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This paper presents an overview of the new IEEE 802.11n standard which is the first wireless LAN standard based on MIMO-OFDM (Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing). The Paper describes how MIMO-OFDM technology delivers significant performance improvements for wireless LANs. It presents the simulation results reflecting(More)
All communities whether they are rural or urban will have to respond to safety, disasters, and emergency situations. These situations place a special burden on communication systems for having a fully operational system. Given the shortcomings of current Public Safety and Disaster Recovery, reliable wireless mobile communications that enable real-time(More)
– Optimized spectrum sensing using distributed detection techniques for secondary user spectrum access is becoming important in Cognitive Radio (CR) systems, which have been proposed to utilize the available frequency spectrum more efficiently. For achieving best performance and ensuring minimal acceptable interference to spectrum owners, it is important to(More)
We consider a decentralized detection problem where a set of n identical sensors send binary information to a fusion center for deciding one of two possible hypotheses, based on Neyman-Pearson criterion. Sensor observations are identical and independent, conditioned on a hypothesis. For a counting rule at the fusion center, we provide new results on the(More)
The telecommunication industry has been through disruptive times, but data networking service revenue has continued to rise. Services such as frame relay (FR), asynchronous transfer mode (ATM) and IP virtual private networks (IP VPN) are growing in terms of use and revenues and the signs are that the legacy layer 2 services are growing, and part of the(More)
As communications services are evolving, users are increasingly faced with a confusion of devices, subscriptions and numbers. Consumers are growing to expect ubiquitous, constant connectivity and access to all manner of information applications. Service providers, large and small, must simultaneously find ways to offset the declines in traditional sources(More)
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