Auflistung Nach Schlagwort "Fading channels"
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An adaptable LTE turbo decoder for indoor/low range outdoor environment: A study on low bit rates
(2015)In this work we study an adaptable SOVA/log-MAP turbo decoder for LTE mobile standard and flat Rayleigh fading channel. Particularly, this decoder is shown to adapt dynamically to different service scenarios, considering ... -
Cache-assisted interference cancellation in the multi-user downlink fading channel and its application in HetNets
(2019)Next generation wireless systems will be characterized by two things among others: the dense deployment of small cell base stations (SBS), and caching of popular data files at the edge. In this paper we study the downlink ... -
Cascaded Composite Turbulence and Misalignment: Statistical Characterization and Applications to Reconfigurable Intelligent Surface-Empowered Wireless Systems
(2022)Reconfigurable intelligent surfaces (RISs) empowered high-frequency wireless systems are expected to become the supporting pillar for several reliability and data rate hungry applications. Such systems are, however, sensitive ... -
CDMA RoFSO Links with Nonzero Boresight Pointing Errors over M Turbulence Channels
(2018)Radio-on-Free-Space Optical systems constitute a very attractive option for interconnecting central base stations with remote antenna units. Nonetheless, the optical signal propagation through the atmosphere is tremendously ... -
Enhancing QoS Through Fluid Antenna Systems over Correlated Nakagami-m Fading Channels
(2022)Fluid antenna systems (FAS) enable mechanically flexible antennas that offer adaptability and flexibility for modern communication devices. In this work, we present a conceptual model for a single-antenna N-port (SANP) FAS ... -
Feedback-Based SSK Modulation: Constellation Design and Performance Results
(2020)In this article, we propose a limited feedback-based space-shift keying (SSK) modulation scheme where transmitter (Tx) obtains partial channel state information (CSI) via a feedback link from receiver (Rx). More specifically, ... -
Interference decoding in cellular wireless relay networks with space-time coding
(2014)In this paper we propose a cooperative protocol and a symbol decoding algorithm that target improved performance in the presence of inter-cell interference (ICI) in wireless cellular networks. Our scheme uses the wireless ... -
Interference decoding in cellular wireless relay networks with space-time coding
(2016)In this paper we propose a cooperative protocol and a symbol decoding algorithm that target improved performance in the presence of inter-cell interference (ICI) in wireless cellular networks. Our scheme uses the wireless ... -
Lossy transmission of correlated sources in a multiple access quasi-static fading channel
(2016)In this paper, we investigate low-complexity, receiver-driven strategies for the transmission of two correlated sources in a multiple access quasi-static fading channel. We consider two different transmission modes at the ... -
An LTE reconfigurable SOVA/log-MAP turbo decoder for uncorrelated Rayleigh fading
(2015)According to published literature for turbo decoding, SOVA and log-MAP algorithms share common operations. This paper shows that the improved reconfigurable SOVA/log-MAP turbo decoder can be implemented in LTE standard for ... -
Mixed THz/FSO Relaying Systems: Statistical Analysis and Performance Evaluation
(2022)In this paper, the performance of a mixed Terahertz/free-space optical (THz/FSO) wireless transmission system is studied, where the joint effects of channel fading and pointing errors are considered for both THz and FSO ... -
Modeling the lossy transmission of correlated sources in multiple access fading channels
(2017)In this paper, we develop accurate distortion models for the lossy transmission of two correlated sources in a multiple access Rayleigh fading channel. We focus on a class of real-life communication systems, where the ... -
On the inverse-Gaussian shadowing
(2011)The Inverse Gaussian (IG) distribution has been recently proposed as a less complex alternative to the classical log-normal distribution to describe shadowing phenomena. This paper investigates the performance of digital ... -
Performance and Channel Modeling Optimization for Hovering UAV-Assisted FSO Links
(2022)Unmanned Aerial Vehicle (UAV)-assisted free-space optical (FSO) communication has become a promising solution in both civil and military applications. Nevertheless, hovering UAV-assisted FSO links suffer from several losses ... -
Performance of free-space optical communications over a mixture composite irradiance channel
(2017)The performance of a typical free-space optical link using a recently proposed composite model for turbulence and pointing error effects is studied. This model offers analytical tractability in the statistical description ... -
Resource allocation and cross-layer control in wireless networks
(2006)Information flow in a telecommunication network is accomplished through the interaction of mechanisms at various design layers with the end goal of supporting the information exchange needs of the applications. In wireless ... -
Utilizing turbo codes for secure 5G V2X
(2020)Turbo codes is a very powerful and efficient error correction coding scheme since 1993. 5G V2X services need a compromise between performance and latency. Having this in mind and despite the complexity of turbo codes, our ... -
Video-aware relay selection in single-carrier and OFDM wireless systems
(2014)In this paper we consider packetized video transmission in cooperative relay-based wireless networks. We propose algorithms for optimized relay selection that take into account the content of each specific video packet. ... -
Video-aware relay selection in single-carrier and OFDM wireless systems
(2016)In this paper we consider packetized video transmission in cooperative relay-based wireless networks. We propose algorithms for optimized relay selection that take into account the content of each specific video packet. ...