Abstract
Using stochastic geometry, this letter studies the retransmission performance in uplink cellular networks with fractional path-loss inversion power control (FPC). We first show that the signal-to-interference-ratio (SIR) is correlated across time, which imposes temporal diversity loss in the retransmission performance. In particular, FPC with lower path-loss compensation factor decreases inter-cell interference but suffers from degraded retransmission diversity. On the other hand, full path-loss inversion achieves almost full temporal diversity (i.e., temporal SIR independence) at the expense of increased inter-cell interference. To this end, the results show that ramping-down the power upon transmission failure improves the overall coverage probability in interference-limited uplink networks.
Original language | English |
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Article number | 8470109 |
Pages (from-to) | 309-312 |
Number of pages | 4 |
Journal | IEEE Wireless Communications Letters |
Volume | 8 |
Issue number | 1 |
DOIs | |
State | Published - Feb 2019 |
Bibliographical note
Publisher Copyright:© 2012 IEEE.
Keywords
- Power ramping
- retransmission performance
- stochastic geometry
- uplink cellular networks
ASJC Scopus subject areas
- Control and Systems Engineering
- Electrical and Electronic Engineering