User population mobility based analysis of cellular networks | |
| Author | Cassim, Mohamed Shahalan |
| Call Number | AIT Thesis no.ICT-07-16 |
| Subject(s) | Mobile communication systems Cellular telephone systems |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Information and Communications Technologies, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ICT-07-16 |
| Abstract | Mobility characteristics of subscribers (speed and direction of movement) bear direct effect on performance of cellular networks. In many mobility models, one can see cases of simplifying assumptions that diminish practical relevance of models. The challenge in developing a good mobility model for cellular networks will have to be attempted on the need to have simplicity yet ability to be well fitted with field data, producing a tractable system. Hence the drawback lies in models which cannot relate to operator identifiable parameters used in network analysis or have a network wide application scope (some models are simply cell level analyses). In this thesis, previous works are studied with their relative merits and demerits, and, a new mobility model based on quantifiable network parameters is proposed. The main purpose of this is to ensure parameters to define user mobility are conveniently obtainable by operators. This thesis relies on parameters of cell capacities, initial population distributions and fixed parameters related to subscriber movement that are obtainable by analyzing previous data. This mobility model is used to analyze user population distribution over a period of time in a selfcontained network, and, it is then extended to account for the load that the cells receive due to this user distribution. Then this model is simulated over a hypothetical network to analyze user behavior. This model renders possible the analysis of user distributions and network loads at steady state as a time continuous function. The results obtained show that within a time duration where model parameters remain stable, the cell populations reach asymptotic stability and during this time, the load offered to networks follow subscriber calling patterns. Finally, a critical analysis on the results is made with special emphasis on applicability scope and considerations for interpretation of results |
| Year | 2007 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ICT-07-16 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Information and Communication Technology (ICT) |
| Chairperson(s) | Erke, Tapio J; |
| Examination Committee(s) | Ahmed, Kazi M;Rajatheva, R. M.A. P; |
| Scholarship Donor(s) | Finland;Asian Institute of Technology Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |