Open issues on TCP for mobile computing

Open issues on TCP for mobile computing

We discuss the design principles of TCP within the context of heterogeneous wired/wireless networks and mobile networking. We identify three shortcomings in TCP’s behavior: (i) the protocol’s error detection mechanism, which does not distinguish different types of errors and thus does not suffice for heterogeneous wired/wireless environments, (ii) the error recovery, which is not responsive to ...

Improving TCP Performance in Mobile Computing Environments

In this paper we examine several aspects of performance and connection management during handoffs and interface switching in mobile computing environments. We demonstrate the insufficiency of network layer mobility protocols to preserve highperformance operation of reliable transport protocols such as TCP under certain circumstances. We also introduce a mobility-aware transport, Mobile TCP, tha...

Mobile Computing: Data Management Issues

Systems Issues in Mobile Computing

The decreasing size of computer components and the increasing availability of wireless communication technology make possible ubiquitous mobile computing: access from anywhere , at any time, to computer networks and the rich set of services attached to them. Mobile computers provide a powerful interface to services that allow a mobile user to access diverse sources of information, exchange elec...

Issues in Wireless Mobile Computing

Workstation-class computers have lately become small enough to carry, and portable computers have become by far the fastest growing segment of the computer industry. In addition, there is much activity in 1 the telecommunications industry aimed at providing wireless data networks which would lie at the fringes of a universal infrastructure of high speed WANs and LANs, providing the ‘‘last link’...