منابع مشابه
European Cooperation
3GPP LTE is the evolution of the UMTS which will make possible to deliver next generation high quality multimedia services according to the users’ expectations. Since Radio Resource Management (RRM) has been recognized as a key point to successfully accomplish this target, the performance evaluation of a multi-cell resource allocation scheme applied to LTE downlink (DL) is presented in this pap...
متن کاملEuropean Cooperation
This paper presents effect of delay waves on MIMO over-the-air (OTA) throughput of a handset MIMO array using a spatial fading emulator. The emulator has a number of antenna probes located on a circle around a handset under test to representing a multipath radio environment applicable to the OTA evaluation for a handset MIMO antenna. The MIMO OTA tests with and without delay waves, which have a...
متن کاملEuropean Cooperation
This paper proposes and evaluates a WSN based system for target tracking in small areas. The system can be applied in surveillance, rural or industry monitoring, where a particular zone, for instance, surroundings of an entrance should be controlled. The system is able to store the target movement patterns and it allows for their identification using video sensors connected to strategically dep...
متن کاملEuropean Cooperation
The ever increasing demand for multimedia wireless communications systems is a key feature of more advanced markets. The buzzword of personal communications, meant to provide “access to anyone, anywhere, at anytime” to the wanted service implies that spectrum demands are dramatically increasing in most developed markets. To cope with these needs, many countries are going to re-use traditional b...
متن کاملEuropean Cooperation in the Field of Scientific
It has been shown that the concept of "keyholes" in MIMO channels could be responsible for a reduced transmit/receive diversity performance, and therefore a reduction of capacity with respect the maximum available radio link capacity. In the present work, we further analyse this effect in terms of coupling between an input wave impinging on the keyhole, and several output waves due to diffracti...
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ژورنال
عنوان ژورنال: Advanced Materials
سال: 1990
ISSN: 0935-9648,1521-4095
DOI: 10.1002/adma.19900020502