A single TCP session traversing a wireless channel is considered in this paper, with a constant SIgnal to Noise Ratio (SINR) at the receiver. The problem of determining the optimal transmission energy per bit is considered, to maximize TCP throughput. Specifically, in the case where direct sequence spread spectrum modulation is used over a fixed bandwidth channel, it was found that the optimal processing gain m that maximizes TCP throughput. Block codes applied to each packet for forward error correction can also be used, and in that case the joint optimization of the coding rate to maximize TCP throughput is considered. Finally, it discusses the issue of assigning target SINR values.
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