Abstract
We consider a direct-sequence spread-spectrum multiple access communication system with convolutional error correction coding and hard decision decoding. This system operates as a wireless packet communications network. We explore several techniques to calculate the packet error probability and throughput of such a system. These techniques can be clasified as either bounding methods or approximations. We describe a bounding technique which improves on the best previous bounds and compare this bound to a recent approximation. Although the two techniques yield very different values for throughput, both techniques result in similar choices for the optimum rate of an error correction code.
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