Wireless networks are fundamentally limited by the intensity of received signals and their interference. Since both these quantities depend on spatial location nodes, mathematical techniques have been developed in last decade to provide communication-theoretic results accounting for geometrical configuration. Often, nodes network can be modeled as random, following example a Poisson point process. In this case, different based stochastic geometry theory random geometric graphs -including...

For more than three decades, stochastic geometry has been used to model large-scale ad hoc wireless networks, and it succeeded develop tractable models characterize better understand the performance of these networks. Recently, have shown provide yet accurate bounds for multi-tier cognitive cellular Given need interference characterization in high potential simplify their modeling insights into design. Hence, a new research area dealing with analysis networks is increasingly attracting...

The distribution of Euclidean distances in Poisson point processes is determined. main result the density function distance to n-nearest neighbor a homogeneous process Ropf <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">m</sup> , which shown be governed by generalized Gamma distribution. has many implications for large wireless networks randomly distributed nodes

Sensor networks offer a powerful combination of distributed sensing, computing and communication. They lend themselves to countless applications and, at the same time, numerous challenges due their peculiarities, primarily stringent energy constraints which sensing nodes are typically subjected. The distinguishing traits sensor have direct impact on hardware design least four levels: power source, processor, communication hardware, sensors. Various platforms already been designed test many...

The performance of wireless networks depends critically on their spatial configuration, because received signal power and interference depend the distances between numerous transmitters receivers. This is particularly true in emerging network paradigms that may include femtocells, hotspots, relays, white space harvesters, meshing approaches, which are often overlaid with traditional cellular networks. These heterogeneous approaches to providing high-capacity access characterized by randomly...

In the analysis of large random wireless networks, underlying node distribution is almost ubiquitously assumed to be homogeneous Poisson point process. this paper, locations are form a clustered process on plane. We derive distributional properties interference and provide upper lower bounds for its CCDF. consider probability successful transmission in an limited channel when fading modeled as Rayleigh. numerically integrable expression outage closed-form bounds.We show that...

Motivated by the ongoing discussion on coordinated multipoint in wireless cellular standard bodies, this paper considers problem of base station cooperation downlink heterogeneous networks. The focus is joint transmission scenario, where an ideal backhaul network allows a set randomly located stations, possibly belonging to different tiers, jointly transmit data, mitigate intercell interference and hence improve coverage spectral efficiency. Using tools from stochastic geometry, integral...

The calculation of the SIR distribution at typical receiver (or, equivalently, success probability transmissions over link) in Poisson bipolar and cellular networks with Rayleigh fading is relatively straightforward, but it only provides limited information on probabilities individual links. This paper focuses meta SIR, which conditional Ps given point process, bounds, an exact analytical expression, a simple approximation for it. fine-grained answers questions such as "What fraction users...

The spatial structure of base stations (BSs) in cellular networks plays a key role evaluating the downlink performance. In this paper, different stochastic models (the Poisson point process (PPP), hard-core (PHCP), Strauss (SP), and perturbed triangular lattice) are used to model by fitting them locations BSs real obtained from public database. We provide two general approaches for fitting. One is method maximum pseudolikelihood. As fitted models, it not sufficient distinguish conclusively...

Consider a cognitive radio network with two types of users: primary users (PUs) and (CUs), whose locations follow independent Poisson point processes. The the policy that transmitter is active only when it outside user exclusion regions. We found under this setup form process called hole process. Due to interaction between through regions, an exact calculation interference outage probability seems unfeasible. Instead, different approaches are taken tackle problem. First, bounds for (in...

In wireless networks, knowledge of internode distances is essential for performance analysis and protocol design. When determining distance distributions in random the underlying nodal arrangement almost universally taken to be a stationary Poisson point process. While this may good approximation some cases, there are also certain shortcomings model, such as fact that, practical number nodes disjoint areas not independent. This paper considers more-realistic network model where known fixed...

Matérn hard core processes of types I and II are the point choice to model concurrent transmitters in CSMA networks. We determine mean interference observed at a node process compare it with Poisson same density. It turns out that despite similarity two models, they behave rather differently. For type I, excess (relative case) increases exponentially hard-core distance, while for II, gap never exceeds 1 dB.

The spatial structure of transmitters in wireless networks plays a key role evaluating mutual interference and, hence, performance. Although the Poisson point process (PPP) has been widely used to model configuration networks, it is not suitable for with repulsion. Ginibre (GPP) one main examples determinantal processes that can be random phenomena where repulsion observed. Considering accuracy, tractability, and practicability tradeoffs, we introduce promote β-GPP, which an intermediate...

Millimeter wave (mm-wave) communications is considered a promising technology for 5G networks. Exploiting beamforming gains with large-scale antenna arrays to combat the increased path loss at mm-wave bands one of defining features. However, previous works on network analysis usually adopted oversimplified patterns tractability, which can lead significant deviation from performance actual patterns. In this paper, using tools stochastic geometry, we carry out comprehensive investigation...

In this paper, we combine inertial sensing and sensor network technology to create a pedestrian dead reckoning system. The core of the system is lightweight sensor-and-wireless-embedded device called NavMote that carried by pedestrian. gathers information about motion from an integrated magnetic compass accelerometers. When comes within range (composed NetMotes), it downloads compressed data network. relays via RelayMote center where are processed into estimate trajectory based on algorithm....

The goal of this paper is to establish which practical routing schemes for wireless networks are most suitable power-limited and bandwidth-limited communication regimes. We regard channel state information (CSI) at the receiver point-to-point capacity-achieving codes additive white Gaussian noise (AWGN) as features, interference cancellation (IC) possible, but less practical, synchronous cooperation (CSI transmitters) impractical. consider a network with single source node, destination N-1...

Interference is a main limiting factor of the performance wireless ad hoc network. The temporal and spatial correlation interference makes outages correlated temporally (important for retransmissions) spatially routing). In this letter we quantify in network whose nodes are distributed as Poisson point process on plane when ALOHA used multiple-access scheme.

The subject of this article is the long standing open problem developing a general capacity theory for wireless networks, particularly capable describing fundamental performance limits mobile ad hoc networks. A MANET peer-to-peer network with no preexisting infrastructure. MANETs are most single-hop, relay, interference, mesh, and star networks comprising special cases. lack has stunted development commercialization many types including emergency, military, sensor, community mesh Information...

For multihop wireless networks, a fundamental question is whether it advantageous to route over many short hops (short-hop routing) or smaller number of longer (long-hop routing). Short-hop routing has gained lot support, and its proponents mainly produce two arguments: reduced energy consumption higher signal-to-interference ratios. Both arguments stem from simplified analysis based on crude channel models that neglects delay, end-to-end reliability, bias power consumption, the impact...

We design and implement a software-radio system for Superposition Coding (SC), multiuser transmission scheme that deliberately introduces interference among user signals at the transmitter, using library of off-the-shelf point-to-point channel codes. experimentally determine set rate-pairs achieved by this under packet-error constraint. Our results suggest SC can provide substantial gains in spectral efficiencies over those orthogonal schemes such as Time Division Multiplexing. findings also...

This paper addresses the routing problem for large wireless networks of randomly distributed nodes with Rayleigh fading channels. First, we establish that distances between neighboring in a Poisson point process follow generalized distribution. Based on this result, it is then shown that, given an end-to-end packet delivery probability (as quality service requirement), energy benefits over many short hops are significantly smaller than deterministic network models based geometric disk...

In mobile networks, distance variations caused by node mobility generate fluctuations in the channel gains. Such can be treated as another type of fading besides multipath effects. this paper, interference statistics random networks are characterized incorporating nodes to gain fluctuations. The mean is calculated at origin and border a finite network. network performance evaluated terms outage probability. Compared static network, single snapshot does not change under uniform models....