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Recently, it has been shown that CSMA-type random access algorithms can achieve the maximum possible throughput in ad hoc wireless networks. However, these algorithms assume an idealized continuous-time CSMA protocol where collisions can never occur. In addition, simulation results indicate that the delay performance of these algorithms can be quite bad. On the other hand, although some simple heuristics...
We study the end-to-end delay bounds that can be achieved in wireless networks using packet deadlines. We assume a set of flows in the network, for which flow i has burst parameter ??i, injection rate ??i, and path length Ki. It was already known that, in wireline networks, the Coordinated-Earliest-Deadline-First (CEDF) protocol can achieve and end-to-end delay of approximately (??i/??i)+Ki, whereas...
While there has been much progress in designing backpressure based stabilizing algorithms for multihop wireless networks, end-to-end performance (e.g., end-to-end buffer usage) results have not been as forthcoming. In this paper, we study the end-to-end buffer usage (sum of buffer utilization along a flow path) over a network with general topology and with fixed, loop-free routes using a large-deviations...
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