Resource allocation with interference mitigation in OFDMA femtocells for co-channel deploymenta
نویسندگان
چکیده
منابع مشابه
Resource allocation with interference mitigation in OFDMA femtocells for co-channel deploymenta
Femtocells have been considered as a promising technology to provide better indoor coverage and spatial reuse gains. However, the co-channel deployment of macrocells and femtocells is still facing challenges arising from potentially severe inter-cell interference. In this article, we investigate the uplink resource allocation problem of femtocells in co-channel deployment with macrocells. We fi...
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Femto-cells deployment in today’s cellular networks came into practice to fulfill the increasing demand for data services. It also extends the coverage in the indoor areas. However, interference to other femto and macro-cells users remains an unresolved challenge. In this paper, we propose an interference mitigation scheme to control the cross-tier interference caused by femto-cells to the macr...
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In this report, proper frequency sub-band assignment and frequency guard band (GB) allocation is used to mitigate the effect of Multiple Access Interference (MAI), caused by synchronization offsets, in the uplink of OFDMA systems. This is done through formulation of an optimization problem, based on a solvable maximization of minimum user throughput. We can observe two main trade-offs. Firstly,...
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The introduction of femtocells enabled high data rates and better indoor coverage without the need for expanding or increasing the density of cellular networks deployment or upgrading the cellular network infrastructure. Despite this direct advantage, the introduction of femtocells challenges traditional interference mechanisms because of the ad hoc and dense nature of femtocell deployment. In ...
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ژورنال
عنوان ژورنال: EURASIP Journal on Wireless Communications and Networking
سال: 2012
ISSN: 1687-1499
DOI: 10.1186/1687-1499-2012-289