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Many wireless ad-hoc networks, such as sensor networks and networked embedded control systems, must support data dissemination with strict end-to-end latency constraints. In addition, such networks are often resource constrained, e.g., they should support energy management techniques such as coordinated sleep/wakeup mechanisms. Existing solutions to the real-time streaming problem are inefficient in resource consumption and have large coordination overheads (such as TDMA-based approaches), or they are unpredictable, i.e., they can only support soft real-time systems (such as contention-based approaches). This paper introduces DARTS, a protocol for dynamic resource allocations for real-time streams in static wireless multihop networks.
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