Results 81 to 90 of about 3,446,761 (242)
On the Ergodic Channel Capacity for Indoor Visible Light Communication Systems
IEEE Access, 2017 Since indoor visible light communication (VLC) modulates the information into the light beams emitted from light-emitting diodes, the channel gain is often modeled as the Lambertian model.
Ke Xu +3 more
doaj +1 more source
, 2017 We consider a cognitive radio system, consisting of a primary transmitter (PUtx), a primary receiver (PUrx), a secondary transmitter (SUtx), and a secondary receiver (SUrx). The secondary users (SUs) are equipped with steerable directional antennas.
Vosoughi, Azadeh, Yazdani, Hassan
core +1 more source
Performance Limits of Fluid Antenna Systems [PDF]
, 2020 Fluid antenna represents a concept where a mechanically flexible antenna can switch its location freely within a given space. Recently, it has been reported that even with a tiny space, a single-antenna fluid antenna system (FAS) can outperform an L ...
Shojaeifard, Arman +3 more
core +1 more source
Tackling nonlinear price impact with linear strategies
Mathematical Finance, Volume 35, Issue 2, Page 422-440, April 2025.Abstract Empirical studies in various contexts find that the price impact of large trades approximately follows a power law with exponent between 0.4 and 0.7. Yet, tractable formulas for the portfolios that trade off predictive trading signals, risk, and trading costs in an optimal manner are only available for quadratic costs corresponding to linear ...
Xavier Brokmann +3 more
wiley +1 more source
Downlink capacity analysis in distributed antenna systems
Tongxin xuebao, 2012 The downlink capacity was analyzed in distributed antenna systems(DAS).Firstly,a composite channel model was established,which took path loss,lognormal shadowing and Rayleigh fading into account.Then,based on the channel model,both the ergodic capacity ...
Jun-bo WANG +5 more
doaj +2 more sources
Ergodic capacity analysis for MIMO two－hop relay system based on decode－and－forward
上海师范大学学报. 自然科学版, 2012 This paper presents an ergodic capacity analysis of MIMO two－hop relaying systems based on the relay protocol of decode－and－forward.Firstly the expression for the probability density function of an unordered eigenvalue of the system is derived.Then a ...
CHEN Birong, ZHANG Jing, DONG Jianping
doaj
e-Prime: Advances in Electrical Engineering, Electronics and EnergyWith increased demand for the internet and the Internet of Things (IoT), future wireless communication networks are draw more attention to afford the massive connectivity, capacity, and extensive coverage requirements.
Thaherbasha Shaik +3 more
doaj +1 more source
Ergodic Capacity of Cognitive Radio Under Imperfect Channel-State Information [PDF]
IEEE Transactions on Vehicular Technology, 2012 A spectrum-sharing communication system where the secondary user is aware of the instantaneous channel state information (CSI) of the secondary link, but knows only the statistics and an estimated version of the secondary transmitter-primary receiver (ST-PR) link, is investigated. The optimum power profile and the ergodic capacity of the secondary link
Rezki, Zouheir, Alouini, Mohamed-Slim
openaire +3 more sources
A Vulnerability Lens for Intuitive‐Logic Scenarios
FUTURES &FORESIGHT SCIENCE, Volume 8, Issue 1, April 2026.ABSTRACT Exploration of possibilities by means of intuitive logic is hampered by a large number of scenarios, which easily exceed the limits imposed by human bounded rationality. While many practitioners constrain their scenarios within a 2 × 2 $2\times 2$ matrix by design, more structured approaches point to rationales such as eliminating ...
Guido Fioretti
wiley +1 more source
International Journal of Antennas and Propagation, 2012 The downlink performance and capacity of distributed antenna systems (DASs) with multiple receive antennas are investigated in multi-input multi-output (MIMO) fading and multicell environment.
Xiangbin Yu +4 more
doaj +1 more source