The Pham Manh Lam creator O'Farrell, T. Chairperson Lochmann, S. Examination committee Murch, A. Examination committee Takahashi, K. Examination committee Finnish International Development Agency (FINIDA),Finland Scholarship donor text th Bangkok Asian Institute of Technology 1992 monographic eng

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91, [5] leaves The research presented in this thesis consists of the design and investigation into the performance of a novel hybrid CDMA/CSMA-CD protocol for applications in High Speed Integrated Services Local Area Networks (HSIS LANs). A class of DSSS protocols which have a true capacity improvement per unit bandwidth over conventional contention protocols, such as Ethernet, have been identified. CSSS/CD is used as a generic name describing this class of protocols with various forms of channel sensing and collision detection. The protocol procedures of Connection, Data Transfer and Disconnection (including full-duplex capabilities) for High Speed Integrated Services Local Area Networks (HSIS LANs) are specified. Computer simulation models which can be used to analyse and examine the behaviour of the CSSS/CD protocols under varying design and operating conditions are devised. These models are built up using OPNET/M version 2.3 which is a workstation-based network simulation tool conceived by MIL 3 Incorporation. Finally, the delay/throughput performance of the new lP-CSSS/CD protocols are evaluated and compared with 1 P-CSMA/CD (Ethernet) for identical channel conditions. The advantage of these protocols is that they may be realised by only a physical layer change to the standard Ethernet protocol while achieving a true capacity improvement over Ethernet for large offered loads and large data rates, thus making these protocols ideally suited to HSLN applications A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology,1992 Spread spectrum communications Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B17498 http://203.159.5.9/ait-thesis/detail.php?q=B17498 080598 20260818090214.0