NDLI: Distributed power control with active cell protection in future cellular systems

Content Provider	IEEE Xplore Digital Library
Author	Zhe Ren Jager, M. Stanczak, S. Fertl, P.
Copyright Year	2015
Description	Author affiliation: BMW Group Res. & Technol., Munich, Germany (Zhe Ren; Fertl, P.) \|\| Fraunhofer Inst. for Telecommun. Heinrich Hertz Inst., Berlin, Germany (Stanczak, S.) \|\| Munich Univ. of Technol., Munich, Germany (Jager, M.)
Abstract	Distributed power control schemes have been intensively studied in the literature for uplink transmissions in cellular networks as well as in ad hoc networks. In the schemes with active link protection, the signal to interference plus noise (SINR) requirements of the new users are gradually approached without violating the existing links. In this paper, we consider a downlink cellular scenario, in which new nomadic cells seek admission to the network. A distributed power control algorithm with active cell protection is presented, where a cell is said to be active if it has sufficient resources to support the connected users and, otherwise, it is said to be inactive. With the proposed algorithm, inactive cells lower their loads by gradually performing power ramping, while active cells scale their transmission power accordingly, to avoid being overloaded. We prove the active cell protection property and compare the convergence of the algorithm under different interference assumptions. Further, we present an algorithm for adapting the power ramping factor in power limited scenarios for further performance enhancements.
Starting Page	3352
Ending Page	3357
File Size	375909
Page Count	6
File Format	PDF
e-ISBN	9781467364324
DOI	10.1109/ICC.2015.7248842
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference Load modeling Heuristic algorithms Power control Noise Convergence Relays
Content Type	Text
Resource Type	Article

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