A CDMA cellular system in a mobile base station environment

In an area devoid of a communications infrastructure, it may be necessary to set up a temporary, mobile communications architecture. In such a scenario, both mobiles and base stations must be able to be in motion without sacrificing system performance. To ensure uniform performance throughout each cell, an adaptive power control scheme is essential. However, even this may not be sufficient to counteract the effect of mobile cells which may “overlap” spatially. Here we evaluate the performance of a direct-sequence code-division multiple-access (DS-CDMA) scheme in a mobile cellular environment taking into account the effects of overlapping cells and various channel models. We also examine the effect of imperfect power control on capacity, as well as the performance improvement obtained using convolutional coding with soft decision decoding