Traffic priority analysis in a multi-channel one-turn crossbar ATM switch | |
| Author | Doloontumur, Oyun-Undraa |
| Call Number | AIT RSPR no. TC-03-17 |
| Subject(s) | Telecommunication -- Switching systems Telecommunication -- Traffic Asynchronous transfer mode Multichannel communication |
| Note | A research study submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Advanced Technologies |
| Publisher | Asian Institute of Technology |
| Series Statement | Research studies project report ; no. TC-03-17 |
| Abstract | The conventional ATM switch is a single-channel switch, where a virtual path is dedicated between specific input and specific output. The single-channel switch together with high-rate transmission technologies may have some disadvantages. Throughput in such switches can be severely limited by factors such as internal blocking, output competition and head of line blocking. One way to solve these problems of ATM switch is to use concept of channel group, such as in multi-channel switches. In this research, the multi-channel one-tum crossbar (MCOC) ATM switch has been studied for non-priority and priority cases. Offered traffics are assumed to be either homogenous or non-homogenous. Two types of priority cases have been investigated. Firstly, priority in order of group and secondly, one high priority channel group and other channel groups with equal priority. Also, each case is divided into three sub cases: equal capacity channel groups, unequal capacity channel groups, and channel groups with traffic proportional to group size. According to the simulation results, the cell loss probability decreases when greater buffer size is used for homogenous case. But there is negligible effect on cell loss probability in non-homogenous case when provided with greater buffer size. Here is noticeable impact of channel group capacity. Comparing three sub cases the best result is performed by traffic proportional to group size for non-priority and priority cases. In this case, cell loss probabilities of all channel groups are equally low. |
| Year | 2003 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. TC-03-17 |
| 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) | Erke, Tapio; |
| Examination Committee(s) | Ahmed, Kazi M. ;Teerapat Sanguankotchakom; |
| Scholarship Donor(s) | Government of Finland.; |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 2003 |