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Downlink performanc...
Downlink performance and capacity of distributed antenna systems based on realistic channel model
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- Seifi, Nima, 1981 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Wolfgang, Andreas, 1977 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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Ottosson Gadd, Tony, 1969 (författare)
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(creator_code:org_t)
- 2008
- 2008
- Engelska.
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Ingår i: WSA 2008. International ITG Workshop on Smart Antennas, Damstdart, Germany. ; , s. 249-253
- Relaterad länk:
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https://research.cha...
Abstract
Ämnesord
Stäng
- Recent academic studies of distributed antenna system (DAS) using a frequency-flat fading channel model show that DAS outperforms standard systems, where the base-station (BS) antenna elements are centralized at one location. In this paper the performance of a DAS under time-varying frequency-selective fading based on a realistic channel model is investigated. Specifically, we show that if we shift the hexagonal cellular layout in the conventional system and use sectorized antennas instead of omnidirectional antennas at each BS, the performance in terms of outage probability and outage capacity will improve by a large extent without a need for additional BS towers. The results show that with the same total transmit power and bandwidth DAS can reduce the inter-cell interference (ICI) in a multicell environment and improve the outage capacity especially near the cell boundary.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- hexagonal cellular layout
- multice
- time-varying channelsBS towers
- probability
- directive antennas
- distributed antenna systems
- base-station antenna elements
- intercell interference
- fading channels
- frequency-flat fading channel model
- cellular radio
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)