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This paper investigates the fundamental limits on the gain of joint network coding and link-layer transmission rate diversity in wireless multicast applications. Network Coding has been shown to improve throughput of wireless multicast in various scenarios and applications. Those applications can further exploit link-layer rate diversity, whereby individual nodes can transmit at faster rates than...
Both bandwidth and energy become important resource constraints when multi-hop wireless networks are used to transport relatively high data rate sensor flows. A particularly challenging problem involves the selection of flow data rates that maximize application (or mission) utilities over a time horizon, especially when different missions are active over different time intervals. Prior works on utility...
This paper studies probabilistically reliable multicast in wireless mesh networks (WMNs), utilizing MAC layer re-transmission and wireless broadcast advantage to improve both the multicast throughput and the delivery rate. We first present a new multicast routing metric which we call the expected multicast transmissions (EMT). EMT captures the effect of link packet delivery ratio, MAC layer retransmission...
A multi-rate capable IEEE 802.11a/b/g node can utilize different link-layer transmission rates. Interestingly, multi-rate capability is defined by IEEE802.11 standards only for unicast transmissions. In this paper, we consider a novel type of multi-radio multi-channel wireless mesh network (WMN) where a radio can multicast at different link-layer transmission rates to its neighbors. Such link-layer...
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