On the Performance of Diversity Reception of Coded DSSS in Nakagami Multipath Fading

In this paper new union bounds are derived for coded direct sequence spread spectrum (DSSS) with RAKE receivers over frequency-selective Nakagami-$m$ fading channels. The union bounds are expressed in the product form, which makes them easily evaluated using the transfer function of the code. The bounds are general to any number of resolvable multipath components and coding scheme with a known transfer function. Results show that the proposed bounds are tight to simulation results