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Coverage probability analysis of three uplink power control schemes: Stochastic geometry approach
- Source :
- EURASIP Journal on Wireless Communications and Networking, Vol 2018, Iss 1, Pp 1-14 (2018), Eurasip Journal on Wireless Communications and Networking
- Publication Year :
- 2017
-
Abstract
- In cellular networks, each mobile station adjusts its power level under control of its base station, i.e., through uplink transmit power control, which is essential to reach desired signal-to-interference-plus-noise ratio (SINR) at the base station and to limit inter-cell interference. The optimal levels of transmit power in a network depend on path loss, shadowing, and multipath fading, as well as the network configuration. However, since path loss is distance dependent and the cell association distances are correlated due to the cell association policies, the performance analysis of the uplink transmit power control is very complicated. Consequently, the impact of a specific power control algorithm on network performance is hard to quantify. In this paper, we analyze three uplink transmit power control schemes. We assume the standard power-law path loss and composite Rayleigh-lognormal fading. Using stochastic geometry tools, we derive the cumulative distribution function and the probability density function of the uplink transmit power and the resulting network coverage probability. It is shown that the coverage is highly dependent on the severity of shadowing, the power control scheme, and its parameters, but invariant of the density of deployment of base stations when the shadowing is mild and power control is fractional. At low SINRs, compensation of both path loss and shadowing improves the coverage. However, at high SINRs, compensating for path loss only improves coverage. Increase in the severity of shadowing significantly reduces the coverage.
- Subjects :
- Computer Networks and Communications
Computer science
lcsh:TK7800-8360
02 engineering and technology
Data_CODINGANDINFORMATIONTHEORY
Interference (wave propagation)
Coverage probability
lcsh:Telecommunication
Base station
0203 mechanical engineering
Control theory
Mobile station
lcsh:TK5101-6720
Telecommunications link
0202 electrical engineering, electronic engineering, information engineering
Computer Science::Networking and Internet Architecture
Path loss
Fading
Computer Science::Information Theory
Research
ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS
lcsh:Electronics
Cellular networks
020206 networking & telecommunications
Transmitter power output
Computer Science Applications
Fractional power control
020303 mechanical engineering & transports
Signal Processing
Cellular network
Stochastic geometry layout
Multipath propagation
Uplink
Power control
Subjects
Details
- ISSN :
- 16871472
- Volume :
- 2018
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- EURASIP journal on wireless communications and networking
- Accession number :
- edsair.doi.dedup.....f546ee1fa79892d8802039523848418d