A digital look-up table adaptive predistortion technique using a six-port receiver for power amplifier linearization is presented. The system is designed in Ka-band for a DVB-S2 satellite link. We use a six-port receiver at the linearizationloop in place of classic heterodyne receivers. The six-port receiver is implemented by the use of passive microwavecircuits and detector diodes. This approa...

Evaluating performances over real data links or network is often costly, even impossible for systems in development phase. In such situation, emulation is the key to provide a low cost and demonstrative platform. The main problem is to overcome the emulation weakness which is the accuracy of the model reproducing the systems to be evaluated. Owing to its modular design and implementation, the P...

recently many studies have been done on different issues of using multiple antennas at transmit and receive sides of a radar system in a mimo (multiple input multiple output) configuration. in addition, for the electronic warfare‟s purposes, the utilization of available signals of the environment to detect the targets has gained considerable attention in recent years. such passive radars use th...

The standardization of a Return Channel via Satellite (DVB-RCS) and satellite community efforts in term of interoperability over the last few years lead to quite a positive outcome: Geostationary satellite networks are intended to provide broadband access to interactive multimedia services in low infrastructure areas. However, in order to take in account real-time multimedia traffic, an efficie...

This work was funded by IST project ANTIUM. Abstract This paper deals with the synchronization of a multi-antenna receiver for terrestrial digital video broadcasting (DVB-T) in the presence of strong co-channel interference. Two algorithms are proposed which exploit different features of the DVB-T signal. Both algorithms take advantage from the spatial diversity provided by the antenna array. T...

In this paper, we will understand that the development of the Digital Video Broadcasting to a Handheld (DVB-H) standard makes it possible to deliver live broadcast television to a mobile handheld device. Building upon the strengths of the Digital Video Broadcasting Terrestrial (DVB-T) standard in use in millions of homes, DVB-H recognizes the trend towards the personal consumption of media.

The handover function is a key enabler for seamless mobility and service continuity among a variety of mobile/wireless access technologies supporting IP connectivity. The paper focuses on the key research challenges regarding inter-system handover operations among various radio cooperative networking environments (3G, WLAN, WiMAX and DVB) that are going to formulate future/near future business ...

The wireless billboard channels (WBCs) are integral part of the ubiquitous consumer wireless world (UCWW) a wireless next generation network proposal. The WBCs are used by the service providers to broadcast advertisements of their (wireless) services to the mobile terminals so that the mobile users may discover and associate with the “best” services following the user-driven ‘always best connec...

DVB-SH is the name of a mobile broadcast standard designed to deliver video, audio and data services to small handheld devices such as mobile telephones, and to vehicle-mounted devices. The key feature of DVB-SH is the fact that it is a hybrid satellite/terrestrial system that will allow the use of a satellite to achieve coverage of large regions or even a whole country. In areas where direct r...