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Power Allocation in...
Power Allocation in HARQ-based Predictor Antenna Systems
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- Guo, Hao, 1992 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Makki, Behrooz, 1980 (författare)
- Telefonaktiebolaget L M Ericsson,Ericsson,Chalmers tekniska högskola,Chalmers University of Technology
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- Alouini, Mohamed-Slim (författare)
- King Abdullah University of Science and Technology (KAUST)
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- Svensson, Tommy, 1970 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2020
- 2020
- Engelska.
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Ingår i: IEEE Wireless Communications Letters. - 2162-2345 .- 2162-2337. ; 9:12, s. 2025-2029
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://research.cha...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this work, we study the performance of predictor antenna (PA) systems using hybrid automatic repeat request (HARQ). Here, the PA system is referred to as a system with two sets of antennas on the roof of a vehicle. In this setup, the PA positioned in the front of the vehicle can be used to predict the channel state information at the transmitter (CSIT) for the receive antenna (RA) that is aligned behind the PA. Considering spatial mismatch due to mobility, we derive closed-form expressions for the optimal power allocation and the minimum average power of PA systems under different outage probability constraints. The results are presented for different types of HARQ protocols and we study the effect of different parameters on the performance of PA systems. As we show, our proposed approximation scheme enables us to analyze PA systems with high accuracy. Moreover, for different vehicle speeds, we show that HARQ-based feedback can reduce the outage-limited power consumption of PA systems by orders of magnitude.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Channel state information
- power allocation
- predictor antenna
- outage probability
- moving backhaul
- mobile relay
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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