Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
Permanent URI for this collectionhttps://hdl.handle.net/11147/11
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Conference Object Effect of Traffic Arrival Distributions on Routing Strategy in Multi-Hop Wireless Networks(Association for Computing Machinery (ACM), 2016) Aydoğdu, CananThe basic problem of whether direct transmission or multi- hop routing increases goodput in multi-hop wireless net- works still lacks investigation from many aspects. This ar- ticle, approaches this problem by considering the effect of different traffic arrival distributions on the choice of rout- ing strategy for enhancing goodput of IEEE 802.11 DCF based multi-hop wireless networks under hidden terminal existence. Different traffic arrival distributions including Poisson, constant bit rate (CBR), Pareto and Exponential are considered, relaxing the generally adopted Poisson as- sumption, for various data rates over a wide range of traffic loads extending from unsaturated to saturated traffic loads. The goodput performance for all traffic arrival distribu- tions is found to be dependent on the traffic load in multi- hop networks. Of the four traffic models used, the network achieved the best goodput with Pareto and Exponential ar- rival distributions for light traffic loads, where CBR per- forms slightly better under heavy loads. The results suggest that a traffic load-aware pre-control mechanism on the traffic arrivals to the IEEE 802.11 MAC layer might provide signicant goodput gains in multi-hop wireless networks.Article Citation - Scopus: 2An Overview of Telemedicine in Turkey(Trade Science Inc., 2013) Aydoğdu, Canan; Aydoğdu, ÖzgüThis study focuses on telemedicine in Turkey by the use of the Internet, where the potential for telemedicine of Turkey, telemedicine initiatives conducted in Turkey until now are examined first. The types of applications that the Internet can support in consumer health, clinical care, financial and administrative transactions, public health, health professional education in Turkey are investigated next. Finally, a discussion on the technical, legal and bureaucratic obstacles for realizing telemedicine in Turkey over the Internet and suggestions on how to overcome these obstacles are presented. © 2013 Trade Science Inc.-INDIA.