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Content Provider | IET Digital Library |
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Author | Ramírez, Rodrigo A. Vaca Thompson, John S. Ramos, Víctor M. Ramos |
Abstract | In this study, the authors consider a low complexity resource allocation scheme for reducing the uplink cochannel interference (CCI). The goal is to obtain improvements in energy efficiency by controlling the level of CCI affecting vulnerable mobile stations (MSs). This is done with a combined scheduler and a two layer power allocation scheme, which is based on non-cooperative game theory. The authors approach forces users with good propagation conditions to reduce transmission power, to protect users experiencing high levels of interference. Thus, the MSs’ uplink throughputs are equalised under the max–min fairness optimisation criterion. The scheme they propose works with minimum channel knowledge, since only base-mobile channel path gains are required for the optimisation process. Furthermore, they show analytically and by simulation that the power reductions applied to users with good propagation conditions provide an increase in energy efficiency and fairness in the system. In addition, the simulation results show that their scheme provides a higher fairness index and a comparable system energy efficiency to a centralised signal interference noise ratio balancing scheme. |
Starting Page | 2015 |
Ending Page | 2025 |
Page Count | 11 |
ISSN | 17518628 |
Volume Number | 7 |
e-ISSN | 17518636 |
Issue Number | Issue 18, Dec (2013) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/7/18 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2013.0125 |
Journal | IET Communications |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Base-mobile Channel Path Gain Centralised Signal Interference Noise Ratio Balancing Scheme Cochannel Interference Electromagnetic Compatibility Energy Efficient Orthogonal Frequency Division Multiple Access Network Fair Efficient Orthogonal Frequency Division Multiple Access Network Frequency Division Multiple Access Game Theory Interference Max-min Fairness Optimisation Criterion Minimum Channel Knowledge Mobile Radio System Mobile Stations Multiple Access Communication Noncooperative Game Theory Noncooperative Uplink Interference Protection Framework OFDM Modulation Optimisation Optimisation Process Power Allocation Scheme Resource Allocation Transmission Power Reduction |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering Computer Science Applications |
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