A femtocell power control scheme to mitigate interference using listening TDD frame

Choi, Bum-Gon; Cho, Eun Sam; Chung, Min Young; Cheon, Kyung-yul; Park, Aesoon

doi:10.1109/icoin.2011.5723186

Cited by 14 publications

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, some power adaptive schemes were developed to mitigate the interference . In previous studies, the authors proposed a cognitive radio approach to mitigate the cross‐tier interference.…”

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic downlink resource allocation and access strategy for femtocell networks

Jiang

Mao

Wang

2017

Trans. Emerging Tel. Tech.

View full text Add to dashboard Cite

Femtocells are small, low‐power cellular base stations with high potential for coverage extension and offloading voice and wireless data. In this paper, we study the problem of joint access control and spectrum resource allocation in a 2‐tier femtocell network with 1 macro base station and multiple Femto access points (FAPs). The objective is to maximize the overall network capacity, while guaranteeing the quality of service requirement of all user equipments. We develop an access scheme for macro user equipments and a spectrum allocation mechanism for the FAPs. Spectrum allocation is used as an incentive mechanism to encourage FAPs to serve more macro user equipments. We also derive an upper bound of the network‐wide capacity through a reformulation of the problem. The proposed algorithms are validated, and the upper bound is shown to be quite accurate in the simulation study.

show abstract

Section: Related Workmentioning

confidence: 99%

“…22 In addition, some power adaptive schemes were developed to mitigate the interference. [36][37][38][39][40] In previous studies, 14,41,42 the authors proposed a cognitive radio approach to mitigate the cross-tier interference. In 1 study, 43 full-duplex transmissions are incorporated in the FAPs for enhanced capacity.…”

Section: Related Workmentioning

confidence: 99%

Dynamic downlink resource allocation and access strategy for femtocell networks

Jiang

Mao

Wang

2017

Trans. Emerging Tel. Tech.

View full text Add to dashboard Cite

show abstract

“…In order to reduce the interference, [27] suggests a new time-division-duplex (TDD) frame structure called listening-TDD frame (LTDDF) for femtocells. In LTDDF femtocell has both downlink and uplink periods during downlink period of macrocell.…”

Section: ) Location Dependent Power Control Schemesmentioning

confidence: 99%

A Survey on Power Control Techniques in Femtocell Networks

Saad

Ismail²,

Nordin³

2013

JCM

View full text Add to dashboard Cite

Rapid increase in mobile data has raised the stakes on developing innovative new technologies and cellular topologies that can meet these demands in an energy efficient manner. One of the most interesting trends that will emerge from this cellular evolution is the femtocell networks. Femtocells are small, inexpensive, low power base stations that are generally consumer deployed, and are expected to significantly improve the coverage and capacity of the indoor users. Femtocell base stations (FBSs) have extensive auto configuration and self-optimization capability to enable simple plug-and-play deployment. The FBSs perform self-optimization function that continually adjusts the transmit power so the femtocell coverage does not leak into an outdoor area while sufficiently covering the indoor femtocell area. In this paper, different power control techniques in femtocell networks have been discussed and compared. The focus is on distributed power control techniques due to the decentralized nature of femtocell networks. The conclusion drawn from this review is that the distributed power control techniques using pilot power control schemes are simple and effective in optimizing the coverage of femtocells as well as reducing power consumption of the FBS. Furthermore a novel algorithm is still needed to perform power control optimization in femtocell networks.  Index Terms-heterogeneous networks, femtocell, power control Coverage range Up to 500m <100m <30m Backhaul X2 interface X2 interface Home broadband Access mode Open to all users Open to all users Closed subscriber group Deployment Outdoors Indoors or outdoors Indoors Installation By the operator By the operator By the user Cost Expensive Cheap Very cheap

show abstract

“…In orthogonal frequency-division multiple access (OFDMA) femtocell networks, there are two approaches to achieving channel frequency allocation: spectrum sharing and spectrum splitting [7]. According to [11][12][13], the interference between femtocells and macrocells can be mitigated by altering maximum power accordingly. In two-tier networks, the implementation of spectrum splitting has gained increasing popularity compared to spectrum splitting [8].…”

Section: Introductionmentioning

confidence: 99%

“…A series of power-control applications have been investigated to reduce the interference in two-tier networks. According to [11][12][13], the interference between femtocells and macrocells can be mitigated by altering maximum power accordingly. Game theory has also been proposed as a resource-allocation scheme to reduce the interference [4,14].…”

Section: Introductionmentioning

confidence: 99%

Discrete bacterial foraging optimization for resource allocation in macrocell-femtocell networks

2018

View full text Add to dashboard Cite

Femtocells are good examples of the ultimate networking technology, offering enhanced indoor coverage and higher data rate. However, the dense deployment of femto base stations (FBSs) and the exploitation of subcarrier reuse between macrocell base stations and FBSs result in significant co‐tier and cross‐tier interference, thus degrading system performance. Therefore, appropriate resource allocations are required to mitigate the interference. This paper proposes a discrete bacterial foraging optimization (DBFO) algorithm to find the optimal resource allocation in two‐tier networks. The simulation results showed that DBFO outperforms the random‐resource allocation and discrete particle swarm optimization (DPSO) considering the small number of steps taken by particles and bacteria.

show abstract

A femtocell power control scheme to mitigate interference using listening TDD frame

Cited by 14 publications

References 8 publications

Dynamic downlink resource allocation and access strategy for femtocell networks

Dynamic downlink resource allocation and access strategy for femtocell networks

A Survey on Power Control Techniques in Femtocell Networks

Discrete bacterial foraging optimization for resource allocation in macrocell-femtocell networks

Contact Info

Product

Resources

About