Stefan MOCANU

Title: Traffic Optimization Procedures for Wireless Networks

Supervisor: Professor Radu DOBRESCU

Start date: 2005

The PhD thesis aimed the study of 802.11 family wireless networks. The main objective was focused on the protocol level, while the physical level – the radio communications level – was mentioned only when certain aspects related to it offered some solutions to the protocol level identified problems.

The first chapters of the thesis offered a critic but, nonetheless, well documented overview of the main characteristics of wireless networks, data streams (in general but also in particular for wireless networks) and the typical ways to avoid congestions and other problems in wireless networks. Conclusions and recommendations were made both for general areas and particular ones.

The 5th chapter was dedicated to practical studies which were consisted of 2 applications based on 2 different technical platforms. First study aimed the development of an optimal data transmission application using radio stations Harris Rf-5800V-MP. The results were highly appreciated all the more so they were obtained during a collaboration between PUB and ACTTM (The Agency for Military Technical and Technologies Research). The main result of this study consisted in reducing the transmission times up to 5 times compared to the times obtained using proprietary software offered by the producer of the stations. The second study focused on identification demonstration of fractal nature of data traffic in a wireless network. The wireless platform was based on Texas Instrument’s TRF6901 868 MHz to 870 MHz RF Tool Kits.

All the objectives were fulfilled and exceeded as per the PhD granting committee opinions and the specialists that have read and evaluated the thesis.