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GLOBECOM
2008
IEEE

A Cognitive Framework for Improving Coexistence Among Heterogeneous Wireless Networks

8 years 3 months ago
A Cognitive Framework for Improving Coexistence Among Heterogeneous Wireless Networks
—The proliferation of wireless systems requires that the coexistence between heterogeneous technologies be addressed. This paper presents a cognitive framework in which sensingbased resource management of an infrastructure system effectively suppresses interference to close-by ad-hoc or peer-topeer links. By utilizing its superior communication resources the infrastructure system estimates interference conditions and judiciously allocates transmission power such as to minimize interference. Despite adapting its transmission behavior, a rate constraint ensures that the infrastructure system continues to meet a specified quality-of-service level. The problem of optimal coexistence is formulated as a convex program. Structured solutions similar to classical water filling are derived and a solution method with guaranteed convergence is developed. An average-rate formulation extends the results to water filling across frequency and time. Numerical results corroborate our analysis and d...
Stefan Geirhofer, Lang Tong, Brian M. Sadler
Added 09 Nov 2010
Updated 09 Nov 2010
Type Conference
Year 2008
Where GLOBECOM
Authors Stefan Geirhofer, Lang Tong, Brian M. Sadler
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