Performance Analysis of Slotted Aloha Protocol in Wireless Cognitive Radio Networks

Öz

With the growing use of frequency based services

and devices, the cognitive radio network has become an

important technology for the future of wireless networks.

However, the number of frequency based network applications

for fixed and mobile devices both in licensed, and unlicensed

networks also shows a significant increase. In addition to

frequency based applications; for efficient use of spectrum in

cognitive radio networks, characteristics of medium access

techniques is utilized. Among these medium access techniques,

slotted Aloha technique is among the most preferred. In our

study, simulation of a cognitive radio network environment that

consists of primary and secondary users utilizing slotted Aloha

medium access technique is performed. The simulation of

designed network environment is carried out by using Riverbed

software. Upon making end to end delay analysis of the designed

network, the results of maximum number of users that could be

supported in cognitive radio networks utilizing slotted Aloha

technique is observed.

Anahtar Kelimeler

• Cognitive radio,delay analysis,slotted Aloha

Kaynakça

1. [1] A.J. Faria, J. M. C. Brito, “Average Delay in Cognitive Radio Networks using Slotted Aloha”, IEEE International Conference on Communications, Computers and Applications, Istanbul, Turkey, 2012. [2] S. Choe, “Throughput and Delay of Slotted-Aloha based Cognitive Packet Radio Network”, IEEE International Conference on Communication Systems, Guangzhou, China, 2008. [3] H. Takagi, L. Kleinrock, “Throughput-Delay Characteristics of some Slotted-Aloha Multihop Packet Radio Networks”, IEEE Transactions on Communications, Vol. COM-33, No. 11, pp. 1200-1207, 1985. [4] W. Yue, “Output and Delay Processes in a Slotted Aloha Multichannel Packet Radio Network with Capture”, IEEE International Phoenix Conference on Computers and Communications, Scottsdale, Arizona, United States of America, 1991. [5] C. Çiflikçi, A. T. Tuncer, A. T. Özşahin, S. M. Yesbek, “Bilişsel Radyo ve Ortam Erişim Kontrol Katmanı Protokolleri”, Uluslararası İleri Teknolojiler Sempozyumu, Karabuk, Turkey, 2009. [6] V. Naware, G. Mergen, L. Tong, “Stability and Delay of Finite-User Slotted Aloha with Multi Packet Reception”, IEEE Transactions on Information Theory, Vol. 51, No. 7, pp. 2636-2656, 2005. [7] Y. Yang, T. S. P. Yum, “Delay Distributions of Slotted Aloha and CSMA”, IEEE Transactions on Communications, Vol. 51, No. 11, pp. 1846-1857, 2003. [8] G. A. Cunningham, “Delay versus Throughput Comparisons for Stabilized Slotted Aloha”, IEEE Transactions on Communications, Vol. 38, No. 11, pp. 1932-1934, 1990. [9] F. L. Lo, T. S. Ng, T. I. Yuk, “Delay-Throughput Comparison of Single and Multi-Channel Slotted Aloha Networks”, IEEE International Conference on Communication Technology, Beijing, China, 1996. [10] A. Tremeau, N. Borel, “Throughput and Delay Analysis of Two-Tier Slotted Aloha”, IEEE Wireless and Optical Communications Conference, Newark, New Jersey, United States of America, 2009. [11] S. Solak, “Kablosuz Algılayıcı Ağlarda kullanılan MAC Protokollerinin Karşılaştırmalı Başarım Analizi”, Yuksek Lisans Tezi, Kocaeli University, Graduate School Of Natural And Applied Sciences, 2008. [12] Riverbed Modeler Software, 2015. http://www.riverbed.com/products/steelcentral/opnet.html.