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In this work you will do simulations of different sizes of via and different combinations of unused pads of via, to gather enough data to find optimal via structures according to the impedance profile of the via, for a specific PCB stackup.

We at Abetong are now looking for our next trainees where we are seeking two ambitious candidates. You will be in a unique position to start your career together with other trainees in Heidelberg Cement Northern Europe and will participate in a tailor made program. During twelve months you will get a unique insight to HeidelbergCement Northern Europe, from the mining of limestone through production of cement and concrete to construction of building elements. From day one you will be assigned a position with specific working tasks. Your day to day work will be combined with an application of theory through trainings. You will be expected to take on own responsibility for projects and tasks.

We at Abetong are now looking for our next trainees where we are seeking two ambitious candidates. You will be in a unique position to start your career together with other trainees in Heidelberg Cement Northern Europe and will participate in a tailor made program. During twelve months you will get a unique insight to HeidelbergCement Northern Europe, from the mining of limestone through production of cement and concrete to construction of building elements. From day one you will be assigned a position with specific working tasks. Your day to day work will be combined with an application of theory through trainings. You will be expected to take on own responsibility for projects and tasks.

Ericsson is constantly evolving and challenging the status quo in software development. DURA R&D Operations is responsible for supporting that evolution, but without reliable measurements it is difficult to tell what is an improvement and what isn't. The purpose of this job is to propose key metrics for successful large scale software development at an early stage in the product lifecycle, and then to apply these metrics to a recently launched project as well as to a mature one.

Today operators are owning and operating several Radio Access Networks (RATs), for example, GSM, WCDMA (3G), LTE (4G), and WiFi. In order to meet the increasing traffic load there is a need to deploy base stations capable of higher capacity. Lately, operators have started to deploy LTE as well as WiFi in order to enhance user throughput and delay. At the same time energy consumption is becoming an increasing concern for the operators and one way to reduce cost is to disable WiFi nodes during low load conditions and let LTE cells to serve existing traffic. The inter-working between LTE and WiFi is very important to have seamless coverage and excellent user experience, but also to enable energy saving features. In order to understand performance of such mixed LTE and WiFi networks, there is a need of developing a simulator capable of modeling both these RATs. The goal of this project is to develop a simulator capable of modeling time-dynamic aspects in a mixed LTE-WiFi network, for example, mobility and inter-working between LTE and WiFi nodes.

Examensarbetet börjar med en litteraturstudie, där relevanta referenser inom signalbehandlingsområdet med undervattenstillämpningar studeras, med fokus på detektion av sälljud och liknande signaler. Här görs även en översikt över sälars undervattensljud och deras karaktäristika. Rapportskrivningen påbörjas redan i detta skede.