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In the literature, the network throughput of slotted Aloha with the capture model over fading channels has been found to be higher than e−1, the maximum network throughput of slotted Aloha with the collision model over ideal channel conditions. Such an improvement is often misinterpreted as the result of channel fading, which as we will demonstrate in this paper, indeed comes from the receiver. Specifically,...
The sum rate performance of random-access networks crucially depends on the access protocol and receiver structure. Despite extensive studies, how to characterize the maximum sum rate of the simplest version of random access, Aloha, remains an open question. In this paper, a comprehensive study of the sum rate performance of slotted Aloha networks is presented. By extending the unified analytical...
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