An Ad-hoc network or Independent Basic Service Set (IBSS) is a simple network where communications are established between two or more wireless nodes or Stations ( STAs) in a given coverage area without the use of an Access Point (AP) or server. The STAs recognize each other and communicate directly with each other on a peer-to-peer level. | HOGESCHOOLVOOR WET SCHAP KUNST DE NAYER INSTITUUT SIMT-K ATE LI J ME-WAVER Jan De Nayerlaan 5 B-2860 Sint-Katelijne-Waver Belgium Spread Spectrum SS applications ir. J. Meel jme@ Studiedag Spread Spectrum 6 okt. 99 In the period of nov. 1997 - nov. 1999 a Spread Spectrum project was worked out at the polytechnic DE NAYER instituut . The goal of this project was the hardware software implementation of a Direct Sequence Spread Spectrum CDMA demonstrator in the GHz ISM band. A measurement environment Vector Signal Analyzer IQ-modulator Bit Error Rate Tester was build out resulting in a set of experiments based on this demonstrator. The project results where communicated with SMO s Small and Medium Organisations interested in Spread Spectrum. These notes were used to introduce the SMO s in the subject of Spread Spread Spectrum project was sponsered by Bl Vlaams Instituut voor de bevordering van het Wetenschappelijk Technologisch onderzoek in de industrie - Flemisch Gouvernment iiriuj Sirius Communications - Rotselaar - Belgium V2 dec 99 CONTENTS u co w 1. SPREAD SPECTRUM WLAN IEEE . Network Topology. Physical Layer Radio Technology GPS Global Positioning System .7 Network Forward Link Radio DE NAYER ir. J. Meel IWT HOBU-fonds Spread Spectrum 2 1. Spread Spectrum Applications WLAN IEEE IEEE is the first internationally recognized standard for Wireless Local Area Networks WLAN introducing the technology of mobile computing. Network Topology Ad-hoc Network An Ad-hoc network or Independent Basic Service Set IBSS is a simple network where communications are established between two or more wireless nodes or Stations STAs in a given coverage area without the use of an Access Point AP or server. The STAs recognize each other and communicate directly with each other on a peer-to-peer level. STA2