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Maximum multiflow and maximum concurrent mul-tiflow in multi-channel multi-radio (MC-MR) wireless networks have been well-studied in the literature. They are NP-hard even in single-channel single-radio (SC-SR) wireless networks when all nodes have uniform (and fixed) interference radii and the positions of all nodes are available. While they admit a polynomial-time approximation scheme (PTAS) when...
Maximizing the wireless network capacity under physical interference model is notoriously hard due to the non-locality and the additive nature of the wireless interference under the physical interference model. This problem has been extensively studied recently with the achievable approximation bounds progressively improved from the linear factor to logarithmic factor. It has been a major open problem...
In this paper we analyze the effect of co-channel interference on multi-source multi-relay wireless networks under Rayleigh interference-limited fading channels. A joint source-relay-selection scheme, which selects the best source-relay pair to access the channel, is proposed. We derive the outage probability of the joint source-relay-selection scheme without/with direct links, from which the significance...
Because wireless networks use shared communication channels, contention and interference can significantly degrade throughput and fairness. Optimal rate control algorithms can be designed for wireless networks by modeling the contention between routers using capacity constraints and solving a convex optimization problem. In this work we develop a more accurate network model that directly incorporates...
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