Goodput and channel allocation in opportunistic spectrum access networks

Ahmed, Waqas and Gao, Jason and Zhou, Hong and Faulkner, Michael (2009) Goodput and channel allocation in opportunistic spectrum access networks. In: PIMRC 2009: 20th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 13-16 Sep 2009, Tokyo, Japan.

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In this paper, the expressions for the forced termination probability, blocking probability and aggregate goodput of a single channel SU network with fixed packet size are derived. For a given SU data rate and fixed header length, it has been shown that there exists an optimal payload length for SUs packets which maximizes the aggregate goodput. Using the derived results, the impact on the aggregate goodput by three channel allocation methods i.e., intuitive, optimal, and proposed heuristic is investigated in a multiple channel CR network. Numerical studies show that the goodput of the proposed heuristic method is about 90-95% of that of the optimal method, and about 20-25% better than that of the intuitive method. Simulation results are also included.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
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Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Electrical, Electronic and Computer Engineering
Date Deposited: 10 Feb 2010 06:05
Last Modified: 24 Jul 2014 11:55
Uncontrolled Keywords: opportunistic spectrum access; channel allocation; good put; radio communication; data rates; forced termination probability; multiple channels; optimal methods; packet size; simulation result
Fields of Research : 08 Information and Computing Sciences > 0805 Distributed Computing > 080503 Networking and Communications
09 Engineering > 0906 Electrical and Electronic Engineering > 090609 Signal Processing
08 Information and Computing Sciences > 0805 Distributed Computing > 080502 Mobile Technologies
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1109/PIMRC.2009.5450283

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