Wireless Networks and Pervasive Computing SLP Research Paper

Wireless Networks and Pervasive Computing SLP - Research Paper Example RMTP gives loss-less deliveries of bulk data. A cheap way of connecting applications for messaging but not always reliable, a business could use it as long as the applications are not mission critical and time delays are acceptable. Stated by Meital, et al (2003). 2. Transmission Control Protocol (TCP). The protocol is used on the transport layer of the OSI model. It is a reliable transport layer. Extract: When we say that TCP is "connection-oriented" we mean that there is a procedure that is followed for two communicating end points to exchange data. The TCP connection allows TCP to tailor each byte stream transfer, and maintain the state of that transfer, for each pair of communicating end points. Any given host might have many simultaneous TCP connections, each one having different characteristics, such as the segment size, the timeout (which will be explained), the window size (also to be explained), etc. A specific TCP connection is defined by a socket pair, where a socket is the IP address and port number on one of the communicating points, and the port number identifies the application process on that end point. The port number serves as part of the interface between TCP and the application layer, by identifying which process within a particular host a segment is associated with. As stated by Koren (2011). TCP helps businesses with their network connections, as it is very reliable normally, although it cannot take delays as can RMTP, it is an industry standard used by many businesses in their networks, its problems are known. A business should know a lot about its costs on staffing and equipment using this protocol. 3. User Datagram Protocol (UDP) uses as the underlying system, IP. It’s used for application to application messaging without too many protocol mechanisms involved; it is unreliable, as it does not use acknowledgements in the same way as TCP does. It does not order the messages or provide data flow control. UDP messages are