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What is GPRS? Answer: GPRS (General Packet Radio Service) is the technology used by GSM Wireless carriers to transport data across their network. By breaking the data up into packets the network can transport the data at fast speeds and reliability. EDGE is an enhanced version of this technology which produces faster download speeds. UMTS (currently deployed in many major US Cities with AT&T) will display even faster speeds for Data transportation for both downloads and uploads utilizing the HSDPA technology.
TCP is originally designed for data transfers across wired, fixed networks [4]. It anticipates transmission problems that are typical with wired networks behaviors. With the implementation of GPRS, TCP traverses the wireless mobile network which is a different environment from the wired network.CP performance is seen to be constant in all scenarios and it can cope with GPRS mobility and bad radio condition, although at the expense of reduced throughput. Keywords: GPRS, TCP, Performance, Link Adaptation, Coding Scheme, Network Scenarios.