Nowadays, the usage of smart phones is very popular. More and more people access the Internet with their smart phones. This demands higher data rates from the mobile network operators. Every year the number of users and the amount of information is increasing dramatically. The wireless technology should ensure high data rates to be able to compete with the wire-based technology. The main advantage of the wireless system is the ability for user to be mobile. The 4G LTE system made it possible to gain very high peak data rates.The purpose of this paper was to investigate the improvement of the system performance for the downlink based on different antenna configurations and different scheduling algorithms. Moreover, the fairness between the users using different schedulers has been analyzed and evaluated.

This paper describes the comfortable smart room control system. The system consists of room security, lighting control and appliances control. These individual sections can be controlled by simple 3×4 keypad. The proposed system is developed by PIC16F84A microcontroller. Assembly programming language is used to program the microcontroller and Proteus Design Suite 8.0 is used to simulate the design.

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