bit-error probability Nonsynchronous interference factor Voice activity factor Outer-cell interference factor Interference power Interference power spectral density Received power-to-interference power spectral den sity ratio Energy per bit-to-Noise power spectral density ratio Required Energy per bit-to-Noise power spectral density ratio Energy per bit-to-Interference power spectral density ratio Energy per bit-to-Noise and Interference power sper tral density ratio Spread spectrum chip energy-to-interference power spectral density ratio Channel bitergy-to-interference power spectral density ratio Walsh waveform energy-to-interference power spec tral density ratio Walsh chip energy-to-Interference power spectral density ratio Table 1: Table of notations G H. 1 1. N.T. - 1. A hand-held direct-sequence spread-spectrum (DS/SS) radio is part of a cellular CDMA system. The system specifications are as follows: data and SS-code modulation is BPSK, data rate (R) is 8000 bit/s, carrier frequency (fe) is 1 GHz, chip rate (Rich) is 25 Mchips/s, worst-case path loss (L,) is 138.6 dB, gain of transmitting antenna (Ge) is 5 dBi, receiver figure-of-merit (&) is -18 dB/K, occasional deep small-scale fading loss (L') is 30 dB, other losses (L.) are 4 dB, required is 4 dB. Assume link Margin, Lm is unity. The required transmitted power (P) during deep small-scale feeding is: Hint: The link margin is given by, LM = PG(9) and k is Boltz- RkLpLoL'S mann's constant. regd