Smooth is better than sharp: a random mobility model for simulation of wireless networks
MSWIM '01 Proceedings of the 4th ACM international workshop on Modeling, analysis and simulation of wireless and mobile systems
WCDMA for UMTS: HSPA Evolution and LTE
WCDMA for UMTS: HSPA Evolution and LTE
An overview of the femtocell concept
Bell Labs Technical Journal - Next-Generation Wireline Access Networks
Deployment options for femtocells and their impact on existing macrocellular networks
Bell Labs Technical Journal - 4G Wireless Technologies
Applying FDTD to the coverage prediction of WiMAX femtocells
EURASIP Journal on Wireless Communications and Networking - Special issue on advances in propagation modelling for wireless systems
OFDMA femtocells: a roadmap on interference avoidance
IEEE Communications Magazine
Spectrum allocation in tiered cellular networks
IEEE Transactions on Communications
Femtocell coverage optimization using switched multi-element antennas
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Access control mechanisms for femtocells
IEEE Communications Magazine
Femtocells: Technologies and Deployment
Femtocells: Technologies and Deployment
Planning UMTS base station location: optimization models with power control and algorithms
IEEE Transactions on Wireless Communications
Performance evaluation of frequency planning schemes in OFDMA-based networks
IEEE Transactions on Wireless Communications - Part 1
Cognitive femtocell networks: an overlay architecture for localized dynamic spectrum access
IEEE Wireless Communications
Open vs. closed access femtocells in the uplink
IEEE Transactions on Wireless Communications
Mitigation of redundant handovers to femtocells by estimation of throughput gain
Mobile Information Systems
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There are two main access policies (open and closed) to Femtocell Access Points (FAPs), being closed access the customers favorite. However, closed access is the root cause of crosstier interference in cochannel deployments of two-tier networks (i.e., macrocells and femtocells). Further, the effect of this problem is remarkably serious in the downlink of outdoor users not subscribed to any femtocell. Open access has been considered as a potential solution to this problem. However, this increases signaling in the network due to the elevated number of HandOvers (HOs) that mobile users have to perform. Therefore, this paper proposes an interference avoidance technique based on the use of Intracell HandOvers (IHOs) in Orthogonal Frequency Division Multiple Access (OFDMA) femtocells. It is shown that a proper combination of IHO and power control techniques reduces the outage probability for nonsubscribers compared with that of closed and open access. In addition, the impact of several network parameters such as the femtocell penetration is also considered in the analysis.