Title :
The effects of Ricean fading channel on fast frequency hopping spread spectrum communication systems
Author :
Muammar, Rushdi H.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Illinois Univ., Chicago, IL, USA
Abstract :
The performance of a fast frequency-hopped multilevel frequency-shift keying (FFH/MFSK) system operating through noisy, fading multipath channels is investigated. Additive white Gaussian noise (AWGN) and Rice distribution with random-to-specular ratio (K) are used to model the microcellular environment. The effect of a Ricean fading channel on user capacity is evaluated. Expressions are derived for the bit error rate of the OOK modulation scheme in the Ricean fading channel. At an average bit error rate of 10-3 and with perfect transmission (where the only degradation is due to mutual interference), the system capacity and the spectrum efficiency are found to be 209 users and 33.44% respectively. In microcellular environments the system capacity and spectrum efficiency are found to be 169 and 27.2% respectively, at the same error rate
Keywords :
cellular radio; channel capacity; digital radio systems; fading; frequency agility; frequency shift keying; spread spectrum communication; white noise; AWGN; FFH/MFSK; OOK modulation scheme; Rice distribution; Ricean fading channel; additive white Gaussian noise; bit error rate; fading multipath channels; fast frequency hopping; microcellular environment; multilevel frequency-shift keying; mutual interference; random-to-specular ratio; spectrum efficiency; spread spectrum communication; user capacity; AWGN; Additive white noise; Bit error rate; Channel capacity; Degradation; Fading; Frequency shift keying; Gaussian noise; Multipath channels; Working environment noise;
Conference_Titel :
Computer and Communication Systems, 1990. IEEE TENCON'90., 1990 IEEE Region 10 Conference on
Print_ISBN :
0-87942-556-3
DOI :
10.1109/TENCON.1990.152607
