Frequency Reuse Optimization for OFDMA Network
نویسندگان
چکیده
منابع مشابه
Dynamic Fractional Frequency Reuse in OFDMA systems
While OFDMA orthogonalizes users within a cell, out-of-cell interference avoidance is a primary concern in the practical implementation of OFDMA systems. This project explores one of the key ideas towards limiting the harmful effects of out-of-cell interference: fractional frequency reuse (FFR) (1). We first explore the idea of frequency reuse and introduce FFR. Then, we discuss the algorithm f...
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Orthogonal frequency division multiple access (OFDMA) is a promising technique for high data rate communications in future cellular systems. Since frequency resources are universally reused in every cell in a system, a typical OFDMA system tries to maximize the spectral efficiency. Users located near the cell-edge tend to have the weakest signal strength. So they might experience severe inter-c...
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Femtocells are expected to be one of the emerging technologies for next generation communication systems. For successful deployment of femtocells in the pre-existing macrocell networks, there are some challenges such as the cell planning for interference management, handoff, and power control. In this paper, we focus on frequency planning which can provide interference avoidance for the co-exis...
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The co-channel cell interference (CCI) becomes the major performance degradation factor for multi-cell OFDMA systems. In this paper, we propose two fractional frequency reuse (FFR) schemes that can efficiently avoid the CCI in the cell edge: scheme I where each cell is divided into two regions: the central region and the edge region. In the central region, the frequency reuse is set to 1. In th...
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ژورنال
عنوان ژورنال: Journal of Engineering and Applied Sciences
سال: 2019
ISSN: 1816-949X
DOI: 10.36478/jeasci.2019.1219.1225