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Study Analysis of H.D.A.F Relaying Protocols in Cognitive Networks: 2-Hops based Hybrid Decode Amplify and Forward Relaying Protocols employing 2 x 2 OSTBC Alamouti scheme in MIMOs Systems - Softcover

Qazi, Awais Salman; Shoaib, Muhammad; Saleem, Muhammad Shahan

 
9783659430947: Study Analysis of H.D.A.F Relaying Protocols in Cognitive Networks: 2-Hops based Hybrid Decode Amplify and Forward Relaying Protocols employing 2 x 2 OSTBC Alamouti scheme in MIMOs Systems
Softcover
ISBN 10: 3659430943 ISBN 13: 9783659430947
Verlag: LAP LAMBERT Academic Publishing, 2013

Inhaltsangabe

The concept of cooperative communication in cognitive radio CR networks is used to economize the over utilization of spectrum in accommodating a rising demand of higher data rates for wireless services. The CR typically consists of the Primary User (PU), the Cognitive Relays (CRs), the Cognitive Controller (CC) and the Secondary User (SU). The PU sends its spectrum information to the CRs and CRs decode and re-encode the transmitted data by using Maximum Likelihood estimation and 2 x 2 Alamouti OSTBC techniques and later amplify the OSTBC (re-encoded) data at the relays. All the relays in the system forward their collective decision to CC to finalize its decision on the basis of the information provided by the relays. The CC uses the method known as the spectrum energy detection to compare the energy of PU spectrum with a predefined threshold. If it finds the energy of PU's spectrum exceeding the threshold, it means that PU's spectrum can be spared for SU otherwise PU is busy in its spectrum. This book is written by a Computer Scientist, a Computer Engineer and an Electrical Engineer and thus requires no prerequisite knowledge of the students but an interest in Radio communication.

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Über die Autorin bzw. den Autor

Awais Salman Qazi was born in Rawalpindi, Pakistan in 1982. He completed his BSc (Honors) in Computer Science from University of Engineering & Technology, Lahore in 2005.He further did his Master of Science in Engineering with emphasis on Telecommunications from Blekinge Institute of Technology, Sweden in 2012.He is also a student member of IEEE.

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Verlag
LAP LAMBERT Academic Publishing
Erscheinungsdatum
2013
Sprache
Englisch
ISBN 10 
3659430943
ISBN 13 
9783659430947
Einband
Taschenbuch
Anzahl der Seiten
96
Kontakt zum Hersteller
Nicht verfügbar
Verantwortliche Person
SIA OmniScriptum Publishing
customerservice@vdm-vsg.de

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