CDMA overlay situations for microcellular mobile communications

Absmucr-Direct sequence code division multiple access commun-kations is a promising approach to cellular mobile communications , whkh operates in an environment characterized by mul-tipath Rician fading. In this paper, the CDMA network is assumed to share common spectrum with a narrowband microwave user. Because of the presence of the narrowband waveform, an interference suppression filter at each CDMA receiver is employed to reject the narrowband interference. The problem of interference from adjacent cells is also considered. Average power control is assumed to combat the nearlfar problem , and multipath diversity, in conjunctlon with simple Inter-leaved channel coding, is considered for improving the performance of the CDMA system.