| Author | Songpon Ruammai |
| Call Number | AIT RSPR no.TC-97-11 |
| Subject(s) | Synchronous digital hierarchy (Data transmission)
|
| Note | A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies |
| Publisher | Asian Institute of Technology |
| Series Statement | Research studies project report ; no. TC-97-11 |
| Abstract | This paper considers the error performance of Synchronous Digital Hierachry (SDH) in
three different network topologies: ring, star, and chain. The network configurations and
measurements are done using the SDH equipment and SYNFONET software provided by
NOKIA The error performance parameters, which are in terms of Errored Second Ratio
(ESR), Severely Errored Second Ratio (SESR), Background Block Error Ratio (BBER) and
UnAvailable errored Second Ratio (UASR), can be measured in the Regenerator Section (RS)
and Multiplexer Section (MS) levels while the SDH network gives service. These parameters
measure the errors for different distances between node A and node B. The distance is
simulated by using an optical attenuator. For error detection, the block length concept and the
Bit Interleaved Parity (BIP) is used.
The results of the error performance objectives for different SDH network topologies
are concluded in Table 5 .1. This research study proposes the error detection method by using
the error performance parameters measured in different network topologies and different
attenuated signals. Furthermore, this paper refers to the extended idea of the computation link
budget which considers the error performance parameters and distance of SDH network links
in practical. |
| Year | 1997 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. TC-97-11 |
| Type | Research Study Project Report (RSPR) |
| School | School of Advanced Technologies (SAT) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Telecommunications (TC) |
| Chairperson(s) | Sharma, A. B. |
| Examination Committee(s) | Lehtimaki, Seppo;Rajatheva, Premanandana |
| Scholarship Donor(s) | Telephone Organization of Thailand (TOT) |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 1997 |