Abstract-Nowadays many applications use Wireless Sensor Networks (WSN) as their fulfill the purpose of collection of data from a particular phenomenon. Their data centric behavior as well as harsh restrictions on energy makes WSN different from many other networks known. During this work the energy management problem of WSN is studied, by using our proposed modified algorithm. It is a clustering algorithm, where nodes are organized in clusters and send their data to a shift selected cluster head. It will provide improvement on energy consumption in terms of member nodes, by making cluster heads static. LEACH already has a good energy saving strategy but our modification will provide an easier approach towards efficiency.

No abstract

Nowadays, wireless services are becoming increasingly present in our daily lives. UMTS technology is successfully implemented and is already installed everywhere. Wi-Fi service should be tested to coexist with UMTS service, with minimal interference. Hence in typical domestic environments is verified the possibility of coexistence of two antennas, in the same access space. Initially, the characteristic of Wi-Fi antennas parameters are measured. Then we measured the effect of positioning the two antennas in vicinity, in different configurations. Results of measurements show that the configuration of the access point can determine the pair of antennas that provides better appearance in terms of adaptation and topology of the installation.

Nowadays, wireless services are becoming increasingly present in our daily lives. UMTS technology is successfully imp lemented and is already installed everywhere. Wi-Fi service should be tested to coexist with UMTS service, with minimal interference. Hence in typical do mestic environments is verified the possibility of coexistence of two antennas, in the same access space. Initially, the characteristic of Wi-Fi antennas parameters are measured. Then we measured the effect of positioning the two antennas in vicinity, in different configurations. Results of measurements show that the configuration of the access point can determine the pair of antennas that provides better appearance in terms of adaptation and topology of the installation.

No abstract