A Novel Frequency Planning for Femtocells in OFDMA-Based Cellular Networks Using Fractional Frequency Reuse

Oh, Chang-Yeong; Chung, Min Young; Choo, Hyunseung; Lee, Tae-Jin

doi:10.1007/978-3-642-12179-1_10

Cited by 16 publications

(10 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this way, the subband partitioning provides, wherever the short-range link is located, frequency locations on which it can transmit where the interference will be minimal. This property is the basic observation of [12] and will serve as the basis of the proposed femto-macro interference control method here.…”

Section: Macrocell Subband Partitioningmentioning

confidence: 97%

“…It is well-known that such subband partitioning can often improve the rate distribution in the macrocellular network: usually the edge of cell mobile rate can be increased with a relatively small loss in rate for the good mobiles. However, what is important for this work is the observation of [12] that subband partitioning also creates improved opportunities for short-range transmissions with minimal interference into the macro network. To see this property, consider again Fig.…”

Section: Macrocell Subband Partitioningmentioning

confidence: 99%

“…In the method in [12], each femtocell transmitter (the femto BS in the DL and femto UE in the UL) is statically assigned to a single subband based on the DL SINR. In the proposed method of this paper, the femtocell transmitter can simultaneously use all subbands, with a power level in each subband based on the precise interference conditions.…”

Section: Subband Interference Power Controlmentioning

confidence: 99%

“…Following the observations of [12], the basic thesis of this paper is that subband partitioning can also create improved opportunities for femtocell communication as well. Specifically, we argue that, when the macrocell network employs subband partitioning, most femto links will be able to transmit in one or more subbands with minimal interference into the macro network.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Femto-macro cellular interference control with subband scheduling and interference cancelation

Rangan¹

2010

2010 IEEE Globecom Workshops

View full text Add to dashboard Cite

A significant technical challenge in deploying femtocells is controlling the interference from the underlay of femtos onto the overlay of macros. This paper presents a novel interference control method where the macrocell bandwidth is partitioned into subbands, and the short-range femtocell links adaptively allocate their power across the subbands based on a load-spillage power control method. The scheme can improve rate distribution in the macro network while also providing opportunities for short-range communication as well. Moreover, the proposed scheme requires minimal interference coordination communication between the femtos and macros, which is one of the main challenges in femtocell systems. Also, simulations show certain advantages over simpler orthogonalization schemes or power control schemes without subband partitioning. Further modest gains may also be possible with interference cancelation.

show abstract

Section: Macrocell Subband Partitioningmentioning

confidence: 97%

Section: Macrocell Subband Partitioningmentioning

confidence: 99%

Section: Subband Interference Power Controlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Femto-macro cellular interference control with subband scheduling and interference cancelation

Rangan¹

2010

2010 IEEE Globecom Workshops

View full text Add to dashboard Cite

show abstract

“…The scenario 1 design after the application of FFR method can be seen in Figure 3. 5 After the Matlab simulation obtained, the results are shown bellow in Fig.8 It can be seen in figure 9, a distance between MBS -FBS is 572.503 meters, distance between FBS -FUE is 33.8378 meters. And with the position as such in Figure 4.2, it can be obtained the distance between MBS -FUE is 541.288 meters.…”

Section: Fractional Frequency Reuse (Ffr) Designmentioning

confidence: 99%

Simulation and analysis of interference avoidance using fractional frequency reuse (FFR) method in LTE femtocell

Giovany

Usman

Prasetya

2013

2013 International Conference of Information and Communication Technology (ICoICT)

View full text Add to dashboard Cite

There for another way is needed to keep LTE reliable when use in indoor. Femtocell is the solution of the problem. But femtocell uses the same frequency spectrum as any other broadband services. The more femtocell used in an area, overall networks capacity will be disturbed by cochannel interference. There are two scenarios that were examined in this research experiment about femtocell LTE interference. That is between MBS -FUE and FBS -MUE. And then to both scenarios applied FFR method using 4 reuse frequencies, 1 frequency use in center cell and the other 3 is use in the edge cell, where the power transmit of the center cell is greater than edge cell. The using of FFR method is to decrease the interference. Parameter that being use to analyze is SINR value that observed from the user side. FFR algorithm simulated with Matlab 7.11.0 simulator to determine SINR value and to create Layout Position Model of FBS, MBS, and MUE/FUE. Simulation result shows that FFR method is able to increase SINR value in each scenarios. In Scenario 1 with random distance, where the distance between MBS -FBS is 572.503 meters, the distance between FBS -FUE is 33.8378 meters, and the distance between MBS -FUE is 541.288 meters. SINR value increased by 124.4194 dB, that is from 57.8716 dB to 182.291 dB. In scenario 2, where the distance between MBS -FBS is 604 meters, the distance between FBS -MUE is 37.5366 meters, and the distance between MBS -MUE is 641.291 meters. SINR value increased by 104.6943 dB, that is from 78.5277 dB to 183.222 dB. It shows the improvement of quality or the decrease of interference to both Macrocell User and Femtocell User after FFR method being applied.

show abstract

Bibliography

2012

Resource Allocation in Uplink OFDMA Wireless Systems

View full text Add to dashboard Cite

A Novel Frequency Planning for Femtocells in OFDMA-Based Cellular Networks Using Fractional Frequency Reuse

Cited by 16 publications

References 7 publications

Femto-macro cellular interference control with subband scheduling and interference cancelation

Femto-macro cellular interference control with subband scheduling and interference cancelation

Simulation and analysis of interference avoidance using fractional frequency reuse (FFR) method in LTE femtocell

Bibliography

Contact Info

Product

Resources

About