Learn More
This paper analyzes signaling traffic generated by IP Multimedia Subsystem (IMS) when deployed within a hybrid WLAN IEEE 802.11 and CDMA2000 networks to provide wireless and broadband services to users. IMS provides a services infrastructure to 3G networks and beyond and delivers the capability to maintain sessions among calling parties. IMS is under(More)
In this paper, we propose a channel-assignment algorithm at the Access Points (APs) of a wireless local area network (WLAN) in order to maximize signal-to-interference ratio (SIR) at the user level. We start with the channel assignment at the APs, which is based on minimizing the total interference between APs. Based on this initial assignment, we calculate(More)
— Different wavelength assignment schemes have been proposed in the literature for improving the blocking performance in optical networks. In this paper we analyze first fit and random wavelength assignment techniques. In the first fit case, the destination node selects the least indexed wavelength from the set of available wavelengths, whereas in random(More)
BACKGROUND An evaluation of progress with participatory approaches for improvement of health knowledge and health experiences of disadvantaged people in eight Districts of Eastern Nepal has been undertaken. METHODS A random selection of Village Development Committees and households, within the eight Districts where participation and a Rights-based(More)
This paper proposes a transceiver system for automatic tracking and dynamic routing for free space optical (FSO) communication. The proposed transceiver architecture has M transmitters and M receivers in a M × M configuration that can dynamically orient themselves at different angles to establish a link between two transceivers. A request to setup a(More)
This paper evaluates the performance of free space optical communication using tracking transceivers. The call request is blocked if free bandwidth is not available in a node along the route. The paper proposes a different topology formation based on the traffic pattern to minimize the blocking performance for limited number of tracking transceivers.