Basic Computer Science

The Dynamic Source Routing protocol (DSR) is a simple and efficient routing protocol designed specifically for use in multi-hop wireless ad hoc networks of mobile nodes.   DSR allows the network to…

DSDV was one of the first proactive routing protocols available for Ad Hoc networks. It was developed by C. Perkins in 1994, 5 years before the informational RFC of the…

ROUTING  Routing is the act of moving information across the network from a source to a destination. It is also referred as the process of choosing a path over which…

The dynamic host configuration protocol is mainly used to simplify the installation and maintenance of networked computers. If a new computer is connected to a network, DHCP can provide it…

While systems like GSM have been designed with mobility in mind, the internet started at a time when no one had thought of mobile computers. Today‘s internet lacks any mechanisms…

The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard. Developed and maintained by the 3GPP (3rd Generation Partnership Project),…

INTRODUCTION:  General packet radio service (GPRS) is a packet oriented mobile data service available to users of the 2G cellular communication systems, 3G systems and GSM. GPRS re-use the existing GSM infrastructure.…

 GSM offers several security services using confidential information stored in the AuC and in the individual SIM (which is plugged into an arbitrary MS). The SIM stores personal, secret data…

Mobility management is one of the major functions of a GSM or a UMTS network that allows mobile phones to work. The aim of mobility management is to track where…

A satellite system together with gateways and fixed terrestrial networks as shown in Figure 5.1 has to route data transmissions from one user to another as any other network does.…