Results 61 to 70 of about 41,590 (218)
3-D Statistical Channel Model for Millimeter-Wave Outdoor Mobile Broadband Communications
, 2015 This paper presents an omnidirectional spatial and temporal 3-dimensional statistical channel model for 28 GHz dense urban non-line of sight environments.
Rappaport, Theodore S. +1 more
core +1 more source
Numerical calculation of channel capacity for wirelessinfrared multipath channels
Electronics Letters, 1998 The authors present an efficient numerical approach to the channel capacity evaluation of wireless infrared channels, impaired by multipath induced intersymbol interference. The major disadvantage of this technique is that it involves only one-dimensional integration as opposed to previously proposed methods which rely on multidimensional Monte Carlo ...
Samaras, K, O'Brien, D, Edwards, D
openaire +1 more source
Path‐Based Deep Reinforcement Learning for On‐Board Routing in Satellite Constellation Networks
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Efficient usage of available network resources is a crucial factor for broadband services in interconnected satellite constellations. To meet required quality of service standards under heavy network loads, it is essential to optimize traffic distribution among the intersatellite links. To address this challenge, we propose an adaptive traffic
Manuel M. H. Roth +4 more
wiley +1 more source
Key Generation Scheme Based on Wireless Multipath Channel Parameter [PDF]
Jisuanji gongcheng, 2018 Because of the broadcast characteristics of wirless network,in the process of signal transmission,information leakage often occurs,so that there are hidden dangers of information security.In view of this,an Orthogonal Frequency Division Multiplexing(OFDM)
ZHANG Xinmi,XU Ming
doaj
Anti-Multipath Orthogonal Chirp Division Multiplexing for Underwater Acoustic Communication
IEEE Access, 2020 Multipath due to reflections of the sea surface, seabed, and obstacles, as well as inhomogeneity within the ocean, is an important characteristic of underwater acoustic channels. Mutual interference among multiple paths causes severe amplitude fading and
Peibin Zhu +4 more
doaj +1 more source
Adaptive equaliser for multipath channels
Electronics Letters, 1970 An adaptive equalising system is described which makes possible efficient communication of serial digital data over a multipath channel, within certain limitations of the severity of the multipath. This technique is particularly suitable for two paths of comparable strength.
R.T. Boyd, F.C. Monds
openaire +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada +4 more
wiley +1 more source
Sensors, 2019 Underwater acoustic communications are challenging because channels are complex, and acoustic waves when propagating in the ocean are subjected to a variety of interferences, such as noise, reflections, scattering and so on.
Feng Zhou +5 more
doaj +1 more source
Energy Detection of Unknown Signals over Cascaded Fading Channels
, 2015 Energy detection is a favorable mechanism in several applications relating to the identification of deterministic unknown signals such as in radar systems and cognitive radio communications. The present work quantifies the detrimental effects of cascaded
Al-Qutayri, Mahmoud +4 more
core +1 more source
Directive Antenna Clutter Loss in Slant Paths
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT This paper investigates the development of a clutter loss model specifically for slant paths involving directive antennas. Conventionally, clutter loss is characterized by using isotropic antennas to facilitate standard link budget calculations via single antenna gain values.
Fernando Pérez Fontán +4 more
wiley +1 more source