The main aim of this diploma thesis is a detailed analysis of the whole process of in-house public procurement in general and also an in-depth analysis of both its forms - vertical cooperation and utilities in-house model. Information used for the topic of this diploma thesis was obtained mainly from the legal regulation of the Czech Republic and also the EU regulation, the expert publications and articles dealing with the legal regulation of public procurement and the in-house procurement itself, internet sources and the case law of the Court of Justice of the European Union and of the Office for the Protection of Competition. To complete this diploma thesis descriptive analytic approach was used as well as a linguistic, comparative and teleological methods of interpretation. This diploma thesis is divided into four main chapters, while the short opening chapter contains a description of the general meaning and definition of both forms of in- house procurement. The first main chapter examines the beginnings and development of the in-house procurement in European Union law and in relevant case law of the Court of Justice of the European Union. The second chapter is focused on the conditions of the in-house procurement regulated in the legislation of the Czech Republic, while analyzing the quality...

Cognitive radio technology provides a solution for the spectrum scarcity issue by allowing the unlicensed users which are the cognitive radio devices to share the licensed band with the licensed (primary) users. The abilities of cognitive radio device help the secondary (unlicensed) nodes to observe the licensed band and to adjust their transmission parameters for maintaining the primary communication since in cognitive radio networks, it is essential that the existence of the unlicensed users must not harm the licensed network. Under these circumstances, we consider vertical cooperative transmission where primary transmission is not severely damaged by the secondary interference since each primary pair (transmitter and receiver) selects a neighbor secondary user as a cooperative relay to assist their transmission. Cooperation provides an increase in the signal-tointerference-ratio (SIR) of the primary network which can be harnessed by the secondary network as an additional bandwidth for their communication. We propose three relay selection rules so the influence of the relay’s position over the temporal and spatial correlations can be evaluated for different network conditions. Additionally, we implement primary exclusive region (PER) for each primary pair in the network which covers primary nodes, and all secondary users locate inside the zone become inactive. According to the outage model proposed in paper [2], temporal and spatial correlations are assumed to be 1 and 0 respectively; however it is estimated that regarding the environmental factors and the relay’s location, these correlation values may vary. This thesis work is based on the validation of the assumptions provided in paper [2] and our results demonstrate that the temporal and spatial correlation values changes under different circumstances and with different relay selection rules. The simulation results also show that PER significantly stimulates the cooperation performance thereby increases the transmission quality of the primary network.

The aim of this study is to provide a comprehensive analysis of the applicability of the exceptions of vertical (in-house) and horizontal cooperation among contracting authorities within the framework of public procurement law. For this purpose is in the thesis used descriptively analytic approach, which included the valid legislation of public procurement Czech Republic, as well as the relevant directives of European Union, although the focus of the thesis was based on the jurisprudence of the Court of Justice of the European Union. The thesis is structured into five chapters. The first chapter discusses the legislative framework of the European Union and the Czech Republic. The second chapter focuses on the basic principles of public procurement law. The third chapter deals with basic concepts and terminology of public procurement law.. The fourth chapter is divided into two major parts. The first part focuses on various factors related to the use of the exemption of vertical cooperation between contracting authorities (participation of private capital in the person of the supplier and contracting authority; the fulfillment of the control criterion and activity criterion; various forms of this exception). The second part is concentrated on the use of exception of horizontal cooperation between contracting...