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- 1Acknowledgment signals
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Design of Optimal Frameworks for Wideband/Multichannel Spectrum Sensing in Cognitive Radio Networks
DownloadSpring 2011
Several optimal detection frameworks for wideband/multichannel spectrum sensing in cognitive radio networks are proposed. All frameworks search for multiple secondary transmission opportunities over a number of narrowband channels, enhancing the secondary network performance while respecting the...
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Performance evaluation and protocol design of fixed-rate and rateless coded relaying networks
DownloadSpring 2011
The importance of cooperative relaying communication in substituting for, or complementing, multiantenna systems is described, and a brief literature review is presented. Amplify-and-forward (AF) and decode-and-forward (DF) relaying are investigated and compared for a dual-hop relay channel. The...
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Spring 2011
Multihop routing is an effective method for establishing connectivity between the nodes of a network. End-to-end outage probability and total power consumption are applied as the optimization criteria for routing protocol design in multihop networks based on the local channel state information...
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Statistical analysis of multiuser and narrowband interference and superior system designs for impulse radio ultra-wide bandwidth wireless
DownloadFall 2011
Ultra-wide bandwidth (UWB) wireless is a fast emerging technology which exploits major advances and offers unprecedented opportunity to impact wireless communications. In UWB systems, several users should coexist viably in the same coverage area. The multiuser interference (MUI) caused by...