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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Journal ArticleDOI
Performance Analysis and Optimisation of FFR-Aided OFDMA Networks using Channel-Aware Scheduling
TL;DR: An analytical framework allowing the downlink performance evaluation of FFR-aided OFDMA networks when using channel-aware scheduling policies, which contemplates the use of different rate allocation strategies, thus allowing to assess the network behaviour under ideal or realistic conditions.
Proceedings ArticleDOI
Secrecy capacity analysis in D2D underlay cellular networks: Colluding eavesdroppers
TL;DR: An investigation of the secrecy capacity in device-to-device (D2D) enabled cellular network under the collusion of eavesdroppers and two techniques are used for the simple yet exact evaluation of the average secrecy rate using moment generating functions with and without interference.
Book ChapterDOI
Massive MIMO for Interference Suppression: Cell-Edge Aware Zero Forcing
Howard H. Yang,Tony Q. S. Quek +1 more
TL;DR: This work combines the tools from random matrix theory and stochastic geometry to develop a framework that enables them to quantify the performance of CEA-ZF and compare that with a conventional cell-edge-unaware (CEU) ZF precoder in a network of random topology.
Journal ArticleDOI
Intracell Interference Characterization and Cluster Interference for D2D Communication
TL;DR: In this article, a doubly stochastic Poisson process (DSP) was proposed to model D2D communication, which is a generalization of the homogeneous spatial Poisson point process (SPPP).
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