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...

Due to its tractability, a multitier model of mutually independent Poisson point processes (PPPs) for heterogeneous cellular networks (HCNs) has recently been attracting much attention. However, in reality, the locations BSs, within each tier and across tiers, are not fully independent. Accordingly, this paper, we propose two HCN models with inter-tier dependence (Case 1) intra-tier 2), respectively. In Case 1, macro-base station (MBS) pico-base (PBS) deployments follow process (PPP) hole...

Enabling device-to-device (D2D) communications in millimeter-wave (mm-wave) networks is of critical importance for the next-generation mobile to support very high data rates (multi-gigabits-per-second) devices. In this paper, we provide a fine-grained performance analysis mm-wave D2D communication networks. Specifically, first establish general and tractable framework investigate using Poisson bipolar model integrated with several features band. To show what fraction users network achieve...

As a key enabling technology for truly sustainable operation of devices, wireless energy and information transfer (WEIT) has attracted significant attention in communication networks. Previous works on WEIT network analysis mostly concentrated the outage probability or expectation transferred at typical wirelessly powered device using stochastic geometry. These calculations are relatively straightforward, but they only provide limited extracted by individual devices. This paper considers...

The current cellular networks have evolved to be more randomly, irregularly, and heterogeneously deployed meet the exponential growth of mobile data traffic demand for seamless coverage, making signal-to-interference ratio (SIR) distribution challenging analyze. Therefore, in this paper, we propose two simple approximative approaches SIR general heterogeneous (HCNs) based on ASAPPP method, which stands "approximate analysis Poisson point process" MISR (mean interference-to-signal...

Device caching has recently been proposed as an efficient way to offload traffic from congested cellular networks. However, previous works usually ignore the fact that, in practice, user device may not be willing help others due limited battery capacity. In this paper, we introduce cooperation among device-to-device (D2D) transmitters and propose two novel hybrid strategies-single-point combined with two-point cooperative joint transmission (SPC-CCJT) or multi-stream (SPC-CCMT)-aiming at...

Unmanned aerial vehicle (UAV) mounted relays can provide effective solutions to extend the coverage of covert communications. Nevertheless, ignoring covertness during channel estimation may lead failure air-ground transmission. In this correspondence, a UAV-relayed long-distance communication scheme is proposed with pilot design under finite blocklength. The warden adopts either independent or joint detection schemes detect We first calculate optimal threshold and derive constraints at...

Millimeter-wave (mm-wave) device-to-device (D2D) communication is considered one of the most promising enabling technologies to meet demanding requirements future networks. Previous works on mm-wave D2D network analysis mostly case that all devices were equipped with exactly same number antennas, whereas real networks are more complicated due coexistence diverse devices. In this paper, we present a comprehensive investigation interference characteristics and link performance in where...

Low earth orbit mobile satellite system (LEO-MSS) is the major to provide communication support for terminals beyond coverage of terrestrial systems. However, quick movement LEO satellites and current single-layer architecture impose restrictions on capability satisfactory service quality, especially remote non-land regions with high traffic requirement. To tackle this problem, high-altitude platforms (HAPs) relays (TRs) are introduced cover hot-spot regions, becomes an LEO-HAP multi-layer...

This correspondence investigates the robust unmanned aerial vehicle (UAV) enabled covert communication system with active ground wardens of collusive detection and location uncertainty. The three-dimensional (3D) trajectory transmit power UAV are jointly optimized to maximize average transmission rate subject worst-case covertness constraint. problem is intractable due its nonconvexity semi- positive definite matrix constraint, an iterative suboptimal algorithm proposed based on block...

Abstract. Decades to centuries of continuous geomagnetic observation data have extensive scientific research and practical application value, especially in revealing the long-term variation rules field, which is irreplaceable. During International Geophysical Year (1957–1958), China established observatories Beijing, Lhasa, Lanzhou, Wuhan, Guangzhou, Changchun, Urumqi, forming initial structure China's network together with Shanghai Observatory. These continuously observed despite facing...

Intelligent reflecting surface (IRS) is a promising technology to provide line-of-sight (LOS) links for blocked paths, especially in millimeter wave (mmWave) cellular networks. However, practice, it difficult IRSs arbitrarily adjust the reflection angle align served users. A solution deploy distributed increase probability that users lie directions. This paper develops stochastic geometry-based approach studying coverage enhancement mmWave networks via IRSs. Specifically, locations of are...

Simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) has attracted extensive attentions due to its prominent advantages future wireless networks. This correspondence considers a downlink multi-input single-output non-orthogonal multiple access system, in which the STAR-RIS is utilized improve secrecy performance. To restrain internal eavesdropping, we formulate rate maximization problem propose secure transmission design via joint active passive beamforming...

Though cooperative relaying is believed to be a promising technology improve the energy efficiency of cellular networks, relays' static power consumption might worsen therefore can not neglected. In this paper, we focus on whether and how networks improved via relays. Based spatial Poisson point process, an analytical model proposed evaluate relay-assisted networks. With aid technical tools stochastic geometry, derive distributions signal-to-interference-plus-noise ratios (SINRs) mean...

This paper focuses on the meta distributions of signal-to-interference-plus-noise ratio (SINR) and user-perceived rate in heterogeneous cellular networks (HCNs) with multiple tiers base stations. On one hand, it is desirable to offload users small cells alleviate congestion macrocells; other such offloading would turn cause an SINR degradation offloaded users, which needs be mitigated through interference avoidance based resource partitioning. Thus, consideration both aspects, we provide a...

In order to evaluate the impacts of swarm distribution characteristics unmanned aerial vehicles (UAVs) and complexity millimeter wave (mmWave) propagations on coverage performance UAV networks, this paper develops a stochastic geometry-based approach for modeling analysis single- multi-swarm networks with mmWave communications. We first utilize binomial point processes (BPPs) model locations UAVs in finite area as single-swarm network allow arbitrary user locations. Then, we define...

To relieve the high backhaul load and long transmission time caused by huge mobile data traffic, caching devices are deployed at edge of networks. The key to efficient is predict content popularity accurately while touching users' privacy as little possible. Recently, many studies have applied federated learning in improve security. However, they still give away some participants, especially ignoring private leakage trained model. solve this problem further cache hit ratio, we propose an...

In heterogeneous cellular networks (HCNs), the macrocell network is usually assumed to be overlaid by multiple independent tiers of small cells. However, in reality, locations base stations (BSs) belonging different are not fully independent. Accordingly, this paper, we propose a two-tier HCN model with inter-tier dependence, where macro-BS (MBS) and pico-BS (PBS) deployments follow Poisson point process (PPP) hole (PHP), respectively. Under setup, derive bounds on outage probabilities both...

In millimeter-wave (mm-wave) cellular networks, directional antenna arrays are typically adopted to mitigate the severe propagation loss. However, interference caused by such highly beams may, in turn, result a significant number of transmission failures, especially for dense networks. To tackle this problem, we propose two inter-cell coordination (ICIC) schemes mm-wave bands: one is merely based on path loss incorporating blockage effect (PL-ICIC); other considers both and directivity gain...

Combining intelligent reflecting surface (IRS) with an unmanned aerial vehicle to form IRS (AIRS) swarms is effective way enable panoramic full-angle reflection, high configuration flexibility and reliable air-ground line-of-sight (LoS) connections, especially in millimeter wave (mmWave) bands. In this paper, we use stochastic geometry provide a performance analytical framework for AIRS swarm-assisted mmWave cellular networks, where each base station (BS) has swarm assist downlink...

The spatial structure of transmitters in wireless networks plays a key role evaluating the mutual interference and hence performance. Although 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 practicability tradeoffs, we introduce promote $\beta$-GPP, an intermediate class...