Rickard Stridh

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We investigate the use of congestion control and joint optimal downlink beamforming, power control, and access point allocation, in a multi-cell wireless communication system. The access points of the system employ smart antennas and single antennas are used at the terminals. The possibility to send messages to multiple terminals at the same frequency in(More)
Multiple transmitters and receivers can be used to provide high link capacity in future wireless systems. Herein analysis of real indoor environment Multiple-Input-MultipleOutput measurements on the 5.8 GHz band is performed. The possible increase in capacity, utilizing multiple transmit and receive elements is examined. The gain possible when using channel(More)
AbstructIn this paper, we investigate the use of joint optimal downlink heamfordng, power control and access point allocation, in a multicell SDMA system. Smart antennas are used at the access points and single antennas are used at the terminals. The possibility to send messages to multiple terminals on the same frequency in the same time slot is exploited.(More)
“hot” item, frequently debated in the wireless community these days, is whether there is such a thing as a “fourth generation” (4G) of wireless systems that is likely to appear after the successful deployment of the current third-generation (3G) systems, say five to ten years from now. This new generation of wireless systems is supposed to complement and(More)
Whereas the development of telecommunication equipment and services moves at a fast pace, infrastructure deployment, in contrast, is a slow and costly process, demanding a long-range strategic perspective in decision making. As a consequence, R&D efforts in this area are concerned with problems on a time horizon of 10 years or more. Studying the feasibility(More)
Multiple transmitters and receivers can be used to provide high link capacity in future wireless systems. Herein, an analysis of indoor environment MultipleInput-MultipleOutput measurements in the 5.8 GHz band is performed and the possible increase in capacity, utilizing multiple transmitters and receivers i s examined. The investigation shows that in the(More)
Telecommunication infrastructure deployment, in contrast to the rest of the communication area, is a slow and costly process, demanding a long-range strategic perspective in decision making. Determining key issues for strategic research in this area is thus very important. This paper describes detailed work to that aim, within the PCC project. The aim was(More)
Scenarios can be used as a tool for starting a research process within a group. When putting together a research group of people with different backgrounds, different competencies and different preconceived ideas, special attention has to be put on the problem of integration. Many different "tools" can be used to help merging the different approaches of the(More)