Learn More
In WiMax networks the routing and the scheduling are tightly coupled. The routing and scheduling problem for WiMAX networks is different from 802.11 based mesh networks and can be designed and operated separately. Standard problems in wireless systems include Bandwidth allocation and Connection Admission Control (CAC). In this paper we design a joint(More)
Real-time local area networks like Fieldbus have to handle two types ofdata transfer, synchronous and asynchronous. The synchronous data is generated periodically and has to be transmitted before fixed deadlines. Asynchronous messages are generated by unforeseen events and thus cannot be predicted. The data transfer is handled in two different phases or(More)
In this paper we present a Simple Encoder for Fieldbus applications. The Simple Encoder is tailored to support the special kind of data transfer in a Fieldbus. The encoding rules have been simplified to such an extent that only required information between peers are exchanged, so that the coding/decoding process does not cause any significant delay during(More)
Roll-call polling mechanisms are considered for fieldbus networks. Based on a producer/consumer communication model, two different protocols are presented, namely the standardized FIP (Factory Instrumentation Protocol) and a modified FIP protocol that we propose here. The modified protocol uses redundancy to eliminate local timers used by the FIP protocol.(More)
A dual-processor system architecture and its application for real-time correlation are explained. This system uses two TMS320C25 digital signal processor (DSP) microprocessors and a dual-port common memory. System design details, theory of digital correlation, and software details are presented. Tables are given in which the performances and features of(More)
  • 1