Modeling Heterogeneous Network Interference Using Poisson Point Processes
TLDR
This paper proposes to analyze downlink performance in a fixed-size cell, which is inscribed within a weighted Voronoi cell in a Poisson field of interferers, using recent applications of stochastic geometry to analyze cellular systems.Abstract:
Cellular systems are becoming more heterogeneous with the introduction of low power nodes including femtocells, relays, and distributed antennas. Unfortunately, the resulting interference environment is also becoming more complicated, making evaluation of different communication strategies challenging in both analysis and simulation. Leveraging recent applications of stochastic geometry to analyze cellular systems, this paper proposes to analyze downlink performance in a fixed-size cell, which is inscribed within a weighted Voronoi cell in a Poisson field of interferers. A nearest out-of-cell interferer, out-of-cell interferers outside a guard region, and cross-tier interferers are included in the interference calculations. Bounding the interference power as a function of distance from the cell center, the total interference is characterized through its Laplace transform. An equivalent marked process is proposed for the out-of-cell interference under additional assumptions. To facilitate simplified calculations, the interference distribution is approximated using the Gamma distribution with second order moment matching. The Gamma approximation simplifies calculation of the success probability and average rate, incorporates small-scale and large-scale fading, and works with co-tier and cross-tier interference. Simulations show that the proposed model provides a flexible way to characterize outage probability and rate as a function of the distance to the cell edge.read more
Citations
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Downlink coverage performance of 2-tier closed access heterogeneous cellular networks
Aroba Khan,Abbas Jamalipour +1 more
TL;DR: This work considers a grid-based deployment for macro BSs to ensure a minimum separation between them and randomly distributed low-powered BSs within the macro cells and analyzes co-channel interference in such network for a macro cell user and evaluates coverage performance for downlink transmission under closed access.
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A Topology Controlling Scheme Based on Guard Region in Wireless Sensor Network
TL;DR: The concept of a guard region, defined as the region around each receiver where interfering transmissions are inhibited to make the topology control, is introduced and the scheduling of interfering node in guard region and the density of active sensors are achieved theoretically.
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Analysis of Outage Probability of MRC with $\eta-\mu$ co-channel interference
TL;DR: Approximate outage probability expressions are derived for systems employing maximum ratio combining, when both the desired signal and the interfering signals are subjected to $\eta-\mu$ fading, with the interferers having unequal power.
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Impact of Underlaid Multi-antenna D2D on Cellular Downlink in Massive MIMO Systems
TL;DR: In this paper, the average per-user spectral efficiency (SE) of CUEs was analyzed as a function of the D2D area spectral efficiency in a massive multiple-input multiple-output (MIMO) downlink system underlaid with a network of multi-antenna DUEs.
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