Spectral Efficiency Improvement of Fractional Frequency Reuse by Inter-Cell Interference Cancellation on Cooperative Base Station

2012 ◽  
Vol E95.B (6) ◽  
pp. 2164-2168 ◽  
Author(s):  
Kazuki MARUTA ◽  
Atsushi OHTA ◽  
Masataka IIZUKA ◽  
Takatoshi SUGIYAMA
Keyword(s):  
Spectral Efficiency ◽  
Interference Cancellation ◽  
Base Station ◽  
Frequency Reuse ◽  
Fractional Frequency Reuse ◽  
Efficiency Improvement ◽  
Fractional Frequency ◽  
Inter Cell Interference

Resource Allocation using Dynamic Fractional Frequency Reuse

2017 ◽  
Vol 6 (1) ◽  
pp. 34-44
Author(s):  
Anitha S Sastry ◽  
Akhila S
Keyword(s):  
Resource Allocation ◽  
Spectral Efficiency ◽  
Cellular System ◽  
Frequency Reuse ◽  
Base Stations ◽  
Cellular Structures ◽  
Fractional Frequency Reuse ◽  
Ofdma System ◽  
Fractional Frequency

This article describes how a multi user cellular system insists on having increase in the spectral efficiency for the number of users and base stations. As far as cellular structures are concerned, the users at the edges experience inter cellular interference (ICI) than the users at the cell center. This is due to lack of resource allocation at cell edges. To improve the throughput at the edges a technique called Fractional Frequency Reuse (FFR) is employed. This article explores the Dynamic FFR(DFFR) in OFDMA system to improve the overall throughput.

scholarly journals Hungarian Mechanism based Sectored FFR for Irregular Geometry Multicellular Networks

2021 ◽  
Vol 9 (2) ◽  
pp. 313-325
Author(s):  
Rahat Ullah ◽  
Zubair Khalid ◽  
Fargham Sandhu ◽  
Imran Khan
Keyword(s):  
Cellular Networks ◽  
Frequency Reuse ◽  
Fractional Frequency Reuse ◽  
Fractional Frequency ◽  
Achievable Throughput ◽  
User Simulation ◽  
Sum Rate ◽  
Irregular Geometry ◽  
The Individual ◽  
Inter Cell Interference

The growing demands for mobile broadband application services along with the scarcity of the spectrum have triggered the dense utilization of frequency resources in cellular networks. The capacity demands are coped accordingly, however at the detriment of added inter-cell interference (ICI). Fractional Frequency Reuse (FFR) is an effective ICI mitigation approach when adopted in realistic irregular geometry cellular networks. However, in the literature optimized spectrum resources for the individual users are not considered. In this paper Hungarian Mechanism based Sectored Fractional Frequency Reuse (HMS-FFR) scheme is proposed, where the sub-carriers present in the dynamically partitioned spectrum are optimally allocated to each user. Simulation results revealed that the proposed HMS-FFR scheme enhances the system performance in terms of achievable throughput, average sum rate, and achievable throughput with respect to load while considering full traffic.

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