Extended Delivery Time Analysis of Cognitive Data Transmission Over Multiple Primary Channels
KAUST DepartmentCommunication Theory Lab
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Online Publication Date2019-02-21
Print Publication Date2018-12
Permanent link to this recordhttp://hdl.handle.net/10754/631508
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AbstractCognitive radio (CR) systems can improve radio spectrum utilization by allowing secondary access of underutilized spectrum resources. With interweave cognitive implementation, secondary users have to wait for spectrum opportunities before their transmission. Therefore, the total delivery time of secondary transmission consists of both waiting slots and transmission slots. In this work, we study the resulting extended delivery time (EDT) of secondary transmission for a fixed amount of data over multiple primary channels. In particular, a birth-death process is introduced to model the number of available primary channels, based on which, we derive the distribution function of the EDT for both continuous and periodic sensing cases. We also present selected numerical results to illustrate the mathematical formulation.
CitationKhalid MN, Usman M, Yang H-C, Alouini M-S (2018) Extended Delivery Time Analysis of Cognitive Data Transmission Over Multiple Primary Channels. 2018 IEEE Global Communications Conference (GLOBECOM). Available: http://dx.doi.org/10.1109/glocom.2018.8647979.