Computer Science – Information Theory
Scientific paper
2011-12-03
Computer Science
Information Theory
23 pages, 6 figures, submitted: Transactions on Wireless Communications, July 20, 2011
Scientific paper
Interference management techniques are critical to the performance of heterogeneous cellular networks, which will have dense and overlapping coverage areas, and experience high levels of interference. Fractional frequency reuse (FFR) is an attractive interference management technique due to its low complexity and overhead, and significant coverage improvement for low-percentile (cell-edge) users. Instead of relying on system simulations based on deterministic access point locations, this paper instead proposes an analytical model for evaluating Strict FFR and Soft Frequency Reuse (SFR) deployments based on the spatial Poisson point process. Our results both capture the non-uniformity of heterogeneous deployments and produce tractable expressions which can be used for system design with Strict FFR and SFR. We observe that the use of Strict FFR bands reserved for the users of each tier with the lowest average SINR provides the highest gains in terms of coverage and rate, while the use of SFR allows for more efficient use of shared spectrum between the tiers, while still mitigating much of the interference. Additionally, in the context of multi-tier networks with closed access in some tiers, the proposed framework shows the impact of cross-tier interference on closed access FFR, and informs the selection of key FFR parameters in open access.
Andrews Jeffrey G.
Ganti Radha Krishna
Ghosh Arunabha
Novlan Thomas D.
No associations
LandOfFree
Analytical Evaluation of Fractional Frequency Reuse for Heterogeneous Cellular Networks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Analytical Evaluation of Fractional Frequency Reuse for Heterogeneous Cellular Networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analytical Evaluation of Fractional Frequency Reuse for Heterogeneous Cellular Networks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-698489