Wireless compatibility with information systems Essay

Wireless compatibility with information systems - Essay ExampleOur subject devices whitethorn be GPRS/EDGE or 3G connected computers or alternately Wi-Fi connected smart phones. There be compatibility issues at the network, operating system, and application levels.There are compatibility issues at the network, operating system, and application levels (Intermec, Nortel). These issues are currently being addressed with the objective of achieving a convergent information network that transparently supports all applications using any(prenominal) terminal device.GSM wireless networks carried IP packets over GPRS (45 Kbps), and EDGE (180 Kbps). These protocols are modem based and are slower and less reliable than current digital data contagion technologies. Current versions of TCP assume a reliable high rate link and therefore its congestion control algorithms are tuned to handle traffic set congestion. Wireless links are slower and incur higher error rates. Several options related to f ast error recovery have resulted in the increment of Wireless Profiled TCP.UMTS, a GSM and CDMA successor, is a 3G technology whose development is carried through into 4G, relies on W-CDMA and supports up to 21 Mbps with HSDPA. Users can expect at best uplink rates of 284 Kbps and downlink of 7.2 Mbps. When IP is carried over UMTS, ATM is typically the link layer, with SS7 being the signaling protocol. The later has a different addressing scheme from IP, so two new protocols were developed to channel SS7 over IP. Real time and streaming oriented transport protocols are also being developed in replacement to TCP. It is unfair to even seek to treat all network issues involved in this short paper. An excellent and complete coverage of the subject is provided in (Bannister et Al., 2004). The practical conclusion is that there are many standards and operator related issues that would have to be resolved before one can think of actual convergence at the network level.On another hand, w ireless LAN (Wi-Fi) technology seems to be the more suited for short and medium term mobile application support since the wireless cut off involved has local significance and was designed to interwork with IP routers, just like an Ethernet port plugged into the router.1.2 Operating System compatibility There are as of nowadays far more mobile operating systems than there are stable PC ones Windows Mobile, Symbian, Googles Android, Blackberrys RIM, and Apples iPhone OS are the most known (Wikipedia.org). Operating systems impact the stylus the networks physical media is accessed (the air interface) and the way client applications communicate with servers (protocols). One can find disparate solutions being developed like enabling MS flip access from Windows Mobile or IBMs Lotus notes and Citrix access from Apples iPhone but there is long and intense way to go before assuming smooth client-server applications. This is a major hinder since portable wireless devices are intended to r un thin client applications and rely on servers for heavier processing and storage. Middleware is being developed to return between mobile systems and servers, such as Omni Technologys GroupWise caching client.1.3 ApplicationsThere are issues with the development and testing platforms used to design wireless applications, which have to be developed on a PC or workstation and