Implementation of an SDH simulator using SDR

[摘要] A Synchronous Digital Hierarchy (SDH) point-to-point bi-directional link was implemented at a base SynchronousTransfer Mode level 1 (STM 1) signal rate. The full STM-1 multiplexer was implemented and the functional codedeveloped to Virtual Container level 4 (VC4) level. The implementation was realized using a Software Defined Radio(SDR) architecture that managed and linked the SDH atomic units into a STM-1 SDH multiplexing structure. Theseatomic units have been well defined in recommendation G.707 [1].The functional description of each unit was based on the G.783 [8] recommendation which specifies a library of basicbuilding blocks and set of rules by which these atomic functions should be combined into various functional layers.These layers interconnect to ultimately form a bi-directional path in the SDH network.A SDH Management Sub network (SMS) was implemented using a graphical user interface to perform a monitoringfunction for the bi-directional link.

[发布机构] Stellenbosch University