This paper describes the expected performance for the single-sided silicon
detectors of the barrel tracker of CMS. We present results obtained on;P-si
de test structures for different detector design geometries (strip pitch an
d width) and two readout schemes (every strip or every second strip). We sh
ow measurements on devices irradiated by fast neutrons, operated at very hi
gh bias voltage well above the depletion. We use an analytical model to eva
luate the charge collection efficiency, noise, and signal-to-noise ratio in
realistic experimental conditions.