DocumentCode :
1938188
Title :
Joint resource allocation and sensing scheduling for cognitive ultra wideband
Author :
Aripin, Norazizah Mohd ; Rashid, Rozeha A. ; Fisal, Norsheila ; Latiff, L.A. ; Ariffin, Sharifah Hafizah Syed ; Syed-Yusof, S.K. ; Lo, Anthony ; Sarijari, M. Adib
Author_Institution :
Fac. of Electr. Eng., Univ. Teknol. Malaysia, Skudai, Malaysia
fYear :
2010
fDate :
Oct. 31 2010-Nov. 3 2010
Firstpage :
66
Lastpage :
71
Abstract :
Cross layer design is considered as an attractive strategy to enable multimedia transmission over cognitive ultra wide band (C-UWB) system experiencing time-varying channel conditions and traffic characteristics. The close dependency among various parameters across protocol stacks need to be addressed to determine the optimum cross layer approach. Hence, this paper highlights a MAC centric cross layer approach that is aware of sensing activity and channel conditions at the PHY layer, resource allocation at the MAC layer and MPEG-4 video at the APP layer. The cross layer actions are determined through optimal sensing scheduling and dynamic packet reception rate (PRR) based resource allocation to improve video transmission quality. Two important sensing approaches, local and cooperative OR-rule are also discussed in detail. Then, the impact of the proposed sensing scheduling and resource allocation to the video transmission are evaluated accordingly.
Keywords :
access protocols; cognitive radio; multimedia communication; resource allocation; scheduling; telecommunication traffic; time-varying channels; ultra wideband communication; APP layer; MAC centric cross layer approach; MPEG-4 video; PHY layer; cognitive ultra wideband system; cooperative OR-rule; cross layer design; dynamic packet reception rate; joint resource allocation; local OR-rule; multimedia transmission; optimal sensing scheduling; protocol stacks; time-varying channel condition; traffic characteristics; video transmission quality; Bit error rate; Cross layer design; Interference; Multimedia communication; Resource management; Sensors; Signal to noise ratio; Resource allocation; cognitive radio; cross layer design; sensing time; spectrum sensing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Telecommunication Networks and Applications Conference (ATNAC), 2010 Australasian
Conference_Location :
Auckland
Print_ISBN :
978-1-4244-8173-6
Electronic_ISBN :
978-1-4244-8171-2
Type :
conf
DOI :
10.1109/ATNAC.2010.5680258
Filename :
5680258
Link To Document :
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