09-04-2012, 11:05 AM
Planning and implementation of Traffic Capacity Enhancement in mobile Networks
Traffic_Capacity_Enhancement.doc (Size: 23.5 KB / Downloads: 37)
The mobile usage at Trivandrum city is increasing exponentially for the past three years due to lower tariff and increase in teledensity. Therefore frequent call drop and non- availability of traffic channel is more common in mobile service provider’s networks. Enhancing the traffic capacity in GSM networks can solve the problem.
In our project the capacity enhancement is done in BSNL mobile network at a suitable area using additional RF carrier and ultimately by cell splitting. Our objective is to design and implement a spectrally efficient GSM network, taking into account receiver sensitivity, transmitted power level needed to determine allowable path loss, adequate coverage and minimum specified level of interference.
The planning and implementation of the project includes four different phases
1. Analysis of existing GSM network and infrastructure in Trivandrum.
2. Analysis of the Traffic data and related network parameters.
3. Study of Network planning using ATOLL s/w and Design parameters.
4. Planning for Increased GSM Traffic capacity enhancement.
5. Implementation of the Capacity enhancement techniques.
The traffic capacity enhancement is done by increasing the number of traffic channels by adding additional transceivers in the existing BTS in the GSM 900 MHz band and DCS 1800 MHz band. Further the traffic capacity can be enhanced by splitting the coverage area under a single BTS into micro cell / pico cell. The new site will be proposed to meet the high traffic demand under the area of consideration. Assessment of traffic demand in the proposed site will be done as per the report collected from Operation and Maintenance centre. The capacity and coverage analysis of the proposed new site will be performed by using the software-planning tool – Atoll. The coverage will be calculated by Link budget calculations and can be verified by using Atoll. Then the design parameters of the different micro cells and pico cells are defined and the network planning is done for the Trivandrum city. The micro cell and pico cells will be further implemented by BSNL subject to the techno–commercial feasibility. In short the project can be used to improve the quality of BSNL GSM network and it will result in the efficient spectrum utilization, higher call success rate, reduced traffic congestion and better overall voice quality.
This article discusses the development of a mobile bus-mounted machine vision system for transit and traffic monitoring in urban corridors, as required by intelligent transportation systems. In contrast to earlier machine vision technologies used for traffic management, which rely mainly on fixed-point detection and simpler algorithms to detect certain traffic characteristics, the new proposed approach makes use of a recent trend in com-puter vision research; namely, the active vision paradigm.Active vision systems have mechanisms that can actively control camera parameters such as orientation, focus,
zoom, and vergence in response to the requirements of the task and external stimuli. Mounting active vision systems on buses will have the advantage of providing real-time
feedback of the current traffic conditions, while possess- ing the intelligence and visual skills that allow them to interact with a rapidly changing dynamic environment, such as moving traffic and continuously changing image background.