Clock synchronisation for UWB and DECT communication networks

摘要: Synchronisation deals with the distribution of time and/or frequency across a network nodes dispersed in an area, order to align their clocks respect frequency. It remains important requirement telecommunication networks, especially Time Division Duplexing (TDD) systems such as Ultra Wideband (UWB) and Digital Enhanced Cordless Telecommunications (DECT) systems. This thesis explores three different research areas related clock synchronisation communication networks; namely algorithm development implementation, managing Packet Delay Variation (PDV), coping failure master node. The first area proposes higher-layer meet specific requirements UWB that is based on European Computer Manufacturers Association (ECMA) standard. At up 480 Mbps data rate, attractive technology for multimedia streaming. Higher-layer needed facilitate synchronised playback at receivers prevent distortion, but no defined ECMA-368 In this developed network. Network simulations FPGA implementation are used show new satisfies next looks how PDV can be managed when Precision Protocol (PTP) implemented existing Ethernet Existing literature indicates performance filtering usually depends delay profile which it applied. samplemode filter proposed independent shape profile. Numerical sample-mode able match or out-perform sample minimum, mean, maximum filters, levels load. Finally, considers problem dealing failures PTP DECT audio application. describes redundancy techniques shows why they unsuitable Then alternate cluster technique along alternative BMCA suit application under consideration. leads reduction total recover from failure.