Jörg Lotze | Trinity College Dublin (original) (raw)
Papers by Jörg Lotze
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IEEE Symposia on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), Chicago, IL, USA, Oct 1, 2008
Nodes in dynamic spectrum access networks opportunistically use free areas of spectrum, also call... more Nodes in dynamic spectrum access networks opportunistically use free areas of spectrum, also called white spaces, for communication. A common problem in such networks is achieving rendezvous between a transmitter and a receiver, ie, establishing a communication link on the same frequency band. One possible solution is to use a common control channel where each transmitter can propagate information about which channel it is using. However, the frequency of this dedicated control channel has to be known a priori ...
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GLOBECOM - IEEE Global Telecommunications Conference, 2009
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IEEE Journal on Selected Areas in Communications, 2000
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ACM SIGCOMM Conference
We show the use of a novel, high-level FPGA-based cognitive radio framework in implementing a dem... more We show the use of a novel, high-level FPGA-based cognitive radio framework in implementing a demonstration of video transmission over a frequency-agile radio link. The demo uses spectrum sensing to detect the transmission frequency and adapts the forward error correction scheme to the channel conditions autonomously.
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2010 Proceedings of the 5th International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCom 2010, 2010
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Software-Defined Radio Forum Technical Conference (SDR Forum), Dec 1, 2009
Femtocells are a promising solution to provide high coverage and high data rates inside consumer&... more Femtocells are a promising solution to provide high coverage and high data rates inside consumer's homes while cutting operator costs significantly. Next generation Long Term Evolution (LTE) femtocells are likely to be deployed in GSM spectrum, increasing frequency utilisation and allowing a smooth transition to LTE. This paper proposes to use a spectrum sensing technique specialised for LTE signals to avoid interference between neighbour femtocells without operator intervention. Simulation results of the detection ...
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IET Conference Publications, 2008
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Proceedings - IEEE Symposium on Field Programmable Custom Computing Machines, FCCM 2009, 2009
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ntu.edu.sg
Objectives A primary goal for the proposed framework is to allow communications engineers (ie, no... more Objectives A primary goal for the proposed framework is to allow communications engineers (ie, non-hardware experts) to quickly design and implement cognitive radios on FPGAs, thus gaining from the significant performance and power advantages they provide. F PGAs a re traditionally considered to be hardware devices, which are difficult to use since they require experience in low-level hardware design. The radio designer on the other hand prefers to focus on the radio design and not think about implementation details on the FPGAs. We ...
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Globecom 2009 2009 Ieee Global Telecommunications Conference, 2009
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Bookmarks Related papers MentionsView impact
IEEE Symposia on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), Chicago, IL, USA, Oct 1, 2008
Nodes in dynamic spectrum access networks opportunistically use free areas of spectrum, also call... more Nodes in dynamic spectrum access networks opportunistically use free areas of spectrum, also called white spaces, for communication. A common problem in such networks is achieving rendezvous between a transmitter and a receiver, ie, establishing a communication link on the same frequency band. One possible solution is to use a common control channel where each transmitter can propagate information about which channel it is using. However, the frequency of this dedicated control channel has to be known a priori ...
Bookmarks Related papers MentionsView impact
GLOBECOM - IEEE Global Telecommunications Conference, 2009
Bookmarks Related papers MentionsView impact
IEEE Journal on Selected Areas in Communications, 2000
Bookmarks Related papers MentionsView impact
ACM SIGCOMM Conference
We show the use of a novel, high-level FPGA-based cognitive radio framework in implementing a dem... more We show the use of a novel, high-level FPGA-based cognitive radio framework in implementing a demonstration of video transmission over a frequency-agile radio link. The demo uses spectrum sensing to detect the transmission frequency and adapts the forward error correction scheme to the channel conditions autonomously.
Bookmarks Related papers MentionsView impact
2010 Proceedings of the 5th International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCom 2010, 2010
Bookmarks Related papers MentionsView impact
Software-Defined Radio Forum Technical Conference (SDR Forum), Dec 1, 2009
Femtocells are a promising solution to provide high coverage and high data rates inside consumer&... more Femtocells are a promising solution to provide high coverage and high data rates inside consumer's homes while cutting operator costs significantly. Next generation Long Term Evolution (LTE) femtocells are likely to be deployed in GSM spectrum, increasing frequency utilisation and allowing a smooth transition to LTE. This paper proposes to use a spectrum sensing technique specialised for LTE signals to avoid interference between neighbour femtocells without operator intervention. Simulation results of the detection ...
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IET Conference Publications, 2008
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Proceedings - IEEE Symposium on Field Programmable Custom Computing Machines, FCCM 2009, 2009
Bookmarks Related papers MentionsView impact
ntu.edu.sg
Objectives A primary goal for the proposed framework is to allow communications engineers (ie, no... more Objectives A primary goal for the proposed framework is to allow communications engineers (ie, non-hardware experts) to quickly design and implement cognitive radios on FPGAs, thus gaining from the significant performance and power advantages they provide. F PGAs a re traditionally considered to be hardware devices, which are difficult to use since they require experience in low-level hardware design. The radio designer on the other hand prefers to focus on the radio design and not think about implementation details on the FPGAs. We ...
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Globecom 2009 2009 Ieee Global Telecommunications Conference, 2009
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