Research Projects
Simulation of 2D Football Team to Participate in the World League of Robocop
Payame Nour University (PNU)
July 2012
- Researcher: Iman Asari Moghadam
- Supervisor: Ali Ghavami
- Abstract: This thesis aims to review the incremental development and design and implementation of a soccer simulation team along with its prominent aspects. This team is a soccer simulation team consisting of 11 autonomous agents who interact in a physically simulated environment called a soccer server.
Soccer Server provides a fully distributed and real-time system in such a way that each agent must cooperate with other teammates to achieve the ultimate goal of winning the game.
This simulator system models many aspects and properties of a real environment such as Noise in the movement of objects, Noise in sensors and actuators, limited physical abilities, and restricted communication. The present thesis contributes define the architecture of an agent in a multi-layer model, synchronize an agent with the simulator, new localization method for the agent, analyze and develop the agent’s world model using the partial sensation of the environment, tactics and strategies used in defending against opponent’s penetration and attacking to its defending lines, and finally focus on algorithms to break the defiance line of the opponent and scoring a goal.
Wireless Sensor Networks-based Traffic Monitoring
Payame Nour University (PNU)
August 2012
- Researcher: Maryam Heydari Panah
- Supervisor: Ali Ghavami
- Abstract: Traffic digestion has become a growing problem in the world. The question is how the right solution can be found to fix this problem in addition to using the old solutions like building more bridges and roads. The answer to the question mentioned above is to use intelligent transportation systems (ITS) in wireless sensor networks. These networks are used a lot due to their small, inexpensive and intelligent equipment. Wireless sensor network plays a significant role in today’s world.
This study aims to compare the traditional techniques of traffic control and prove that the use of wireless sensor networks is the best solution, and then the various aspects, applications and challenges in wireless sensor networks are introduced. In addition, the use of such networks in traffic monitoring systems and points like vehicle detectors, prediction algorithms and architectures for WSN-based integrated control of traffic is discussed.
In next section, the wireless sensor network architecture that enables the network for data processing and wireless communication will be introduced and their strengths and weaknesses identified. It is shown how WSN applications in intelligent transportation systems improve performance and outcomes. Then, mobile sinks querying in a wireless sensor network is described and the problem of network load balancing is referred. Additionally, the energy management and mobility management strategies are investigated. Then, an end-to-end WSN system is introduced and its structure, function and applications is described. In the following, the performance of a wireless sensor network that uses the camera in traffic control is mentioned and its methods, limitations and implementation is explained.
Finally, an important and widely used system in traffic control, which monitor the traffic Light Flow intelligently is introduced. This system caused a great revolution in the field of traffic monitoring in metropolitans.
Positioning of Wireless Local Area Networks
Payame Nour University (PNU)
September 2012
- Researcher: Mona Zamani Siahkali
- Supervisor: Ali Ghavami
- Abstract: The improvement of mobile devices for users, creation of vast telecommunication infrastructure for wireless communication, and expansion of satellite networks have made the creation of several positioning systems for mobile users, especially in open spaces possible. Unfortunately, many such systems do not perform well in closed environments, and different solutions should be presented for such environments. Due to the increasing need for the usage of such systems in closed environments, local wireless networks using the IEEE802.11B standard have had much progress and expansion. The ever-increasing need for such systems in closed environments has required the introduction of positioning techniques for closed environments. One such technique, which has attracted much attention due to its unique attributes and has much application now, is local fingerprinting, in which radio signals play a significant role. Among radio signal parameters, the power of the received signal is most important, as measuring signal power is part of the operational method of wireless equipment, especially Wi-Fi. To implement this technique, first, the specified parameter, which is usually defined as a matrix network, is measured in regular and pre-specified situations. This combination is called a radio map. Different algorithms are proposed for the estimation of the relationship between defined locations, and the parameter of the measured signal based on the radio map.
This study aims to investigate a new algorithm for positioning based on this technique in an environment with local wireless network infrastructure using a radial circuit. Following the introduction of mobile commerce applications, the status of positioning, and the criteria influencing the pre-defined positioning will be studied. One such application is a mobile advertisement. Also, a special type of it, i.e. location-aware mobile advertising, shall be studied as a case study, and the general measures required for running this application in two states of “Push” and “Pull” will be presented.