Performance of cognitive radio networks with finite buffer using multiple vacations and exhaustive service
2014 (English)In: 2014, 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Proceedings, Institute of Electrical and Electronics Engineers Inc. , 2014, no 7021133Conference paper (Refereed)
In this paper, we analyze the performance of a cognitive radio network where the secondary transmitter, besides its own transmission, occasionally relays the primary signal. It is assumed that the secondary transmitter employs the exhaustive service mode to transmit the secondary signal and multiple vacations to relay the primary signal. When assisting the primary transmitter, we assume that the secondary transmitter utilizes the decode-and-forward protocol to process the primary signal and forwards it to the primary receiver. Furthermore, the secondary transmitter has a finite buffer, the arriving packets of the secondary network are modeled as a Poisson process, and all channels are subject to Nakagami-m fading. Modeling the system as an M/G/1/K queueing system with exhaustive service and multiple vacations, using an embedded Markov chain approach to analyze the system, we obtain several key queueing performance indicators, i.e., the channel utilization, blocking probability, mean number of packets, and mean serving time of a packet in the system. The derived formulas are then utilized to evaluate the performance of the considered system.
Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc. , 2014. no 7021133
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:liu:diva-116730DOI: 10.1109/ICSPCS.2014.7021133ScopusID: 2-s2.0-84923359281ISBN: 9781479952557OAI: oai:DiVA.org:liu-116730DiVA: diva2:801507
8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014